Question

1. which of the following is a premise for cell theory?

i. all cells arise from other cells
ii. all living cells require sunlight for survival
iii. all living cells are composed of cells with membrane bound organelles
a. i only
b. ii only
c. i and ii
d. i and iii

1. which of the following matches an organelle with its function?*

chloroplast-cellular respiration
lysosome-protein manufacturing
nucleus-control center and dna
rough endoplasmic reticulum-clean up cell by digesting old material

Explanation:

Question 1

• Cell Theory: The cell theory has three main tenets. One of them is that all cells arise from pre - existing cells (premise I).
• Premise II: Not all living cells require sunlight for survival. For example, anaerobic bacteria can survive in the absence of sunlight.
• Premise III: Prokaryotic cells (like bacteria) do not have membrane - bound organelles, but they are still living cells.

• Chloroplast: Its function is photosynthesis, not cellular respiration (cellular respiration mainly occurs in mitochondria).
• Lysosome: It is involved in digestion of waste materials and cellular debris, not protein manufacturing (protein manufacturing occurs in ribosomes, and rough endoplasmic reticulum is associated with protein synthesis and transport).
• Nucleus: It is the control center of the cell as it contains the DNA which has the genetic instructions for the cell's activities.
• Rough endoplasmic reticulum: It is involved in protein synthesis and transport (due to the presence of ribosomes on its surface), not in cleaning up the cell by digesting old material (that is the function of lysosomes).

Answer:

a. I only

Question 2