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Bio ch 1 review

Total questions: 169

Worksheet time: 4hrs 29mins

Name
Class
Date
1.
In the word BIOLOGY, the prefix BIO means
a)
the study of...
b)
life, living
c)
organism
d)
biology
2.

What is the processes that organisms use to maintain a stable internal environment?

a)

Heredity

b)

Metabolism

c)

Homeostasis

d)

Cell

3.

Anything that has mass and takes up space

a)

matter

b)

atoms

c)

proteins

d)

molecules

4.

A pure substance that cannot be broken down into other substances. Some common ones include Carbon, Oxygen, and Hydrogen.

a)

atom

b)

compound

c)

element

d)

molecule

5.

the smallest particle of an element

a)

molecule

b)

compound

c)

element

d)

atom

6.
Which particles are involved in covalent bonding?
a)
Atoms which share delocalised electrons
b)
Atoms which share pairs of electrons
c)
Oppositely charged ions
7.
Which particles are transferred when a metal atom reacts with a non-metal atom?
a)
Protons
b)
Neutrons
c)
Electrons
8.
Which is the strongest acid?
a)
pH 14
b)
pH 2
c)
pH 7
d)
pH 0
9.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
10.
Why is water a polar molecule?
a)
It is cohesive
b)
It forms hydrogen bonds
c)
There is a lot of it at the north and south poles
d)
It has a partial positive and a partial negative end
11.
The main types of chemical bonds are:
a)
ionic and subliminal
b)
covalent and hydrogenated
c)
ionic and covalent
d)
ionic and flourite
12.
water molecules stick to other water molecules
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
13.

Which of the following would be considered a physical change?

a)

Cutting paper

b)

pH test

c)

Burning marshmellow

d)

Roasting a Turkey

14.
Which of the following changes is NOT a physical change?
a)
getting a haircut
b)
sharpening a pencil
c)
spoiled milk
d)
cracking an egg into a bowl
15.

Which answer below makes a correct statement?

a)

Physical change only changes the color.

b)

Physical change only changes the size.

c)

Physical change changes the matter into something totally different.

d)

Physical change begins and ends with the same matter.

16.
Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent? 
a)
purity
b)
polarity and cohesion
c)
high heat capacity
d)
expansion upon freezing
17.
A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?
a)
Specific heat 
b)
Surface tension
c)
Cohesion and adhesion of water molecules 
d)
Formation of covalent bonds between hydrogen and oxygen molecules
18.
Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?
a)
Water is an acid.
b)
Water is a versatile solvent.
c)
Water has a high heat capacity.
d)
 Water acts as a buffer.
19.

A process in which atoms of one or more substances rearrange to form one or more new substances

a)

chemical reaction

b)

chemical production

c)

physical change

d)

chemical change

20.
_________________________ is a measure of the average kinetic energy of the particles in a material.
a)
thermal
b)
friction
c)
temperature
d)
expansion
21.

Which of the following is true about acids and bases?

a)

The lower the pH #, the stronger the acid

b)

the higher the pH #, the stronger the acid

c)

The lower the pH #, the more neutral the acid

d)

The higher the pH #, the weaker the base

22.

What subatomic particle is found in the space surrounding the nucleus of an atom?

a)

protons

b)

electrons

c)

neutrons

23.

Which subatomic particle has a negative charge?

a)

protons

b)

neutrons

c)

electrons

d)

protons and electrons

24.
Ions are: 
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
25.

If an atom has 12 protons, 12 neutrons, and 10 electrons, what is it's charge?

a)

+2

b)

+1

c)

Neutral

d)

-1

e)

-2

26.

The particle(s) that is/are found in the nucleus of an atom:

a)

neutrons only

b)

electrons only

c)

protons only

d)

protons and neutrons

e)

electrons and neutrons

27.

What particles are electrons attracted to?

a)

neutrons

b)

other electrons

c)

protons

28.

What particles are shared between atoms in a covalent bond?

a)

neutrons

b)

electrons

c)

protons

29.

An atom of carbon has 6 protons and 7 neutrons in its nucleus. If the atom is neutral, how many electrons does it have?

a)

0

b)

7

c)

6

d)

13

30.

The number of protons in the nucleus of an atom?

a)

Isotope

b)

Atomic mass

c)

Atomic number

d)

Element

31.

An atom of iodine has 7 valence electrons. What will an atom of iodine MOST likely do to be stable?

a)

Lose 1 electron

b)

Lost 7 electrons

c)

Gain 1 electron

d)

Neither gain nor lose any valence electrons

32.

An atom of neon has 8 valence electrons. What will an atom of neon MOST likely do to be stable?

a)

Gain 1 electron

b)

Lose 2 electrons

c)

Lose 8 electrons

d)

Neither gain nor lose any valence electrons

33.

What type of bond is formed when atoms share electrons?

a)

Covalent

b)

Ionic

c)

Hydrogen

d)

Polyatomic

34.

How are ionic and covalent bonds alike?

a)

They both form organic molecules.

b)

They both fill outer electron shells.

c)

They both transfer electrons from one atom to another.

d)

They both transfer protons from one atom to another.

35.

How many protons are in carbon?

a)

12

b)

6

c)

0

d)

7

36.

Calculate the number of neutrons for potassium.

a)

20

b)

19

c)

39

d)

58

37.

The atomic number of an element is equal to the number of

a)

protons and electrons

b)

protons

c)

electrons

d)

electrons and neutrons

38.

Protons + __________ = atomic mass

a)

electrons

b)

neutrons

c)

neither

39.

Which of the following is formed when an atom gains or losses electrons?

a)

Element.

b)

Compound.

c)

Molecule.

d)

Ion.

40.

Atoms in molecules share pairs of electrons when they make

a)

Covalent bonds.

b)

Ionic bonds.

c)

Hydrogen bonds.

d)

Polymers.

41.

What gives water many properties that are important to living things? Chose the answer that best applies.

a)

Temperature

b)

Hydrogen bonds

c)

Density

d)

Specific heat

42.

Select all solutions that are acidic.

a)

A solution with a pH of 8.

b)

A solution with a pH of 6.

c)

A solution with a pH of 12.

d)

A solution with a pH of 3.

43.

Atoms connected by covalent bonds share

a)

Pairs of electrons.

b)

Ionic compounds.

c)

Carbon and Oxygen.

d)

Hydrogen ions.

44.

Using the image; what is represented by the little black dots on the circles?

a)

Protons.

b)

Neutrons.

c)

Atoms.

d)

Electrons.

45.

Phase change from liquid to gas is called:

a)

Freezing

b)

Condensation

c)

Vaporization

d)

Sublimation

46.

The state of matter that has no definite size or shape is

a)

Solid

b)

Liquid

c)

Gas

47.

Particles in a ______________________ move quickly and are far apart.

a)

gas

b)

solid

c)

liquid

48.
The temperature of a substance increases as___.
a)
the substance expands
b)
the average kinetic energy of its particles increases
c)
the substance's volume increases
d)
the substance's mass increases
49.

What is the chemical symbol of water?

a)

H2O

b)

CO2

c)

O2

d)

N2

50.

What is cohesion?

a)

The ability of a molecule to "stick" to itself

b)

The ability of a molecule to "stick" to other molecules

c)

Large amounts of energy are required to change the temperature of a substance

d)

A well-organized and efficient team

51.

What about the chemical structure of water causes many of the critical properties that support life on Earth?

a)

Hydrogen Bonds

b)

Cohesive behavior

c)

Polarity

d)

Expansion Upon Freezing

52.

What do the green bonds represent?

a)

Covalent Bond

b)

Hydrogen Bond

c)

Ionic Bond

53.

What characteristic is shown in the image?

a)

Polarity

b)

Hydrogen Bonds

c)

Cohesion

d)

Adhesion

54.

What property of water results in the accumulation of small amounts of water into larger amounts of water? The results in the rivers, lakes, streams, and even the oceans.

a)

Cohesive Behavior

b)

Expansion Upon Freezing

c)

Ability to Moderate Temperature

d)

Universal Solvent

55.

What property of water allows for water to act as a temperature regulator for the world?

a)

Cohesive Behavior

b)

Expansion Upon Freezing

c)

High Specific Heat

d)

Universal Solvent

56.

What property of water causes these Alka-Seltzer tablets to dissolve?

a)

Universal Solvent

b)

Expansion Upon Freezing

c)

Cohesive Behavior

d)

High Specific Heat

57.

Sweating is an example of what property of water?

a)

Ability to Moderate Temperature

b)

Expansion Upon Freezing

c)

Cohesive Behavior

d)

Universal Solvent

58.

Blood functions as a transport mechanism to take nutrients and oxygen to all cells in the body. What property of water allows for this to occur?

a)

Expansion Upon Freezing

b)

Universal Solvent

c)

Cohesive Behavior

d)

Ability to Moderate Temperature

59.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
60.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
61.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
62.
The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attracted to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
63.
molecule in which opposite ends have opposite electric charges
a)
cohesion
b)
polar molecule
c)
hydrogen bond
d)
solution
64.
Why does ice float?
a)
As water freezes, it expands and its density decreases.
b)
As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
c)
As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
d)
As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
65.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
66.
Which types of compounds dissolve easily in water?
a)
Polar and Nonpolar
b)
Polar and Ionic
c)
Nonpolar and Ionic
d)
Covalent and Nonpolar
67.
Water droplets take a spherical shape (as pictured) because of ____________
a)
adhesion
b)
cohesion
c)
capillary action
d)
solubility
68.
Water molecules are attracted to other kinds of molecules because of the property.
a)
Cohesion
b)
Adhesion
c)
Surface Tension
d)
Universal Solvent
69.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
70.
Most of water's properties occur because it is...
a)
A polar covalent
b)
Made with oxygen
c)
A polar ionic
d)
Makes up 75% of the Earth
71.
Water molecules require a lot of energy to separate one from the others.  This gives water a high
a)
density
b)
polarity
c)
solvency
d)
specific heat
72.
Water striders can walk across the surface of calm water. Their feet push the surface of the water down slightly, but they do not break the surface. Why?
a)
The insects are light enough so they do not break the hydrogen bonds holding the water molecules together
b)
The insects actually use their wings to hover slightly above the water’s surface and they only skim it with their feet.
c)
The insect’s feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water’s surface.
d)
The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next
73.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
74.
What is a water molecule composed of?
a)
1 Hydrogen atom and 2 Oxygen atoms
b)
2 Hydrogen atoms and 1 Oxygen atom
c)
3 Oxygen atoms
d)
2 Helium atoms and 1 Oxygen atom
75.
If you dissolve blue paint powder into water, the paint powder is the...
a)
ion
b)
solute
c)
solution
d)
solvent
76.
Which statement best describes an effect of the low density of frozen water on a lake?
a)
When water freezes it contracts, decreasing the water level in the lake.
b)
Water in a lake freezes from the bottom up
c)
Water removes thermal energy from the land, causing the lake to freeze
d)
When water in a lake freezes, it floats and provides insulation for the organisms below
77.
Which combination when referring to salt water is correct in terms of solutes/solvents?
a)
solute: table salt solvent: saltwater
b)
solute: table salt solvent: water
c)
solute: water solvent: table salt
d)
solute: saltwater solvent: water
78.
A pH of 14 is a .....
a)
strong acid
b)
weak acid
c)
Strong base
d)
Weak base
79.
Complete the sentence.
A substance that is more basic has a _____ pH than a substance that is acidic.
a)
lower
b)
higher
c)
the same
d)
none of the above
80.

What does pH measure?

a)

the amount of hydrogen (H+) ions

b)

the amount of hydroxide (OH-) ions

c)

amount of water

d)

all of the above

81.
Where on the pH scale would you find a strong acid?
a)
0-3
b)
4-6
c)
8-10
d)
11-14
82.

During a covalent bond:

a)

Electrons are lost

b)

Electrons are transferred

c)

Electrons are shared

83.

Polar and nonpolar molecules

a)

Will frequently bond to each other, attract, or mix

b)

Will never bond to each other, attract, or mix

c)

Are rare in nature

d)

Will attract but only at low temperatures

84.

Water molecules are strongly attracted to one another due to _______________ bonds, which causes ________________.

a)

Hydrogen; Adhesion

b)

Hydrogen; Cohesion

c)

Ionic; Adhesion

d)

Ionic; Cohesion

85.

Some insects and small organisms can walk on water due to

a)

Adhesion

b)

Capillary Action

c)

Surface Tension

d)

Specific heat

86.

Ice floats on water because it ___________ when it freezes, and becomes __________ dense than water.

a)

Contracts; more

b)

Contracts; less

c)

Expands; more

d)

Expands; less

87.
"Water Loving"
a)
Hydrophobic
b)
Hydrophilic 
c)
Hydroelectric 
d)
Hydroloric
88.
"Water Fearing" 
a)
Hydrophobic
b)
Hydrophilic 
c)
Hydroelectric 
d)
Hydroloric
89.

Something that gets dissolved is a

a)

solute

b)

solution

c)

science

90.

Something that dissolves stuff is called a

a)

Option 1

b)

solvent

c)

solute

91.

A water-based solution is also known as an

a)

orange solution

b)

aqueous solution

c)

plot solution

92.

Water dissolves __________ well.

a)

polar substances (like sugar)

b)

nonpolar substances (like oil)

c)

bricks

93.

Water doesn't dissolve __________ well.

a)

polar substances (like sugar)

b)

nonpolar substances (like oil)

c)

ice

94.

According to the pH range which substance is more acidic than lemon juice?

a)

Hydrochloric Acid

b)

Cabbage

c)

Milk

d)

Water

95.

Forms hydroxide ions (OH-) in water.

a)

Acids

b)

Bases

c)

Both

96.

pH less than 7.

a)

Acids

b)

Bases

c)

All

97.

pH greater than 7.

a)

Acids

b)

Bases

c)

All

98.

A solution with a pH of 7 is ________

a)

increasing

b)

neutral

c)

decreasing

d)

apple juice

99.

Which range of numbers represent basic solution?

a)

0-6

b)

7

c)

8-14

d)

3-9

100.

What primarily determines the pH of solution?

a)

solubility of solute

b)

Hydrogen ion (H+) concentration

c)

temperature of the solution

101.
The lower the pH, the greater the concentration of :
a)
OH-
b)
H+
102.
Feels slippery.
a)
Acids
b)
Bases
c)
All
103.

pH measures:

a)

acidity.

b)

basicity.

c)

the concentration of H+ ions.

d)

all of the above.

104.

What is the universal solvent?

a)

Chocolate milk

b)

Water

c)

Hydrochloric acid

d)

Bleach

105.

A base is a substance

a)

That releases OH- ions when dissolved in water

b)

That releases H+ ions when dissolved in water

c)

Does not release any ions when dissolved in water

d)

None of the above

106.

A pH of 3 is how many times more acidic than a pH of 5?

a)

2

b)

20

c)

10

d)

100

107.

All catalysts are enzymes and all enzymes are catalysts.

a)

True

b)

False

108.

Which of these terms describes the process of building biologically important compounds?

a)

Catabolism

b)

Anabolism

c)

Inhibition

d)

None of the Above

109.

The unidentified red structures are considered to be a/an:

a)

Catabolism

b)

Product

c)

Substates

d)

Enzymes

110.

Identify the following structure:

a)

Dehydration synthesis

b)

Catabolism

c)

Anabolism

d)

Metabolism

111.

Which of the following terms specifically describes the metabolic process of breaking down large molecules?

a)

Catabolism

b)

Metabolism

c)

Anabolism

d)

Dehydration

112.

Metabolism involves

a)

Catabolism

b)

Anabolism

c)

Mutalism

d)

Mutaion

113.

which one is synthesised from simple ones

a)

catabolism

b)

anabolism

c)

aerobic

d)

anaerobic

114.

What is the catabolism?

a)

complex molecules are synthesised from simple ones

b)

complex molecules are broken down into simple ones

115.
A chemical reaction that builds a larger molecule from two smaller molecules
a)
catabolic
b)
anabolic
116.
A catalyst works by
a)
changing the order of the reaction
b)
increasing the temperature
c)
lowering the activation energy
d)
making the activated complex
117.
Enzymes are usually....
a)
Proteins
b)
Lipids
c)
Carbohydrates
d)
None of the Above
118.

Combination of anabolic and catabolic reactions

a)

metastasis

b)

anacatabolism

c)

catabolism

d)

metabolism

119.
A ___________ change alters the size, shape, or composition of a substance.
a)
Physical
b)
Chemical
c)
Endothermic
d)
Exothermic
120.
A ____________ change makes two or more new substances and cannot be changed back.
a)
Physical
b)
Chemical
c)
Endothermic
d)
Exothermic
121.
_______________ is an example of a physical change.
a)
Burning wood
b)
Rotting apple
c)
Cutting paper
d)
Instant ice packs
122.
________________ is an example of a chemical change.
a)
Melting ice
b)
Rotting apple
c)
Folding clothes
d)
Bending metal
123.

A _____________________ is a substance that consists of two or more elements

a)

molecule

b)

monomer

c)

compound

d)

carbon

124.

A compound found mainly in living things is known as an ______________________.

a)

organic compound

b)

inorganic compound

c)

macromolecule

d)

monomer

125.

Which of these is the main element found in organic molecules?

a)

oxygen

b)

carbon

c)

hydrogen

d)

nitrogen

126.

What causes the atoms of a water molecule to “stick” together?

a)

chemical bonds

b)

chemical reactions

c)

monomers

d)

elements

127.

Which of these are types of organic compounds?

a)

proteins

b)

molecules

c)

carbohydrates

d)

lipids

e)

nucleic acids

128.

Carbohydrates, proteins, and nucleic acids are large molecules (__________________) built from smaller molecules (_________________) through dehydration reactions.

a)

macromolecules, monomers

b)

monomers, macromolecules

c)

organic compounds, inorganic compounds

d)

inorganic compounds, organic compounds

129.
When an input (use of) energy is required to move materials through a cell membrane?
a)
nucleic acids
b)
endocytosis
c)
active transport
d)
organic compounds
130.
The Diffusion of water through a cell membrane?
a)
osmosis
b)
endocytosis
c)
exocytosis
d)
compound
131.
Regulate nearly all chemicals reactions in cells?
a)
elements
b)
compound
c)
osmosis
d)
enzyme
132.
Always contain carbon and hydrogen, and usually are associated with living things?
a)
organic compounds
b)
nucleic acids
c)
active transport
d)
inorganic compounds
133.
Fats store energy for later use and cell membranes are made of this?
a)
element
b)
nucleic acids
c)
lipid
d)
compound
134.
Movement of molecules from an area of high concentration to an area of low concentration 
a)
exocytosis
b)
endocytosis
c)
diffusion
d)
passive transport
135.
The process of taking substances into the cell by surrounding it with the cell membrane?
a)
exocytosis
b)
endocytosis
c)
osmosis
d)
double helix
136.
The movement of substances through the cell membrane without the use (input) of energy
a)
endocytosis
b)
passive transport
c)
active transport
d)
diffusion
137.
Made from elements other than carbon?
a)
double helix
b)
nucleic acids
c)
inorganic compounds
d)
organic compounds
138.
Some substances can cross the membrane, while others can not?
a)
element
b)
double helix
c)
selectively permeable
d)
active transport
139.
Used for short term (quick) energy.
a)
carbohydrates
b)
lipids
c)
proteins
d)
nucleic acids
140.
Provides long term energy and insulation,
a)
lipids
b)
carbohydrates
c)
nucleic acids
d)
proteins
141.
Contains DNA and RNA
a)
lipids
b)
carbohydrates
c)
proteins
d)
nucleic acids
142.
Contains a phosphate, sugar and nitrogen base
a)
nucleic acid
b)
lipid
c)
carbohydrate
d)
protein
143.
Building blocks of the body, hair , muscles etc.
a)
protein
b)
nucleic acid
c)
lipids
d)
carbohydrates
144.
The following Function belongs to which Macromolecule? " Forms muscles, skin, & organs and enzymes"  
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acid
145.
Which macromolecule is composed of Carbon, Hydrogen, Oxygen, Nitrogen, and Phosphorus 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
146.
The picture indicates which macromolecule? 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids 
147.
The function of energy storage goes with which macromolecule-
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids 
148.
The function of Structural Enzymes, and the forming of muscles/skin/organs --
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
149.
The following examples Fats, Oils, Phospholipids, and Waxes belong to which macromolecule? 
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acid
150.
In order to make hydrochloric acid, which is required in human digestion, ATP is used to move hydrogen ions from the blood to the stomach lining. This is an example of ___.   
a)
Active Transport
b)
Passive Transport
c)
Osmotic Potential 
d)
Facilitated Diffusion
151.
A cell requires energy to move materials from an area of low concentration, across the cell membrane, to an area of high concentration.  This process is called ___. 
a)
Osmosis
b)
Active transport 
c)
Passive transport 
d)
Facilitative diffusion
152.
In active transport, carrier proteins ___.  
a)
Move substances across the cell membrane without the use of ATP.
b)
Move from low concentration to high concentration by diffusion
c)
Move small molecules through the cell membrane by osmosis 
d)
Move substances from a low concentration to high concentration through the use of energy.
153.
What will most likely occur when a cell is placed into a saline solution that has a higher salt concentration than inside the cell?    
a)
Water molecules will move into the cell
b)
Salt molecules will move out of the cell 
c)
Salt molecules will move until the salt concentration is the same inside and outside the cell 
d)
Water molecules will move until the salt concentration is the same inside and outside of the cell.
154.
Question: Which means of particle transport is shown in the figure above?
a)
active transport
b)
facilitated diffusion
c)
diffusion
d)
osmosis
155.
During diffusion, when the concentration of molecules on both sides of a membrane is the same, the molecules will reach dynamic equilibrium and ...
a)
stop moving across the membrane.
b)
move across the membrane to the outside of the cell.
c)
move across the membrane to the inside of the cell.
d)
continue to move across the membrane in both directions.
156.
Question: The dispersal of ink in a beaker of water is an example of
a)
diffusion.
b)
osmosis.
c)
active transport.
d)
endocytosis.
157.
As a result of diffusion, the concentration of many types of substances
a)
always remains greater inside a membrane.
b)
eventually becomes balanced on both sides of a membrane.
c)
always remains greater on the outside of a membrane.
d)
becomes imbalanced on both sides of a membrane.
158.
Diffusion takes place
a)
only through a lipid bilayer membrane.
b)
from an area of low concentration to an area of high concentration.
c)
only in liquids.
d)
from an area of high concentration to an area of low concentration.
159.
Refer to the illustration above. The process shown is called
a)
osmosis.
b)
facilitated diffusion.
c)
active transport.
d)
diffusion.
160.
Question: Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane (as shown in the figure above) against the concentration gradient. How do these molecules get into the cell?
a)
passive transport by diffusion
b)
active transport using ATP (energy)
c)
passive transport by osmosis
d)
phagocytosis
161.

The difference between active and passive transport is that

a)

active transport requires energy to move molecules up a concentration gradient, and passive transport does not.

b)

passive transport requires energy to move molecules up a concentration gradient, and active transport does not.

c)

active transport moves molecules in animal cells, and passive transport moves molecules in plants.

d)

passive transport can only move specific particles across a membrane, and active transport can move any particle.

162.

The word homeostasis means --

a)

a reaction that absorbs energy.

b)

ability to maintain and regulate stable internal conditions of the cell.

c)

process modifying the molecular structure of a protein.

d)

a chemical that increases the rate of a chemical reaction without itself being changed by the reaction

163.

A wilting flower placed in water will be revived as water pressure in the plant cells increases. This change is brought about as a result of what process?

a)

Vessels transporting glucose to cells

b)

Cells pulling in water via osmosis

c)

Carbon dioxide waste eliminated during respiration

d)

Oxygen leaving the cell by transpiration

164.

The ultimate goal of diffusion is to–

a)

create ATP energy for cellular functioning.

b)

move water from high to low concentrations.

c)

reach a state of solute/solution equilibrium.

d)

break down large molecules for absorption.

165.

Which of the following processes do not require energy. Check all that apply.

a)

Diffusion

b)

Osmosis

c)

Active transport

d)

Exocytosis

166.

Oxygen (the dots) is added to the left side of a beaker at the start of the experiment. The picture on the right shows the end of the experiment. The end of the experiment is a good example of

a)

Active Transport

b)

Equilibrium

c)

Endocytosis

167.
Moving from areas of LOW concentration to areas of HIGH concentration is called?
a)
Passive Transport
b)
Active Transport
c)
Diffusion
d)
Osmosis
168.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
169.
Osmosis
a)
diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration
b)
the diffusion of particles from an area of high concentration to an area of low concentration
c)
diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration
d)
the diffusion of particles from an area of low concentration to an area of high concentration

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