Cellular Respiration and ATP

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Questions and Answers

What is the primary role of respiration in cells?

To remove waste products from the cell.
To transport nutrients into the cell.
To get energy by oxidizing foods. (correct)
To store energy for future use.

The overall reaction for respiration involves the conversion of oxygen and carbon dioxide into glucose and water.

False (B)

What is the name of the substance created during respiration that stores most of the released energy?

ATP

ATP is often referred to as the _______ of the cell.

currency Signup and view all the answers

Which molecule has 3 phosphate groups?

ATP (B) Signup and view all the answers

ADP transforms into ATP when energy is needed by the cell.

False (B) Signup and view all the answers

In the respiration reaction, what are the reactants?

glucose and oxygen Signup and view all the answers

When ATP breaks down, it releases energy and turns into _______.

ADP Signup and view all the answers

Which of the following is the correct balanced equation for respiration?

$C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + Heat$ (A) Signup and view all the answers

Respiration only releases energy in the form of ATP.

False (B) Signup and view all the answers

What molecule is formed when ADP gains a phosphate group?

ATP Signup and view all the answers

Food, such as _______, is oxidized during respiration to release energy.

glucose Signup and view all the answers

Which of the following best describes the cyclical relationship between ADP and ATP?

ATP is broken down to release energy and becomes ADP, while ADP gains a phosphate group during respiration to become ATP, thus repeating the cycle. (B) Signup and view all the answers

The primary products of respiration are glucose and oxygen.

False (B) Signup and view all the answers

How many phosphate groups does ADP have?

2 Signup and view all the answers

The process of respiration involves the _______ of food to release energy.

oxidizing Signup and view all the answers

Match the following terms with their descriptions:

Respiration = Process where cells get energy by oxidizing foods ATP = Energy currency of the cell ADP = Molecule with two phosphate groups Signup and view all the answers

What happens to ATP when energy is needed by the cell?

It breaks down and turns into ADP. (B) Signup and view all the answers

Respiration is solely dependent on the presence of sunlight.

False (B) Signup and view all the answers

In the context of energy transfer within a cell, briefly describe the roles of ATP and ADP.

ATP stores and releases energy, while ADP receives energy to form ATP. Signup and view all the answers

Flashcards

What is respiration?

Respiration is when cells get their energy by oxidising foods, such as glucose.

What happens when we respire?

Respiration releases some heat energy, but most of its energy is used to create a substance called ATP.