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Unit 2 Energy OLD

Total questions: 37

Worksheet time: 23mins

Name
Class
Date
1.

Which lettered graph represents the affect of temperature on the rate of photosynthesis?

a)

A

b)

B

c)

C

d)

D

2.

Select all that describe a protein.

a)

structural component of the body

b)

provides transport

c)

nucleotide

d)

amino acids

e)

speeds up chemical reactions

3.

If oxygen is available, many more ATP can be produced.

a)

True

b)

False

4.

Which process requires oxygen?

a)

Glycolysis

b)

Fermentation

c)

Aerobic respiration

d)

Anaerobic respiration

5.

Compounds that contain ________________ are referred to as organic.

a)

Hydrogen

b)

Oxygen

c)

Nitrogen

d)

Carbon

6.

Each subunit in a complete molecule is known as a

a)

polymer

b)

macromolecule

c)

monomer

d)

acid

7.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
8.

What are the four macromolecules?

a)

protein, fat, carbohydrates, DNA

b)

ATP, Carbohydrates, Lipids, Proteins

c)

Nucleic Acids, Proteins, Lipids, Carbohydrates

d)

Starches, Glucose, Cellulose, Fructose

9.

Monomers come together by polymerization to form ______________.

a)

polymers

b)

monomers

c)

glucose

d)

carbon

10.

Beads are to ______________ as a necklace is to _______________.

a)

polymers; monomers

b)

monomers; polymers

11.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
12.

1. What is the main purpose of photosynthesis?

a)

to create energy

b)

to make food

c)

to make Carbon di oxide

d)

to absorb sunlight

13.

2. What gas goes into the plant during photosynthesis?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Hydrogen

14.

Which lettered graph represents the affect of light intensity on the rate of photosynthesis?

a)

A

b)

B

c)

C

d)

D

15.

3. What does a plant release into the air after photosynthesis?

a)

Carbon dioxide

b)

Sugar

c)

Oxygen

d)

Energy

16.

6. Where do plants get the energy for photosynthesis to take place?

a)

Nutrients in the soil

b)

The Sun

c)

Pollination

d)

Chlorophyll

17.

In which way are photosynthesis and cellular respiration similar?

a)

Both processes destroy energy.

b)

Both create energy.

c)

Photosynthesis breaks down sugar while cellular respiration produces sugar.

d)

Both processes transfer energy from one form to another.

18.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
19.

Select all that describe lipids

a)

make up the cell membrane

b)

made of glycerol and fatty acids

c)

long term energy

d)

make up muscles

20.

What is the correct equation for cellular respiration?

a)

oxygen + sugar -> carbon dioxide + water + Energy

b)

carbon dioxide + sugar + Energy -> carbon dioxide + water

c)

carbon dioxide + water -> oxygen + sugar + Energy

d)

carbon dioxide + water + Energy -> oxygen + sugar

21.

What is important about cellular respiration?

a)

It produces energy from the sun.

b)

It forms sugar.

c)

It transforms sugar into a usable form of energy (ATP)

d)

Only plants perform this process.

22.

One molecule needed for cellular respiration is

a)

carbon dioxide

b)

glucose

c)

water

d)

chlorophyll

23.

This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.

a)

photosynthesis

b)

fermentation

c)

cellular respiration

d)

glycolysis

24.

Which statement is true regarding cellular respiration?

a)

The reactants of cellular respiration are identical to the reactants of photosynthesis.

b)

The reactants of cellular respiration are obtained from the products of photosynthesis.

c)

The products of cellular respiration are the same as the products of photosynthesis

d)

Cellular respiration only occurs in autotrophs, photosynthesis occurs only in heterotrophs.

25.

A decrease in the amount of oxygen available will....

a)

not have an effect on the amount of energy produced during cellular respiration

b)

decrease the amount of glucose produced during cellular respiration

c)

cause the amount of water produced during cellular respiration to increase

d)

decrease the amount of energy produced during cellular respiration

26.

All living things go through respiration.

a)

True

b)

False

27.

Select all that describe Nucleic Acids

a)

CHONP

b)

DNA

c)

RNA

d)

Nucleotide

28.
What is a substance called if it speeds up a chemical reaction?
a)
reusable
b)
catalyst
c)
specific
d)
fragile
29.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
30.
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 .
31.

Select all that describes carbohydrates

a)

short term/quick energy

b)

chitin and cellulose are structural

c)

CHON

d)

monosaccharides

32.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
33.

Select all that will affect the rate of photosynthesis.

a)

Oxygen

b)

Carbon Dioxide

c)

Temperature

d)

Water

e)

Light intensity

34.

To store energy you must add a phosphate and to release energy you take away a phosphate.

a)

True

b)

False

35.

Which lettered graph represents the affect of glucose on the rate of respiration?

a)

A

b)

B

c)

C

d)

D

36.

Which lettered graph represents the affect of temperature on the rate of respiration?

a)

A

b)

B

c)

C

d)

D

37.

Which color represents the amount of CO2 in the atmosphere during photosynthesis?

a)

Red

b)

Blue

c)

Neither

d)

Not enough information

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