An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct?

C No, all cells need molecules from food and molecules from air to work properly.

A Yes, her cells only work when they have molecules from different types of food.

B No, her muscles do not need molecules from food because all cells make all the molecules they need.

D No, only her stomach cells need food molecules to work properly.

Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of amino acids, normal levels of oxygen molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?

C No, her cells need glucose to react with oxygen to release energy.

A Yes, her cells just need to combine amino acids to release energy.

B No, her cells need to combine glucose into starch molecules to release energy.

D Yes, her cells just need oxygen to release energy.

If a person is breathing normally, which of the following could prevent him from using his body to exercise normally?

C Not eating enough food, because cells need molecules from both food and air to work

A Not getting enough sunlight, because cells need sunlight to function

B Not getting enough sleep, because the body only makes energy for exercise while asleep

D Nothing, because he would be able to exercise normally as long as his cells are getting molecules from the air

Doctors tested a patient to find out what molecules were in his cells. His cells contained normal levels of glucose molecules and amino acid molecules, and low levels of oxygen molecules. Will this patient be able to exercise normally?

D No, his respiratory system is not working; his cells need oxygen to react with glucose, which releases energy.

A Yes, his body is working properly enough to exercise.

B No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.

C No, his body systems are working, but he needs to eat different food; only proteins can react with glucose to release energy.

Raoul ate a meal of oats before seeing his doctor. Oats are made of mostly starch molecules. Raoul feels tired, so his doctor gave him a test and found that Raoul’s cells contained glucose molecules, but they did not contain enough oxygen molecules. Does this explain why Raoul feels tired?

B Yes, his digestive system is breaking down starch molecules, but his respiratory system may not be working properly.

A No, something else must be wrong because his cells have all the molecules they need.

C Yes, his respiratory system is working, but his digestive system is not getting energy from combining glucose molecules.

D Yes, his digestive system is working, but his respiratory system is not breaking down oxygen, so his body stopped making energy.

If someone is eating plenty of starch and their cells have glucose molecules, what other reason could they feel so tired?

They might not be getting enough oxygen molecules.

They might not be getting enough exercise.

They might not be drinking enough water.

They might not be stretching when they get up in the morning.

What is the equation for cellular respiration?

Glucose + Oxygen = Carbon Dioxide + Water + Energy

Glucose + Carbon Dioxide = Energy + Oxygen

Carbon Dioxide+ Water= energy + glucose + oxygen

Oxygen + Glucose = Sunlight + Carbon dioxide

Metabolic Reactions Review

Quiz

•

Science

•

6th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-7, MS-LS1-2, MS-LS1-3

+3

Standards-aligned

Charles Martinez

Used 1+ times

FREE Resource

18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the body's use of molecules for energy and growth

system

starch

metabolism

protein

a group of atoms joined together in a particular way

molecule

system

cell

metabolism

a molecule that organisms get from the air or water around them and use to release energy

proteins

glucose

amino acids

oxygen

the body system that transports molecules to and from all cells of the body

oxygen

respiratory system

digestive system

circulatory system

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

the body system that takes in food and breaks it down

stomach

circulatory system

digestive system

respiratory system

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The job of the respiratory system is to...

take in oxygen and release carbon dioxide

take in food and break it down

transport molecules to and from all cells of the body

make things move or change

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which molecule does not need to be broken down before entering the cell?

proteins

starch

oxygen

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the body's use of molecules for energy and growth

a group of atoms joined together in a particular way

a molecule that organisms get from the air or water around them and use to release energy

the body system that transports molecules to and from all cells of the body

the body system that takes in food and breaks it down

The job of the respiratory system is to...

Which molecule does not need to be broken down before entering the cell?

What does starch get broken down into?

What do proteins get broken down into?

An athlete thinks that she can exercise as long as she eats different types of food because her body just needs different types of food molecules to work properly. Is the athlete correct?

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