Question

1. which of the following describes an anabolic reaction? *

glucose is built using energy from atp.
glucose is broken down using energy from atp.
glucose is built, storing energy in atp.
glucose is broken down, storing energy in atp.

1. light absorbing molecules, such as chlorophyll, are known as: *

grana.
pigments.
stomata.
thylakoids.

1. which describes the process of cellular respiration? *

anabolic, breaks molecules into energy
anabolic, builds molecules of stored energy
catabolic, breaks glucose into usable energy
catabolic, builds glucose to store energy

Explanation:

Question 12

Anabolic reactions build complex molecules from simpler ones, requiring energy (often from ATP). Catabolic reactions break down molecules, releasing energy.

• Option 1: Glucose (complex) built using ATP energy – matches anabolic (building, uses energy).
• Option 2: Breaking glucose (catabolic) with ATP energy – inconsistent.
• Option 3: Building glucose but storing energy in ATP – anabolic uses energy, not store in ATP.
• Option 4: Breaking glucose (catabolic) storing energy in ATP – catabolic releases energy to make ATP, but the description here is less accurate than option 1 for anabolic.

• Grana: Stacks of thylakoids in chloroplasts, not light - absorbing molecules.
• Pigments: Molecules that absorb light (e.g., chlorophyll is a pigment).
• Stomata: Pores for gas exchange, not light - absorbing.
• Thylakoids: Membranous structures in chloroplasts, not light - absorbing molecules.

Cellular respiration is catabolic (breaks down molecules) as it breaks glucose into ATP (usable energy).

• Anabolic processes build molecules (opposite of respiration).
• Option 1: Anabolic and breaks molecules – contradictory (anabolic builds).
• Option 2: Anabolic and builds stored energy – respiration is not anabolic.
• Option 3: Catabolic, breaks glucose into usable energy – matches (respiration breaks glucose to make ATP).
• Option 4: Catabolic and builds glucose – respiration breaks glucose, not builds.

Answer:

A. Glucose is built using energy from ATP.

Question 13