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Photosynthesis, Cellular Respiration and Enzymes

Total questions: 37

Worksheet time: 32mins

Name
Class
Date
1.

Can ALL enzymes catalyze ALL substrates?

a)

Yes

b)

No

2.

Which of the following describes "Anaerobic Respiration"?

a)

Respiration that requires Oxygen to be present

b)

Respiration that does NOT require Oxygen to be present

3.

Which of the following describes "Aerobic Respiration"?

a)

Respiration that does NOT require Oxygen to be present.

b)

Respiration that requires Oxygen to be present.

4.

What gas FROM the atmosphere do plants need for photosynthesis?

a)

Glucose

b)

Oxygen

c)

Carbon Dioxide

d)

ATP

5.

What gas do plants release into the atmosphere?

a)

Glucose

b)

Carbon Dioxide

c)

Oxygen

d)

ATP

6.

What is the main source of energy that plants need to perform photosynthesis?

a)

Glucose

b)

ATP

c)

Light Energy

d)

ADP

7.

What is the main source of energy that plants need to perform Cellular Respiration?

a)

Light Energy

b)

Glucose

c)

Oxygen

d)

Carbon Dioxide

8.

How does the process of photosynthesis compare to the process of cellular respiration?

a)

They are the exact same process. Same reactants and same products.

b)

Organisms that go through photosynthesis CANNOT go through cellular respiration.

c)

Photosynthesis and Cellular Respiration are opposite processes.

d)

What unit is this?

9.

Identify the correct format for a chemical equation:

a)

Products Yield Reactants

b)

Reactants Yield Products

10.

Identify the reactants of Photosynthesis:

a)

Glucose + Oxygen

b)

Carbon Dioxide + Water + Glucose

c)

Glucose + Carbon Dioxide

d)

Carbon Dioxide + Water + Light Energy

11.

Identify the products of Photosynthesis:

a)

Glucose + Oxygen

b)

Carbon Dioxide + Water + Glucose

c)

Glucose + Carbon Dioxide

d)

Carbon Dioxide + Water + Light Energy

12.

How do enzymes affect the activation energy for a chemical reaction?

a)

Enzymes raise the activation energy.

b)

Enzymes lower the activation energy.

13.
The formation of lactic acid in human muscle cells is most closely associated with
a)
muscle fatigue
b)
protein synthesis
c)
an increase in alcohol consumption
d)
an increase in glucose production
14.
The production of alcohol by yeast cells is the
result of
a)
fermentation
b)
aerobic respiration
c)
 budding
d)
dehydration synthesis
15.
ATP is a compound that is synthesized when
a)
chemical bonds between carbon atoms are formed during photosynthesis
b)
energy stored in chemical bonds is released during cellular respiration
c)
energy stored in nitrogen is released, forming amino acids
d)
digestive enzymes break amino acids into smaller parts
16.
Which process is a form of autotrophic nutrition?
a)
transport
b)
regulation
c)
fermentation
d)
photosynthesis
17.
Autotrophs might survive when heterotrophs cannot, because autotrophs are able to
a)
reproduce asexually
b)
become dormant
c)
 exist without respiration
d)
make their own food
18.

What is ATP?

a)

A molecule that stores fat

b)

A molecule that stores genetic information

c)

A molecule that stores enzymes

d)

A molecule that stores energy

19.

Which organelle is responsible for cellular respiration?

a)

Chloroplast

b)

Mitochondria

c)

Lysosome

d)

Nucleus

20.

What are the stages of cellular respiration?

a)

Light Dependent Reactions and Light Independent Reactions

b)

Lactic Acid Fermentation and Alcoholic Fermentation

c)

Glycolysis, Krebs Cycle, and Electron Transport Chain

d)

Interphase and Mitosis

21.

What are the reactants of cellular respiration?

a)

6CO2 and C6H12O6

b)

6O2 and 6H2O

c)

6CO2 and 6H2O

d)

6O2 and C6H12O6

22.

What are the products of cellular respiration?

a)

6CO2 and 6H2O

b)

6CO2 and C6H12O6

c)

6O2 and C6H12O6

d)

6O2 and 6H2O

23.

In the absence of oxygen, the cell can continue to make ATP through which process?

a)

Photosynthesis

b)

Fermentation

c)

Osmosis

d)

Mitosis

24.

A baker uses yeast to make bread dough. This is an example of...

a)

Lactic acid fermentation

b)

Alcoholic fermentation

c)

Aerobic respiration

d)

Photosynthesis

25.

Enzymes are an example of

a)

Lipids

b)

Carbohydrate

c)

Protein

d)

Nucleic Acid

26.
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
27.
Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?
a)
reducing the number of products   
b)
reducing the activation energy
c)
increasing the temperature of the cell
d)
increasing the concentration of reactants 
28.
Any substance that is acted upon by an enzyme is called a(n)?
a)
Coenzyme
b)
Substrate
c)
Vitamin
d)
Polypeptide
29.
Letter C...
a)
active site
b)
enzymes
c)
substrate
d)
products
30.
Letter B...
a)
active site
b)
enzyme
c)
substrate
d)
products
31.
An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 
a)
true
b)
false
32.
Which organelle in the plant cell performs photosynthesis?
a)
Chloroplast
b)
Mitochondria
c)
Nucleus
d)
Cytoplasm
33.
How does carbon dioxide get into the leaves of a plant?
a)
It's absorbed by the roots
b)
It's made in a chemical reaction in the stem
c)
It enters through the stomata
d)
It goes through the flowers
34.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
35.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
36.

Why do leaves change color in the fall?

a)

The chlorophyll turns from green to yellow

b)

The Chlorophyll breaks down and the other pigments in the plant become easier to see

c)

chlorophyll dies and there is no other pigments in the plant

d)

because my momma said so....

37.

Cellular respiration happens

a)

Only in plants

b)

Only in animals

c)

In both plants and animals

d)

In dogs fur

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