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Intro to Biology Exam

Total questions: 80

Worksheet time: 43mins

Name
Class
Date
1.

Flammable material like alcohol should never be dispensed or used near _____.

a)

an open sink

b)

an open flame

c)

another student

d)

a wet surface

2.
What is biology?
a)
The study of mammals.
b)
The study of fish.
c)
The study of living things.
d)
The study of dead things.
3.
Which of the following is NOT a characteristic of life?
a)
DNA
b)
Cells
c)
Water
d)
Grow
4.

What is an example of Homeostasis

a)

Getting a fever

b)

Staying the same body temp

c)

Eating an apple

d)

Sitting in the sun

5.

This is all the chemical reactions that are keeping you alive.

a)

Development

b)

Stimulus

c)

Metabolism

d)

Homeostasis

6.

What property of water is when water sticks to water?

a)

Adhesion

b)

Cohesion

c)

High Specific Heat

d)

Less Dense as a Solid

7.

What property of water is when water sticks to plant material?

a)

Adhesion

b)

Cohesion

c)

High Specific Heat

d)

Less Dense as a Solid

8.

What type of molecule is water?

a)

Ionic

b)

Polar

c)

Covalent

d)

Enzyme

9.

What is this lab safety symbol?

a)

electrical safety

b)

heat safety

c)

poison safety

d)

sharp objects safety

10.

The part of the microscope which moves the stage up and down, and is primarily used for the low power object lens is called the _____. The part of the microscope that is used for focusing on all objective lens is called the _____.

a)

course adjustment knob; fine adjustment knob

b)

fine adjustment knob; course adjustment knob

c)

revolving nose piece; stage clips

d)

stage clips; revolving nose piece

11.

What does CER stand for?

a)

Create, Evaluate, Results

b)

Claim, Evidence, Reasoning

c)

Current, Experiment, Reasoning

d)

Can't, Even, Remember

12.

Oil does not dissolve when placed in water, and things that do not dissolve in water are said to be _____.

a)

hydrophillic

b)

hydrophobic

c)

polar

d)

catalysts

13.

Living things have cells, and this characteristic of life is _____.

a)

response to stimuli

b)

adaptation

c)

organization

d)

reproduction

14.

Biology is the study of living things. What term described any living thing?

a)

evolution

b)

genetic material

c)

homeostasis

d)

organism

15.

A cow eats grass all day. The cows digestive system breaks down the grass and extracts the nutrients from it. Then those nutrients are used to build essential molecules in the cow's body. What characteristic of life best explains this?

a)

All living things are made of cells.

b)

All living things need and use energy.

c)

All living things reproduce.

d)

All living things react and respond to stimuli.

16.

Water is partially negative and partially positive. Molecules with partial charges are called what?

a)

nonpolar

b)

hydrophobic

c)

polar

d)

magnets

17.

What is being represented with the black dotted lines?

a)

oxygen

b)

hydrogen

c)

hydrogen bond

d)

covalent bond

18.

Capillary action is a property of water. What is an example of capillary action?

a)

Water being pulled up from a plants roots to its leaves.

b)

an insect sitting on top of the water's surface.

c)

Salt dissolving in a glass of water.

d)

A drop of rain water on a leaf.

19.

Hydrogen bonds in water molecules are accomplished through the attraction of the partial charges. What is the charge of hydrogen in a water molecule?

a)

positive

b)

negative

c)

neutral

d)

full

20.

Certain insects have the ability to stand on top of ponds an lakes. Which property of water allows this to occur?

a)

adhesion

b)

evaporation cooling

c)

universal solvent

d)

surface tension

21.

This macromolecule is known for providing quick energy, and can also be a structural component in plant cell walls.

a)

lipids

b)

nucleic acids

c)

proteins

d)

carbohydrates

22.

Amylase speeds up the reaction in which starch is broken down into glucose. What kind of molecule is amylase?

a)

lipid

b)

enzyme

c)

steroid

d)

nucleic acid

23.

What kind of macromolecule has these characteristics?

  1. 1. large molecule

  2. 2. cell membranes

  3. 3. nonpolar covalent bond

a)

lipid

b)

protein

c)

carbohydrate

d)

nucleic acid

24.

Which statement best describes the composition and function of proteins in an organism?

a)

Long chains of hydrocarbon used for digestion and respiration.

b)

Sugar and starches that provide energy for metabolic processes.

c)

Fats and oils that are well suited for long term energy storage.

d)

Long chains of amino acids used for building, repairing, and maintenance.

25.

The cell membrane is an essential part of the cell. Which of these macromolecules makes up the cell membrane?

a)

phospholipids

b)

DNA

c)

starch

d)

keratin

26.

Which macromolecule functions in storing and transmitting the instructions to make proteins?

a)

nucleic acids

b)

lipids

c)

carbohydrates

d)

enzymes

27.

Animals such as bears, store most of their excess energy reserves as ____. This is because ____.

a)

glucose; that macromolecule is easy to break down.

b)

fat; that macromolecule stores twice as much energy as carbohydrates per gram.

c)

protein; that macromolecule is a compact source of energy in bodies.

d)

nucleic acids; that macromolecule stores twice as much energy per gram.

28.

What macromolecule is considered the most diverse because it has many purposes within the cells.

a)

lipids

b)

proteins

c)

carbohydrates

d)

nucleic acids

29.

Monosaccharides are the monomer for what macromolecule?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

30.

What temperature does this enzyme have the highest activity?

a)

10 degrees C

b)

30 degrees C

c)

52 degrees C

d)

38 degrees C

31.

What do you think happens to the enzyme at a temperature of 60 degrees C?

a)

The enzyme is at its optimal temperature.

b)

The enzyme is denatured.

c)

The enzyme is being made.

d)

The enzyme becomes a coenzyme.

32.

Kayla has breakfast, it was toast with cinnamon and sugar. Which macromolecule did she consume the most of?

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acids

33.

A researcher discovers a molecule in muscle tissue that is rich in nitrogen, soluble in water, and lacks phosphorus. The molecule also contains carbon, hydrogen and oxygen in uneven ratios. The molecule must be a ____.

a)

protein

b)

fatty acids

c)

nucleic acids

d)

monosaccharide

34.

A starch made of several strands of the monosaccharide glucose, what term would be best to describe the structure of the starch?

a)

phospholipid

b)

polysaccharide

c)

protein

d)

disaccharide

35.

____ are lipids that store energy and are typically composed of multiple building blocks containing 3 fatty acids attached to a glycerol molecule.

a)

fats

b)

polysaccharides

c)

proteins

d)

nucleotides

36.

What is the green part represent in the image?

a)

enzyme

b)

product

c)

active site

d)

substrate

37.

Which of the following correctly identifies the elements found in nucleic acids?

a)

C, H, O, M, P

b)

C, H, O

c)

C, H, O, N, P

d)

C, H, O, S,

38.

Which of the following is not a part of a nucleotide?

a)

sugar

b)

nitrogen base

c)

phosphate

d)

glycerol

39.

In the enzymatic reaction, the ____ is on the left of the arrow while the products are to the right of the arrow.

hydrogen peroxide ----> water + oxygen

a)

enzyme

b)

filtrate

c)

pre product

d)

reactant

40.

Molecules that speed up chemical reactions without being consumed by the reaction are ____.

a)

reactants

b)

catalysts

c)

products

d)

chemical specialist

41.

How do enzymes speed up chemical reactions? Enzymes ____.

a)

lower the activation energy of chemical reactions.

b)

raise the temperature of the cell, speeding chemical reactions.

c)

store ATP, allowing more energy to be used in chemical reactions.

d)

act as miniature transfer trucks, gathering material for chemical reactions, and placing them together.

42.

Proteins differ in the number and type of ____ in the polypeptide chains.

a)

fatty acids

b)

amino acids

c)

nucleic acids

d)

monosaccharides

43.

Enzymes: ____.

a)

are composed of long chains of fatty acids.

b)

can be destroyed by variations in temperature and pH.

c)

are used up in the processes of performing chemical reactions.

d)

raise the amount of energy required for chemical reactions.

44.

Which polymer is represented in the image?

a)

cellulose

b)

polypeptide

c)

DNA

d)

triglyceride

45.

Which characteristic is shown in the image?

a)

Organisms grow and develop

b)

Organisms react to stimuli

c)

Organisms can adapt

d)

Organisms use and obtain energy

e)

Organisms are made up of cells

46.

Which characteristic is shown in the image?

a)

Organisms reproduce

b)

Organisms react to stimuli

c)

Organisms can adapt

d)

Organisms use and obtain energy

e)

Organisms are made up of cells

47.

Which characteristic is shown in the image?

a)

Organisms reproduce

b)

Organisms react to stimuli

c)

Organisms can adapt

d)

Organisms use and obtain energy

e)

Organisms are made up of cells

48.

Which characteristic is shown in the image?

a)

Organisms reproduce

b)

Organisms react to stimuli

c)

Organisms can adapt

d)

Organisms use and obtain energy

e)

Organisms are made up of cells

49.

In the image shown, what is the response?

a)

the plant bending towards the light

b)

the light source

50.

In the image shown, what is the stimulus?

a)

the plant bending towards the light

b)

the light source

51.

Which is NOT an example of adaptation?

a)

camels have humps that store water for the dry days

b)

night animals have special eyes to see in the dark

c)

fishes developed gills to breath underwater

d)

an elephant gives birth to one offspring

52.

Choose the statement(s) TRUE for ALL organisms

a)

have cells

b)

can move

c)

grow or develop

d)

use sunlight to make food

e)

have features that help them adapt

53.
What two elements make up water?
a)
Helium and oxygen
b)
Hydrogen and oxygen
c)
helium and carbon
d)
oxygen and carbon
54.
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.
55.
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
56.
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 specific heat

d)
 Water acts as a buffer.
57.

-A water molecule is composed of 2 H atoms and 1 O atom. What is the chemical equation for water?

a)

HO

b)

H2O

c)

H3O

d)

H2O2

58.
Which is NOT a unique property of water?
a)
Frozen water floats on liquid water.
b)
Water covers most of the Earth’s surface and retains a large amount of heat.
c)
Water molecules stick to each other through hydrogen bonds.
d)
Water cools very rapidly.
59.
What property of water is shown in the picture?
a)
capillary action
b)
surface tension
c)
evaporation
d)
universal solvent
60.

Which part of the microscope moves the stage up quickly?

a)

coarse adjustment knob

b)

fine adjustment knob

c)

diaphragm

d)

rotating nose piece

61.

what part of the microscope changes the objective lens?

a)

coarse adjustment knob

b)

fine adjustment knob

c)

diaphragm

d)

rotating nose piece

62.

what is the total magnification if the ocular lens is 10x and the objective lens is 4x?

a)

40x

b)

400x

c)

4x

d)

4000x

63.

what part of the microscope hold the slide on the stage?

a)

objective lenses

b)

stage clips

c)

rotating nose piece

d)

fine adjustment

64.

What is number 1?

a)

arm

b)

base

c)

light source

d)

stage

65.

What is number 2?

a)

fine adjustment knob

b)

coarse adjustment knob

c)

light source

d)

base

66.

What is number 3?

a)

fine adjustment knob

b)

coarse adjustment knob

c)

stage

d)

diaphragm

67.

What is number 4?

a)

stage

b)

light source

c)

stage clips

d)

rotating nose piece

68.

What is number 5?

a)

base

b)

stage

c)

light source

d)

arm

69.

What is number 6?

a)

diaphragm

b)

light source

c)

stage

d)

stage clips

70.

what is number 7?

a)

diaphragm

b)

light source

c)

stage

d)

arm

71.

What is number 8?

a)

stage

b)

stage clips

c)

base

d)

nose piece

72.

What is number 9?

a)

rotating nose piece

b)

objective lens

c)

ocular lens

d)

adjustment knob

73.

What is number 10?

a)

objective lenses

b)

ocular lens

c)

rotating nose piece

d)

stage

74.

What is number 11?

a)

body tube

b)

ocular lens

c)

nose piece

d)

arm

75.
Which of these is NOT true?
a)
Enzymes can denature (change shape) when the temperature gets too high.
b)
Enzymes can only be used once in a chemical reaction. 
c)
Extreme pH can denature enzymes.
d)
Enzymes speed up chemical reactions. 
76.
At high temperatures enzyme activity declines because of:
a)
Denaturation
b)
Decreased Kinetic Motion
c)
Increased H-Bonding
d)
Dissociation of Ionic Compounds
77.
Most enzymes have the ending:
a)
-ase
b)
-ose
c)
-ic acid
d)
-ate
78.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
79.
The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?
a)
Enzymes increase the energy of the reactants.
b)
Enzymes decrease the energy level of the products.
c)
Enzyme decrease the activation energy of the reaction.
d)
Enzymes reverse the direction of the reaction.
80.

In order to increase the rate of reaction using an enzyme a scientist could.... (Choose all that apply)

a)

Increase the amount of substrate

b)

Decrease the temperature

c)

Increase the temperartue

d)

Introduce a competitive inhibitor

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