Free Printable Unit 1 & 2 - Keystone Review Session

1.

Which macromolecule is used as our main source of energy?

a)

Lipids/Fats

b)

Nucleic Acids

c)

Proteins

d)

Carbohydrates

2.

Which of the following are examples of carbohydrates? (Select all that apply).

a)

Bread

b)

Pasta

c)

Olive Oil

d)

Cheese

3.

Which macromolecule stores energy?

a)

Carbohydrates

b)

Proteins

c)

Lipids/Fats

d)

Nucleic Acids

4.

Match the following

a)

1.

carbohydrate

b)

2.

lipid

c)

3.

protein

5.

DNA and RNA are examples of

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic Acids

6.

What macromolecule is shown?

a)

Protein

b)

Nucleic Acid

c)

Carbohydrate

d)

Lipid

7.

What is the function of nucleic acids?

a)

Short Term Energy

b)

Storing Genetic Information

c)

Long Term Energy

d)

Speeding Up Chemical Reactions

8.

What macromolecule is shown?

a)

Nucleic Acids

b)

Lipids

c)

Proteins

d)

Carbohydrates

9.

What macromolecule is shown?

a)

Carbohydrate

b)

Nucleic Acid

c)

Protein

d)

Lipid

10.

What macromolecule is shown?

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Proteins

11.

What macromolecule is shown?

a)

Lipids

b)

Proteins

c)

Carbohydrates

d)

Nucleic Acids

12.

What macromolecule is shown?

a)

Proteins

b)

Nucleic Acids

c)

Lipids

d)

Carbohydrates

13.

What element if the building block of life?

a)

Carbon

b)

Hydrogen

c)

Oxygen

d)

Nitrogen

14.

Which macromolecule stores energy, insulates us, and makes up the cell membrane?

a)

lipids

b)

proteins

c)

carbohydrates

d)

nucleic acids

15.

All polymers are made up of...

a)

monosaccharides

b)

monomers

c)

proteins

d)

None of these

16.

The most important element that is the backbone of all biological molecules

a)

carbon

b)

nitrogen

c)

phosphorus

d)

sulfur

17.

Which major macromolecule is being represented in this image?

a)

carbohydrate

b)

lipid

c)

protein

d)

nucleic acid

18.

The element _______is found in all of the organic compounds.

a)

Iron

b)

Nitrogen

c)

Carbon

d)

Oxygen

19.

Which macromolecule is shown?

a)

lipid

b)

protein

c)

nucleic acid

d)

carbohydrate

20.

Carbohydrates are made of...

a)

C H O

b)

C H O N

c)

C H O N P

d)

C H O N S

21.

Lipids are made of...

a)

C H O

b)

C H O N

c)

C H O N P

d)

C H O N S

22.

Proteins are made of...

a)

C H O

b)

C H O N

c)

C H O N P

d)

C H O N S

23.

Is found in the cell membrane as a bilayer.

a)

lipids

b)

protein

c)

nucleic acid

d)

carbohydrate

24.

Where does the energy from our food originally come from?

a)

the Sun

b)

chemical reactions

c)

carbohydrates

d)

mitochondria

25.

(a) is water droplets sticking to each other. (b) is water droplets sticking to other surfaces.

Choose from the below words

cohesion

adhesion

26.

_____________ is what allows water to flow upwards away from gravity, such as through roots and stems of plants.

a)

salinity

b)

cohesiom

c)

buoyancy

d)

capillary action

27.

Water has a very high ______________, causing it to warm up very slowly.

a)

temperature

b)

heat specific heat

c)

cold index

d)

altitude

28.

What kind of molecule is water?

a)

Ionic

b)

Polar Covalent

c)

Nonpolar Covalent

d)

Metallic

29.

What is the correct chemical formula for water?

a)

H₂O

b)

HO₂

c)

H₂O₂

d)

₂H₁O

30.

Which of the following is an example of COHESION?

a)

water sticking to water

b)

water sticking to glass

c)

oil sticking to plastic

d)

hydrogen sticking to oxygen

31.

Why does ice float?

a)

water expands when it freezes, making ice less dense than water

b)

water compacts when it freezes, making ice more dense than water

c)

hydrogen bonds in water push the ice to the surface

d)

ice is afraid of water, and avoids it

32.

What are the bonds called between a slightly positive hydrogen in a polar molecule and a negatively charged atom?

a)

Hydrogen Bonds

b)

Water Bonds

c)

Covalent Bonds

d)

Bail Bonds

33.

Match the following

a)

cohesion

1.

water sticking to other water molecules

b)

adhesion

2.

water sticking to other surfaces

c)

high specific heat

3.

water takes a longer time to boil

d)

hydrogen bond

4.

bond that forms between water molecules

e)

polar

5.

unequal sharing of electrons

34.

Macromolecules are broken apart through (a) and polymers are formed through (b)

Choose from the below words

hydrolysis reactions

dehydration reactions.

35.

Match the following monomers with their correct polymers

a)

monosaccharides

1.

carbohydrates

b)

amino acids

2.

proteins

c)

fatty acids

3.

lipids

d)

nucleotides

4.

nucleic acids

36.

With what 3 letters do enzymes typically end?

a)

-ose

b)

-ase

c)

-ese

d)

-tic

37.

An enzyme speeds up a reaction by

a)

lowering the activation energy.

b)

raising the activation energy.

c)

releasing energy.

d)

absorbing energy.

38.

Based on the graph, what temperature does this enzyme work best?

a)

15 C

b)

40 C

c)

30 C

d)

47 C

39.

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.

40.

Any substance that is acted upon by an enzyme is called a(n)?

a)

Coenzyme

b)

Substrate

c)

Vitamin

d)

Polypeptide

41.

Enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the

a)

enzyme substrate complex.

b)

reaction site.

c)

active site.

d)

lock and key.

42.

What makes an enzyme substrate specific?

a)

Size

b)

Shape

c)

Name

d)

Location it is found in

43.

What happens to the pepsin enzyme in alkaline conditions

a)

The reaction rate increases

b)

The enzyme collides with more substrate

c)

The enzyme will denature and no longer work

d)

The shape of the enzyme does not change and still has activity

44.

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.

45.

What is the purpose of an enzyme?

a)

give permission for the reaction

b)

raise activation energy

c)

speed up reactions

d)

control how many reactions occur

46.

A possible explanation to a problem that has not yet been tested.

a)

data

b)

theory

c)

hypothesis

d)

fact

47.

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.

a)

experimental group

b)

control group

c)

data

d)

variables

48.

This variable in an experiment is the one being deliberately changed by the scientist.

a)

dependent variable

b)

independent variable

c)

data

d)

control group

49.

What step does every scientific experiment begin with?

a)

hypothesis

b)

question/problem

c)

procedures

d)

conclusion

50.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is (a)

Choose from the below words

The type of plant

The amount of sunlight

The type of music

The type of liquid

51.

Testing a hypothesis often involves a(n):

a)

answer

b)

experiment

c)

problem

d)

safety check

52.

A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?

a)

heart rate

b)

type of exercise

c)

amount of exercise

d)

time of day exercise occurs

53.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?

a)

Type of plant, amount of music, and sunlight

b)

Water, apple juice, milk

c)

Plant growth

54.

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

a)

The type of plant

b)

The amount of sunlight

c)

The type of music

d)

The type of liquid

55.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.What was controlled? (a)

Choose from the below words

The Song

The Reed

The Applause

56.

Squidward found new reeds to tryout for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each reed. The results were put in the table.What was the independent variable? (a)

Choose from the below words

The Song

The Reed

The Applause

57.

The easy way to pick out an experiments responding (DV) variable is to look for:

a)

What was purposefully changed

b)

Number of trials

c)

What's being measured

d)

The test group

58.

Match the following vocabulary terms with their correct definitions

a)

Scientific Law

1.

statement that describe some aspect of the universe

b)

Scientific Theory

2.

statement that explains some aspect of the universe

c)

Hypothesis

3.

a testable statement that makes a prediction

d)

Observation

4.

what you see or hear for yourself

e)

Inference

5.

idea or thought you form based on observations

59.

Order the items from smallest level of organization to highest.

a)

atom

b)

molecules

c)

organelle

d)

cell

e)

tissue

1)

2)

3)

4)

5)

60.

Place the following characteristics on the Venn Diagram

a)has ribosomes

b)smaller in size/less complex

c)larger in size/more complex

d)contains no nucleus

e)contains a nucleus

f)contains organelles

g)has a cell membrane

1

2

3

4

5

6

7

1)

2)

3)

4)

5)

6)

7)

61.

The basic unit & structure of all living things is the (a) .

62.

Both prokaryotic and eukaryotic cells contain (more than 1 answer)

a)

nuclei

b)

ribosomes

c)

cell membranes

d)

cytoplasm

e)

DNA

63.

Plant cells and animal cells are both (a) cells. (b) cells contain cell walls that offer them more support. They also have (c) that hold water & nutrients for the cells.

Choose from the below words

eukaryotic

Plant

vacuoles

lysosomes

Animal

prokaryotic

64.

Cell membranes are mostly made up of

a)

phospholipids

b)

cholesterol

c)

proteins

d)

glycoproteins

65.

Label the regions of the phospholipid.

a)hydrophobic

b)hydrophilic

1

2

1)

2)

66.

Label the plant cell to the right:

a)vesicle

b)ribosome

c)cytoplasm

d)vacuoles

e)nucleus

f)mitochondria

g)Rough ER

h)Smooth ER

1

2

3

4

5

6

7

8

1)

2)

3)

4)

5)

6)

7)

8)

67.

Match the following organelles to their correct function

a)

Rough ER

1.

packages & modifies proteins

b)

Smooth ER

2.

makes lipids, stores Ca+

c)

Ribosome

3.

makes proteins

d)

Lysosomes

4.

digests waste in cells

e)

Mitochondria

5.

makes ATP through Cellular Respiration

68.

Plant cells contain (a) that make sugar for the plant. They can be found in the (b) of the cell and have stacks of (c) inside of them.

Choose from the below words

chloroplasts

cytoplasm

granum

chlorophyll

thylakoids

mitochondria

nucleus

69.

What organelle is pictured to the left?

a)

Rough ER

b)

Golgi Apparatus

c)

Smooth ER

d)

Nuclues

70.

A Vacuole can temporarily store materials it is found in _____ and ____.

a)

plants and animals

b)

reptiles and anphibians

c)

dogs and cats

d)

fruits and vegetables

71.

Plasma (Cell) Membrane is found in Prokaryotes and Eukaryotes and ______.

a)

makes food for the cell

b)

gives sturcture to the cell

c)

controls what enters and exits the cell

d)

helps store material

72.

Nucleolus is found inside the nucleus, of Eukaryotes only, and makes _____.

a)

ribosomes

b)

cilia

c)

flagella

d)

prokaryotes

73.

Centrioles are found only in animal cells. They ____.

a)

Help with cell division

b)

make the ribosomes

c)

carry out chemical reactions and transports materials

d)

are used for locamotion

74.

All cells come from___________ cells.

a)

pregnant

b)

pre-existing

c)

paternal

d)

pin size

75.

If it does not rain for a long period of time, plants’ leaves will begin to wilt or sag. They have used up the water that they stored in their ___________

a)

Vacuole

b)

Chloroplast

c)

Mitochondria

76.

Which of the following are in the correct order?

a)

organ system, cell, organ, tissue, organism

b)

cell, organ, tissue, organ system, organism

c)

cell, tissue, organelle, organ system, organism

d)

cell, tissue, organ, organ system, organism

77.

Which number represents the cell wall?

a)

6

b)

5

c)

8

d)

2

78.

This cell has circular DNA floating in the cytoplasm.

a)

Prokaryotic

b)

Eukaryotic

c)

Both

Unit 1 & 2 - Keystone Review Session

Total questions: 78

Worksheet time: 1hrs 23mins

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