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Biology G 12 Final Revision

Total questions: 129

Worksheet time: 1hrs 22mins

Name
Class
Date
1.

Enzymes are _____________?

a)

Hydrocarbons

b)

Hormones

c)

Lipids

d)

Proteins

2.

What is activation energy

a)

The energy released after chemical reactions

b)

The energy required to activate an enzyme

c)

Energy absorbed by chemical reactions

3.
An enzyme speeds up a reaction by
a)
lowering the activation energy.
b)
raising the activation energy.
c)
releasing energy.
d)
absorbing energy.
4.
Which of the factors does NOT affect enzymatic activity?
a)
Temperature
b)
pH
c)
Concentration
d)
Color
5.
An enzyme is a catalyst.
a)
True
b)
False
6.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
7.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
8.
Which is an example of a solute
a)
soil suspended in water
b)
sugar that is dissolved in water
c)
water that dissolves salt
d)
water with undissolved soil
9.
A chemical reaction is a process by which atoms or groups of atoms in substances are___________
a)
dissolved in other substances
b)
ionized by the loss of protons
c)
mixed together with atoms in other substances
d)
reorganized into different substances
10.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
11.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
12.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
13.
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
14.

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

15.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
16.
A solution has a pH of 7.0.  What would happen to the pH if H ions were added?
a)
pH would go up
b)
pH would go down
c)
pH would stay the same
d)
None of these
17.
A solution has a pH of 7.0.  What would happen to the pH if OH ions were added?
a)
pH would go up
b)
pH would go down
c)
pH would stay the same
d)
None of these
18.
A solution with a pH of 10 is mixed with a solution with a pH of 4.  What would the pH of the mixture most likely be?
a)
10
b)
4
c)
40
d)
7
19.

attractive forces between molecules.

a)

van der Waals force

b)

molecule

c)

compound

d)

isotope

20.

mixtures that can neutralize acids or bases to keep the pH within a particular range.

a)

buffer

b)

pH

c)

polar molecule

d)

solution

21.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
22.
Type of mixture in which all substances are evenly distributed is a?
a)
Solution
b)

Colloid

c)
Solvent
d)

Suspension

23.

Polar molecules have:

a)

Opposite charges at opposite ends

b)

No electrons in the molecule

c)

Even charges at opposite charges

d)

Uneven numbers of protons

24.
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
a)
A solution
b)
A colloid
c)
A suspension
d)
A compound
25.

A solution has a pH of 4. What is this solution?

a)

Neutral

b)

Acidic

c)

Basic

d)

None

26.
Every enzyme has a optimal temperature and pH. True or False?
a)
True 
b)
False
27.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
28.

What is the optimal pH of enzyme A?

a)

8

b)

2

c)

5.7-10

d)

10

29.

What is the optimal pH of enzyme B?

a)

8

b)

2

c)

5.7-10

d)

10

30.
What is being represented by the letter A in the image?
a)
Substrate
b)
Enzyme
c)
Product
d)
Complex
31.
If an enzyme becomes over heated what effect, if any, will the heat have on the enzymatic activity? 
a)
The enzyme will not store much chemical energy.
b)
The enzyme will not be able to catalyze reactions.
c)
The enzyme will lose its net electrical charge.
d)
The enzyme will lose stored genetic information.
32.
Enzymes will make a reaction go _______ and use ______ energy.
a)
faster, less
b)
faster, more
c)
slower, less
d)
slower, more
33.
What happens to an enzyme when it is denatured?
a)
Activation energy is lowered.
b)
It becomes stronger.
c)
It loses its shape.
d)
Activation energy is raised.
34.
In the diagram, what is letter A? 
a)
product
b)
substrate
c)
enzyme-substrate complex
d)
active site
35.

Refer to the picture of water sticking to a leaf; this is occurring because of:

a)

Adhesion

b)

Cohesion

36.

Refer to the picture; the water strider can walk over waters surface. This is occurring due to:

a)

Adhesion

b)

Cohesion

37.
Refer to the picture; this is occurring because of:
a)
Adhesion
b)
Cohesion
38.
Refer to the picture; this is occurring because of:
a)
Adhesion
b)
Cohesion
39.
Water is the universal solvent since it's:
a)
water
b)
such a small molecule 
c)
polar
d)
essential to life
40.
Surface tension is an example of:
a)
Cohesion
b)
Adhesion
c)
H+ bonding & Adhesion
d)
Cohesion & H+ Bonding
41.

Surface tension is the property of water in which...

a)

water molecules at the surface tend to stick together.

b)

water spills easily.

c)

water tends to be see-through.

42.

Describe COHESION.

a)

Water molecules attracted to other substances.

b)

Water molecules climbing upwards against the force of gravity.

c)

Water molecules dissolving many substances because of its polarity.

d)

Water molecules attracted to other water molecules.

43.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-5
d)
1-20
44.

In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?

a)

Both of the solution are bases

b)

Both of the solution are acids

c)

The Baking soda is an acid and the Bleach is a base

d)

The baking soda is a base and the Bleach is an acid.

45.

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

46.

If pure water is added to an acid with a pH of 3, what happens to the pH of the solution?

a)

the pH increases to above 3

b)

the pH decreases to below 3

c)

the pH stays the same at 3

47.

Cells can only work if their enzymes are functioning. What can you infer from the graph?

a)

Cells function best at low pH values

b)

Cells function fine at all pH values

c)

Cells function best at high pH values

d)

Cells do not function well if the pH is too high or too low

48.

Like plants, green algae are photosynthetic eukaryotes.

a)

True

b)

False

49.

plants have cell walls that contain cellulose ( carbohydrates)

a)

True

b)

False

50.

A vascular system allows a plant to grow higher off the ground

a)

True

b)

False

51.

Live in damp environments and get moisture directly from the surface of the soil.

a)

liverworts

b)

roses

c)

sunflowers

52.

A fruit is the mature ovary of a flower.

a)

True

b)

False

53.

All plants are

a)

eukaryotes

b)

unicellular

c)

heterotrophs

d)

prokaryotes

54.

What happens in the phloem?

a)

water moves up from roots

b)

food moves down from leaves

c)

food moves up from roots

d)

water moves down to roots

55.

Gases pass in and out of a leaf through the

a)

phloem

b)

xylem

c)

cuticle

d)

stomata

56.

What is NOT a root function in plants?

a)

to absorb water

b)

to store food

c)

to anchor plants

d)

to produce food

57.

What do plant cells have that animal cells don't?

a)

a nucleus

b)

mitochondria

c)

chloroplasts

d)

cell walls

58.

Which best describes a tap root:

a)

small roots above the ground

b)

many small branching roots

c)

large main root with smaller roots

59.

Rhizoids are not roots because they don't have (a)   tissues.

60.

What do stems do?

a)

support leaves and flowers

b)

carry water and minerals

c)

store food and water

d)

anchor the plant in the soil

61.

Nonvascular plants do not have _____________________ for transport.

a)

specialised leaves

b)

specialised roots

c)

specialised tissues

d)

specialised stems

62.
Collenchyma, parenchyma, and sclerechyman are examples of plant...
a)
cells
b)
fibers
c)
hormones 
d)
tissues
63.
transport food and water throughout the plant
a)
ground tissues
b)
meristematic tissues
c)
vascular tissues
64.
produce new cells it increase plant length 
a)
ground tissues
b)
meristematic tissues
c)
vascular tissues
65.
what's the purpose of the xylem?
a)
to bring the food through the stem
b)
to capture sunlight
c)
produce pollen
d)
to bring the water through the stem
66.
The two structures that limit transpiration  are known as
a)
Guard cells and xylem
b)
Stomata and guard cells
c)
xylem and phloem
d)
stomata and phloem
67.

The anther and filament make up the stamen. What is their primary function

a)

Pollen production

b)

Egg development

c)

Pollen transfer

68.
Which part produces sperm enclosed in pollen?
a)
A
b)
B
c)
C
d)
E
69.

have diverse functions such as photosynthesis

a)

Parenchyma cells

b)

Collenchyma cells

c)

Sclerenchyma cells

70.
Small openings called ______ are found on the underside of leaves and allow gases to enter or leave the plant cells.
a)
Phloem
b)
Chloroplasts
c)
Xylem
d)
Stomata
71.
The process of photosynthesis takes place in organelles (part of cell) called ______.
a)
Phloem
b)
Xylem
c)
Stomata
d)
Cholorplasts
72.
What tissue type defends the plant from physical damage and pathogens?
a)
Ground tissue
b)
Protective tissue
c)
Vascular tissue
d)
Dermal tissue
73.

Which Tissue is present on the tip of the plants ?

a)

Intercalary Meristem

b)

Lateral Meristem

c)

Aplical Meristem

d)

Parenchyma

74.

Which tissue is made up of dead cells ?

a)

Parenchyma

b)

Sclarenchyma

c)

Eidermis

d)

Phloem

75.

What are the levels of organization in plants?

a)

Plants have cells, but not tissues.

b)

Plants are made up of cells, tissues, organs, and organ systems

c)

Plants contain cells and tissues, but not organs.

76.

Tissues commonly found in the fruit wall of nuts

a)

Parenchyma

b)

Sclerenchyma

c)

Collenchyma

77.
The tip of the root is called the ...
a)
Root force
b)
Root guard
c)
Root shield
d)
Root cap
78.

This part of the plant is packed with chloroplasts

a)

Dermal tissue

b)

Chlorophyll

c)

Sapwood

d)

Mesophyll

79.
What is E pointing to?
a)
waxy cuticle
b)
stomata
c)
upper epidermis
d)
cuticle
80.

What is the name of the elongated, packed cells (part G) directly under the upper epidermis?

a)

Palisade cells

b)

Guard cell

c)

Spongy layer

d)

Lower epidermis

81.

What is letter "D" pointing to?

a)

upper epidermis

b)

palisade mesophyll

c)

spongy mesophyll

d)

bundle sheath

82.

The outermost layer of CELLS of the leaf is the

a)

cuticle

b)

epidermis

c)

spongy mesophyll

d)

bundle sheath

83.
What is the outer most layer of root ? 
a)
epidermis
b)
cortex
c)
periyicle
d)
xylem
84.

Amino acids are the monomers, or building blocks, of _________ .

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

85.

Monosaccharides/simple sugars are the monomers, or building blocks, of _________ .

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

86.

Nucleotides are the monomers, or building blocks, of _________ .

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

87.

Glycerol and fatty acids are the monomers, or building blocks, of _________ .

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

88.

_________ are used to store the cell's genetic information.

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

89.

_________ are used to speed up reactions, help build muscle, and are part of the immune system

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

90.

Fill in the blank: __________compounds contain carbon and are found in organisms

a)

organic

b)

non organic

c)

living

91.

Which is FALSE?

a)

simple sugars are monosaccharides.

b)

DNA is made up of nucleotides.

c)

Proteins are made of amino acids.

d)

Monomers are made of polymers.

92.

Fatty acids are the monomer of carbohydrates.

a)

True

b)

False

93.

Monosaccharides are the monomers of carbohydrates.

a)

True

b)

False

94.

A polysaccharide is made up of

a)

one monosaccharide

b)

two monosaccharides

c)

more than two monosaccharides

95.

What is the role of proteins in living organisms?

a)

to provide energy

b)

long-term energy storage

c)

tissue growth

d)

to store and transmit genetic information

96.

Which term best describes this macromolecule?

a)

polysaccharide

b)

monosaccharide

c)

amino acid

d)

nucleic acid

97.

Which term best describes this organic molecule?

a)

phospholipid

b)

cholesterol

c)

unsaturated fatty acid

d)

saturated fatty acid

98.

Which molecules is a long polymer that consists of a single strand of nucleotides?

a)

RNA

b)

protein

c)

polysaccharide

d)

triglyceride

99.

What are the reactants in this chemical reaction?

a)

H2CO3

b)

H2O

c)

CO2 + H2O

d)

CO2

100.

The reaction shown below is knows as what type of reaction

a)

exothermic

b)

endothermic

c)

activation

d)

enzymes

101.

Which statement best describes what happens to the enzyme when the temperature of the reaction reaches 63 °\degree  C?

a)

The enzyme is used up and the reaction reverses.

b)

The enzyme continues to increase the rate of the reaction. 

c)

The enzyme changes shape and can no longer speed up the reaction. 

d)

The enzyme begins to slightly decrease the rate of the reaction .

102.

The substances that are formed during a chemical reaction are the

a)

reactant

b)

product

c)

active site

d)

substrate

103.

What is the energy required to get a reaction started called?

a)

adhesion energy

b)

chemical energy

c)

activation energy

d)

cohesion energy

104.

Select the correct compound ratio for carbohydrates

a)

1 carbon : 2 hydrogen : 1 oxygen (CH2O)n

b)

2 carbon : 1 hydrogen : 2 oxygen (C2HO2)n

c)

1 carbon : 1 hydrogen : 2 oxygen (CHO2)n

d)

1 carbon : 2 hydrogen : 2 oxygen (CH2O2)n

105.

Select all of the following elements that make up lipids

a)

carbon

b)

nitrogen

c)

hydrogen

d)

oxygen

106.

Essential amino acids are considered essential because you

a)

can replenish them in your system quickly

b)

need to obtain them from your diet

c)

are the only ones needed to survive

d)

control all other amino acid function

107.

Endo means in or _______.

a)

absorbed

b)

released

108.

Exo means out or ________.

a)

absorbed

b)

released

109.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
110.
Is photosenthysis an Exothermic or an Endothermic reaction?
a)
Endothermic
b)
Exothermic
111.

Which am I? (soil)

a)

Homogeneous mixture

b)

Heterogenous mixture

112.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
113.

How are suspensions and colloids different?

a)

Suspensions settle out and colloids do not settle.

b)

Colloids settle out and suspensions do not settle.

c)

Suspensions dissolve and colloids do not.

d)

Colloids dissolve and suspensions do not.

114.

_______ is a mixture in which particles will settle out.

a)

suspension

b)

colloid

c)

compound

d)

solvent

115.

The movement or growth of a plant in response to light

a)

Thigmotropism

b)

Geotropism

c)

Phototropism

d)

Hydrotropism

116.

The growth response to touch

a)

Thigmotropism

b)

Geotropism

c)

Phototropism

d)

Hydrotropism

117.

When the plant grows toward the light.

a)

Negative hydrotropism

b)

Positive geotropism

c)

Negative phototropism

d)

Positive phototropism

118.
When something is 'water fearing' it is....
a)
Hydrophobic
b)
Hydrophilic 
c)
Hydroelectric 
d)
Hydrochloric
119.

If a surface absorbs and attracts water molecules it is....

a)

clear

b)

a leaf

c)

hydrophobic

d)

hydrophilic

120.
A phospholipid has 2 parts. What are they called? 
a)
Hydrophilic Head, Hydrophobic Tail 
b)
Hydrophobic Head, Hydrophilic Tail 
121.
The phospholipid bilayer comprises what part of the cell?
a)
cytoplasm
b)
cell membrane
c)
cytoskeleton
d)
nuclear membrane
122.
Which biomolecule is mainly hydrocarbons and therefore very hydrophobic?
a)
carbohydrate
b)
nucleic acid
c)
protein
d)
lipid
123.

Asexual reproduction requires

a)

Only one parent to produce offspring

b)

Two parents to produce offspring

c)

A combination of parents to produce offspring

d)

Two clones to produce offspring

124.
Sponges belong to which group of animals?
a)
Vertebrates
b)
Invertebrates
125.

The animal's digestive tract forms from the _______.

a)

endoderm

b)

mesoderm

c)

ecotoderm

d)

protostome

126.

The embryo layer that forms the skin and nervous tissue is the _____.

a)

endoderm

b)

mesoderm

c)

ectoderm

d)

deuterostome

127.

Embryonic structure of an animal that consists of TWO cell layers

a)

blastula

b)

gastrula

c)

morula

d)

blastocyst

128.

Single layer of cells surrounding a fluid-filled space that forms during early development

a)

morula

b)

gastrula

c)

blastocyst

d)

blastula

129.
What type of skeleton is shown with this animal?
a)
endoskeleton
b)
exoskeleton

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