Which of the Following Correctly Describes a Major Difference Between

question 58

Multiple Choice

Which of the following correctly describes a major difference between pheophytins and chlorophylls?

• A) Pheophytins contain iron in their centers while chlorophylls contain magnesium.
• B) Chlorophylls contain iron in their centers while pheophytins contain magnesium.
• C) Pheophytins contain no metal ion in their centers.
• D) Pheophytins aren't at all like chlorophylls, but are quinones.

---

Definitions:

Intrinsic Motivation

The drive to engage in an activity for its own sake and the personal gratification it brings, rather than for some external reward.

Extrinsic Motivation

The drive to perform actions or engage in behaviors due to external rewards or pressures rather than for intrinsic satisfaction.

Intrinsic Locus Control

The belief that individuals can control events that affect them because of traits or abilities they possess.

Extrinsic Locus Control

A belief that external forces or situations beyond one's personal control determine life events and outcomes.