Question

Rearrange the following sentences to form a coherent paragraph:

1. This process, known as photosynthesis, is fundamental to life on Earth as it forms the base of most food webs. 2. Plants, algae, and some bacteria possess a unique ability to convert light energy into chemical energy. 3. The captured light energy is then used to synthesize glucose molecules from water and carbon dioxide. 4. It begins with the absorption of photons by chlorophyll pigments within the plant cells.

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

Answer 1

Answer:

B. 2, 1, 4, 3

• Sentence 2 ("Plants, algae, and some bacteria possess a unique ability to convert light energy into chemical energy.") introduces the subject and capability. A paragraph normally begins by telling what or who is being discussed, so this is a natural opening.

• Sentence 1 ("This process, known as photosynthesis, is fundamental to life on Earth as it forms the base of most food webs.") names the process and states its importance. That logically follows the introduction: after saying who can do it, you name the ability and explain why it matters.

• Sentence 4 ("It begins with the absorption of photons by chlorophyll pigments within the plant cells.") moves from the general to the specific by describing how the process starts. This is the first step in the mechanism, so it follows the naming/importance sentence.

• Sentence 3 ("The captured light energy is then used to synthesize glucose molecules from water and carbon dioxide.") completes the explanation by describing the outcome of the initial step, showing the next stage in the sequence.