Cellular Energy

What is the main function of chloroplasts in a plant cell?

• Cellular respiration

• Photosynthesis

• Protein synthesis

• Energy storage

Where in the plant cell are chloroplasts primarily found?

• Cytoplasm

• Nucleus

• Vacuole

• Cell membrane

What is the role of chlorophyll in the process of photosynthesis?

• Store chemical energy and release it as light energy

• Reflect light energy and convert it into chemical energy

• Prevent light energy from reaching the plant cells

• Absorb light energy and convert it into chemical energy

What is the first step of glycolysis?

• Glucose is converted to pyruvate

• Glucose is phosphorylated to glucose-6-phosphate

• Glucose is dephosphorylated to glucose-6-phosphate

• Glucose is converted to fructose-6-phosphate

What is the net gain of ATP molecules produced in glycolysis?

• 0 ATP molecules

• 10 ATP molecules

• 2 ATP molecules

• 5 ATP molecules

What is the significance of NADH in glycolysis?

• It carries high-energy electrons to the electron transport chain

• It is used to store energy in the form of ATP

• It inhibits the production of ATP

• It is a waste product of glycolysis

What is the primary function of light-dependent reactions in photosynthesis?

• Store energy in the form of glucose

• Produce oxygen as a byproduct

• Release carbon dioxide

• Convert light energy into chemical energy

Where do light-dependent reactions take place in the chloroplast?

• Nucleus

• Stroma

• Thylakoid membrane

• Cell wall

What are the products of the Krebs cycle?

• ATP, NADH, FADH2, and carbon dioxide

• Glucose, water, and oxygen

• Lactic acid, ethanol, and acetaldehyde

• Protein, fat, and vitamins

What is the role of the Krebs cycle in cellular respiration?

• It is responsible for muscle contraction

• It regulates body temperature

• It helps in the synthesis of DNA

• It produces energy in the form of ATP