Quiz about Cellular Energetics

Question 1

In which organelle does cellular respiration take place?

Accepted Answer

mitochondria

Answer

chloroplasts

Answer

nucleus

Answer

endoplasmic reticula

Question 2

What are the reactants of cellular respiration?

Accepted Answer

$$C_6H_{12}O_6$$ + $$O_2$$

Answer

$$CO_{2_{ }}$$ + $$H_2O$$

Answer

$$C_6H_{12}O_6\ +\ H_2O$$

Answer

$$C_6H_{12}O_6\ +\ CO_2$$

Question 3

What are the products of cellular respiration?

Accepted Answer

$$CO_{2_{ }}$$ + $$H_2O$$

Answer

$$C_6H_{12}O_6$$ + $$O_2$$

Answer

$$C_6H_{12}O_6\ +\ H_2O$$

Answer

$$C_6H_{12}O_6\ +\ CO_2$$

Question 4

The main purpose of Cellular Respiration is to

Accepted Answer

make ATP

Answer

make carbon dioxide

Answer

make water

Answer

make glucose

Question 5

The equation represents what process?

Accepted Answer

cellular respiration

Answer

photosynthesis

Answer

fermentation

Question 6

What is the full name of the molecule ADP?

Accepted Answer

Adenosine Diphosphate

Answer

Adenine Diphosphate

Answer

Adenine Triphosphate

Answer

Adenosine Triphosphate

Question 7

What are the products of photosynthesis?

Accepted Answer

$$C_6H_{12}O_6$$ + $$O_2$$

Answer

$$CO_{2_{ }}$$ + $$H_2O$$

Answer

$$C_6H_{12}O_6\ +\ H_2O$$

Answer

$$C_6H_{12}O_6\ +\ CO_2$$

Question 8

In which organelle does photosynthesis take place?

Accepted Answer

chloroplasts

Answer

mitochondria

Answer

nucleus

Answer

endoplasmic reticula

Question 9

Why is the hydrolysis of ATP important to a cells function?

Accepted Answer

It releases energy that can be used to power cellular processes

Answer

It provides a source of phosphate for the cell.

Answer

It absorbs excess hydrogen ions in the cell to regulate the internal pH

Answer

It acts as a catalyst for chemical reactions in the cell.

Question 10

What process creates the proton motive force in cellular respiration?

Accepted Answer

The electron transport chain

Answer

The hydrolysis of ATP

Answer

Chemiosmosis

Answer

The Citric Acid cycle

Question 11

What is the function of NAD in cellular respiration?

Accepted Answer

It acts as an electron and proton acceptor to carry energy to the electron transport chain

Answer

It catalyzes the conversion of glucose into ATP

Answer

It provides inorganic phosphate needed by ATP synthase

Answer

It is the coenzyme needed to convert glucose into pyruvate

Question 12

When will lactic acid build up in animal cells?

Accepted Answer

When there is not enough oxygen to fuel the mitochondria

Answer

When there is excess carbon dioxide

Answer

When the cells produce too much ATP

Answer

When the cells need to remove excess oxygen to avoid damaging their components.

Question 13

Why do plants not store 100% of the light energy absorbed by chlorophyll in glucose molecules?

Accepted Answer

Most of the energy is used to power the reaction or is lost as heat

Answer

Plants do not have a high energy requirement, so they do not need to convert 100% of the energy

Answer

The energy is used to power ATP synthase proteins on the thylakoid membrane

Answer

The remaining energy is used actively transport oxygen out of the cell.

Question 14

What is the best reason that plants do not perform photosynthesis at night?

Accepted Answer

They do not have an energy source to power the light reactions

Answer

They close their stomata at night to rest

Answer

Only a few types of plants are nocturnal

Answer

There is less carbon dioxide released into the air at night

Question 15

What are the net products of photosynthesis?

Accepted Answer

C₆H₁₂O₆ and 6 O₂

Answer

6 CO₂, 6 H₂O, Energy

Answer

6 O₂ and 6 H₂O

Answer

6 CO₂ and C₆H₁₂O₆

Question 16

What is the primary molecule that stores energy in cells?

Accepted Answer

ATP

Answer

NADH

Answer

FADH2

Answer

Glucose

Question 17

Which process in cellular respiration produces the most ATP?

Accepted Answer

Electron Transport Chain

Answer

Glycolysis

Answer

Krebs Cycle

Answer

Fermentation

Question 18

In which part of the cell does glycolysis occur?

Accepted Answer

Cytoplasm

Answer

Mitochondrial matrix

Answer

Inner mitochondrial membrane

Answer

Nucleus

Question 19

What is the role of oxygen in cellular respiration?

Accepted Answer

To act as a final electron acceptor in the electron transport chain

Answer

To provide energy for glycolysis

Answer

To convert glucose into pyruvate

Answer

To transport electrons to the mitochondria

Question 20

Which of the following is a product of the Krebs Cycle?

Accepted Answer

NADH

Answer

Lactic acid

Answer

Glucose

Answer

Oxygen

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