Chapter 8.2, Problem 1NV

Summary Introduction

To determine:

Definition of the terms thylakoid, granum, stroma, pigments, NADP⁺, Calvin cycle, rubisco

Explanation of Solution

Thylakoid: It is the membrane-bound structure where the light-dependent reaction in the photosynthesis process takes place.

Granum: A granum is a stack of thylakoids in the chloroplast which contains light-harvesting structures.

Stroma: The stroma is the fluid present in the chloroplast and the thylakoids and grana are surrounded by the stroma.

Pigments: In plants, pigments are the structures, which absorb the light and give a specific color to the part they are present in.

NADP+ (Nicotinamide adenine dinucleotide phosphate): It is a reducing agent that can accept an electron to form NADPH. In plants, it is produced during the light reactions of photosynthesis and utilized in the Calvin cycle.

Calvin cycle: It is the cycle in which the carbon from carbon dioxide is used to form three carbon sugar molecules.

Rubisco: It is an enzyme involved in the Calvin cycle, it is involved in the carbon fixation during photosynthesis and oxygenation of the resulting compounds at the time of photorespiration.