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Cell Energy Practice

Total questions: 24

Worksheet time: 13mins

Name
Class
Date
1.

Which of the following is NOT classified as a biological macromolecule?

a)

Proteins

b)

Lipids

c)

Nucleic acids

d)

Cells

e)

Carbohydrates

2.

Avery is baking fresh bread at home and notices that the dough rises and forms air bubbles as it sits. Which fermentation process is responsible for making the dough rise and create these air bubbles?

a)

Lactic acid fermentation

b)

Pyruvic acid fermentation

c)

Alcoholic fermentation

d)

Chemical fermentation

3.

Which molecule acts as the main energy currency in cells, allowing them to store and use energy as needed?

a)

DNA

b)

RNA

c)

ETC

d)

ATP

4.

Avery is studying how our bodies get energy from food. She learns that after glucose is broken down into pyruvic acid, there is a special cycle in our cells that takes in pyruvic acid and produces carbon dioxide (CO2), ATP energy, and electron carriers (NADH, FADH2). What is the name of this cycle?

a)

Calvin Cycle

b)

Krebs Cycle

c)

Glycolysis

d)

Electron Transport Chain (ETC)

5.

Which process uses oxygen and glucose to produce carbon dioxide, water, and ATP energy in living organisms?

a)

fermentation

b)

photosynthesis

c)

cellular respiration

d)

glycolysis

6.

Luna is conducting an experiment in her biology class to see how cells produce energy when oxygen is not available. She observes that glycolysis still occurs even without oxygen. Glycolysis is an example of which of the following processes.

a)

an aerobic process

b)

a cyclical process

c)

an anaerobic process

d)

a fast process

7.

Where in the cell does the Krebs cycle primarily take place?

a)

in the cell membrane

b)

in the mitochondrial matrix

c)

in the cell nucleus

d)

in the cytoplasm

8.

During a vigorous workout, Michael feels a burning sensation in his muscles. This sensation is created from

a)

alcoholic fermentation

b)

lactic acid fermentation

c)

photosynthesis

d)

glycolysis

9.

What is the total number of ATP molecules produced from one molecule of glucose during cellular respiration?

a)

About 36 ATP

b)

About 1 to 2 ATP

c)

About 2 ATP

d)

About 100 ATP

10.

How do the products of the light-dependent reactions contribute to the process of the light-independent reactions in photosynthesis?

a)

They provide the carbon dioxide needed for sugar production.

b)

They supply the ATP and NADPH required to power the synthesis of sugars.

c)

They directly produce glucose, which is then broken down in the light-independent reactions.

d)

They absorb sunlight to help the light-independent reactions occur.

11.
The Light-Independent Reaction aka Calvin Cycle occurs in the _________ of the chloroplast.
a)
Stroma
b)
Thylakoid
c)
Granum
d)
Chlorophyll
12.

While helping Hannah with her science homework, she wonders what the light absorbing pigment of green plants is called. Can you help her answer?

a)

thylakoid

b)

chlorophyll

c)

carotene

d)

chloroplast

13.
What is the name of the reaction in photosynthesis that takes water and sunlight and makes Oxygen (O2)?
a)
Calvin Cycle
b)
Krebs Cycle
c)
Light-dependent reactions
d)
Light-independent reactions
14.

Sophia is learning about photosynthesis in her science class. She writes down the reaction equation: H2O + CO2 + light energy → Glucose (C6H12O6) + O2. Her teacher asks her, in this equation, the sugar and the oxygen are called the ___________.

a)

Products (outputs)

b)

Reactants (inputs)

15.

Mia is learning about different types of organisms in her science class. She notices that plants, algae, and some bacteria can make their own food using sunlight. What type of organisms are these?

a)

Autotrophs

b)

Consumers

c)

Heterotrophs

d)

Abiotic

16.

The stacks of thylakoids found inside chloroplasts are known as ____________?

a)

Stroma

b)

Granum

c)

Pigments

d)

Membranes

17.
Photosynthesis is a process that
a)
Converts Glucose energy into ATP energy
b)
Uses sunlight energy to produce glucose.
c)
Releases CO2 into the atmosphere
d)
Only takes place at night
18.
Select the best statement that describes how we see an object that is green.
a)
The green object is reflecting most colors, but absorbing the green light
b)
The object is reflecting white light, and absorbing green light
c)
The green object is reflecting green, and absorbing all other colors
d)
The object is really black, and all light is being absorbed.
19.

Which of the following is the main product of cellular respiration that cells use for their activities?

a)

ATP/energy

b)

Glucose

c)

Carbon dioxide

d)

Amino acids

20.

After glycolysis, what is the fate of pyruvic acid if oxygen is not available in the cell?

a)

It enters the mitochondria for the Krebs cycle.

b)

It undergoes fermentation to produce energy.

c)

It moves to the chloroplast for photosynthesis.

d)

It is converted into glucose.

21.
In what conditions would fermentation occur?
a)
Photosynthetic Conditions
b)
When no oxygen is present
c)
When oxygen is present
d)
During decomposition
22.

At a local science fair, students are asked to identify which two types of organisms are known to carry out lactic acid fermentation. Which pair should they choose?

a)

yeast and humans

b)

human

c)

bacteria and humans

d)

bacteria

23.
What are the two types of fermentation?
a)
Lactic acid and alcoholic (ethanol)
b)
Glycolysis and aerobic
c)
Krebs and ETC
d)
No oxygen and oxygen
24.
The process carried out by yeast that causes bread to rise is
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
cellular respiration
d)
yeast mitosis