Module 15 Terms - Photosynthesis 1: Overview

Question 1

Reduction reactions

Answer 1

Reactions in which a molecule gains both electrons and energy

Question 2

Oxidation reactions

Answer 2

Reactions in which a molecule loses electrons and releases energy

Question 3

Nicotinamide adenine dinucleotide phosphate (NADPH)

Answer 3

An electron carrier that exists in two forms: oxidized (NADP+) and reduced (NADPH).

NADP+ + 2e- + H+ –> NADPH or the other way around
e- is an electron

Question 4

Oxidation-reduction (redox) reactions

Answer 4

A coupled reaction made up of reduction and oxidation reactions. These two always occur together

Question 5

Light reactions

Answer 5

The first stage of photosynthesis in which energy from sunlight is converted into chemical energy

Question 6

Calvin cycle

Answer 6

The second stage of photosynthesis in which the energy generated from light reactions is used to convert an inorganic molecule (CO2) to an organic molecule (a carbohydrate)

Question 7

Photosynthetic electron transport chain

Answer 7

A series of redox reactions where energy from sunlight is used to power the movement of electrons

Question 8

Stroma

Answer 8

The region surrounding the thylakoid