Put the Following Steps of the Light Reactions in the Correct

question 45

Multiple Choice

Put the following steps of the light reactions in the correct order: 1. Light excites an electron from photosystem I.
2) Light excites an electron from photosystem II.
3) Electrons reduce NADP⁺ to NADPH.
4) Electrons pass through an electron transport chain, which generates a H+ gradient used to make ATP.

• A) 1, 2, 3, 4
• B) 1, 4, 2, 3
• C) 2, 4, 1, 3
• D) 2, 3, 1, 4

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Definitions:

Longitudinal Design

A research design that involves repeated observations of the same variables or groups over a period of time, allowing for the study of changes and development.

Prospective Design

A research design that follows participants forward over a period of time to observe future outcomes.

Cross-sectional Design

A research design that analyzes data from a population, or a representative subset, at a specific point in time to examine relationships between variables.

Observational Study

A research method involving the collection of data without interference with the subjects’ natural environment.