the term thylakiod was coined by

Options

A. Arnon
B. park and Biggins
C. Menke
D. Willstatter

Answer

**Step-by-Step Solution:**

1. **Identify the Term**: The term in question is "thylakoid."

2. **Determine the Origin**: The term "thylakoid" was coined by a scientist named Menke.

3. **Understand the Context**: Thylakoids are structures found within chloroplasts, which are the organelles responsible for photosynthesis in plant cells.

4. **Describe the Structure of Chloroplasts**: Chloroplasts have a double membrane structure. Inside the chloroplast, there is a fluid-filled space known as the stroma, which is analogous to the matrix in mitochondria.

5. **Explain Thylakoids**: Thylakoids are flattened, coin-like structures that are stacked in groups. When these stacks are formed, they are referred to as "grana."

6. **Connect to Photosynthesis**: Thylakoids contain the necessary components for the light-dependent reactions of photosynthesis, including photosystems I and II.

7. **Mention the Lamella**: The membranes that connect one granum to another are called lamellae.

8. **Summarize the Key Points**: The term "thylakoid" was coined by Menke, and these structures play a crucial role in photosynthesis by housing the light reaction components.

**Final Answer**: The term "thylakoid" was coined by Menke.

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