Biology 9th Chap 7 : Topic 7 - Maryam Publications

Biology Chapter 7 : Topic 7

Photosynthesis in Plants

1 / 15

What is ATP?

A) Adenosine triphosphate, the energy currency of the cell

B) A type of enzyme

C) A structural protein

D) A genetic material

2 / 15

Why is ATP called the “energy currency” of the cell?

A) It stores and transfers energy in usable form

B) It transports oxygen

C) It forms cell walls

D) It stores genetic information

3 / 15

The energy in ATP is mainly stored in:

A) High-energy phosphate bonds

B) Ionic bonds

C) Hydrogen bonds

D) Peptide bonds

4 / 15

ATP releases energy when it is converted into:

A) Glucose + oxygen

B) DNA + RNA

C) ADP + Pi

D) Protein + amino acid

5 / 15

Which process produces ATP in cells?

A) Cellular respiration

B) Excretion

C) Photosynthesis only

D) Diffusion

6 / 15

ATP is directly used to power:

A) Only respiration

B) Only digestion

C) Cellular activities such as active transport and muscle contraction

D) Only photosynthesis

7 / 15

The full form of ATP is:

A) Adenine tissue phosphate

B) Active transport protein

C) Adenosine triphosphate

D) Amino triphosphate

8 / 15

Which statement correctly describes ATP function?

A) It stores and releases energy in small usable amounts

B) It carries genetic information

C) It is a structural component of cells

D) It stores long-term energy only

9 / 15

What happens when ATP loses one phosphate group?

A) It becomes glucose

B) It becomes DNA

C) It becomes ADP and releases energy

D) It becomes protein

10 / 15

Which organelle is mainly responsible for ATP production?

A) Mitochondria

B) Nucleus

C) Vacuole

D) Ribosome

11 / 15

ATP is continuously recycled in cells because it:

A) Is stored permanently

B) Is unstable and breaks easily

C) Is not used by cells

D) Is rapidly regenerated from ADP

12 / 15

Which type of energy conversion involves ATP?

A) Mechanical energy → Light energy

B) Nuclear energy → Heat energy

C) Chemical energy → Usable cellular energy

D) Sound energy → Electrical energy

13 / 15

Which process uses ATP most directly?

A) Protein synthesis

B) All metabolic activities

C) Cell division

D) All of the above

14 / 15

ATP is considered a short-term energy storage molecule because:

A) It releases energy immediately when needed

B) It cannot be broken down

C) It stores energy permanently

D) It stores energy in DNA

15 / 15

Which statement best summarizes ATP?

A) ATP stores genetic information

B) ATP is the main energy carrier molecule used by cells

C) ATP is only found in plants

D) ATP is a waste product of respiration

Your score is

0%