Question

1. which of the following statements about organelles is not true? a. each organelle carries out only one role in the life functions of the cell. b. there are some organelles found in plant cells that are not in animal cells. c. each organelle carries out functions similar to the way organs function in a large organism. d. there are organelles in plant and animal cells that work directly with other organelles. 7. cells have a small size to efficiently move materials into and out of the cell across the cell membrane. which of the following best describes why cells move...

Explanation:

Question 6

• Option A: Organelles can have multiple roles in the cell (e.g., mitochondria are involved in energy production, apoptosis, etc.), so this statement is not true.
• Option B: Plant cells have organelles like chloroplasts and large central vacuoles that are not in animal cells, so this is true.
• Option C: Organelles function similarly to organs in a large organism (each has a specific function contributing to the whole), so this is true.
• Option D: Organelles in plant and animal cells (like ribosomes, mitochondria) work together with other organelles, so this is true.

Cells have a small size to maximize the surface area - to - volume ratio. A larger surface area relative to volume allows for more efficient diffusion and transport of materials (nutrients in, wastes out) across the cell membrane. As a cell grows, its volume increases faster than its surface area, so a small size ensures that the surface area is sufficient to service the volume of the cell.
(If the question was different, the explanation would change, but based on the visible part about "cells have a small size to efficiently move materials...", this is the key concept.)

Answer:

A. Each organelle carries out only one role in the life functions of the cell.

Question 7 (Incomplete, but assuming it's about cell size and material movement):

(Note: Since the question is cut off, but based on context, the typical answer relates to surface area - to - volume ratio. Cells are small because a smaller size gives a larger surface area - to - volume ratio, which allows for more efficient movement of materials across the cell membrane. If we assume the question is asking why cells are small for efficient material movement, here's the explanation:)