Question

question 5
8 points
the structure that is found in plants and prokaryotes that functions to maitain the shape and rigidity of these cell. it is absent in animal cells.
a cell wall
b plasma membrane
c cyoskeleton
d nuclear envelope
question 6
8 points
the membranous organelle that functions in lipid production.
a nucleus
b chloroplast
c mitochondria
d golgi apparatus
e rough endoplasmic reticulum
f smooth endoplasmic reticulum

Explanation:

Question 5

To solve this, we analyze each option:

• Option A: Cell wall is present in plants and prokaryotes, providing shape and rigidity, and absent in animal cells.
• Option B: Plasma membrane is in all cells (plant, animal, prokaryote) for protection, not for rigidity.
• Option C: Cytoskeleton is in all eukaryotic cells (including animal) for structure, not specific to plants/prokaryotes for rigidity.
• Option D: Nuclear envelope is in eukaryotic cells (plant and animal) around the nucleus, not for cell shape/rigidity.

So the correct answer is A.

Analyze each option:

• Option A: Nucleus is for genetic control, not lipid production.
• Option B: Chloroplast is for photosynthesis in plants, not lipid production.
• Option C: Mitochondria is for energy (ATP) production, not lipids.
• Option D: Golgi apparatus modifies and packages proteins/lipids, not produce lipids.
• Option E: Rough endoplasmic reticulum (RER) has ribosomes, functions in protein synthesis.
• Option F: Smooth endoplasmic reticulum (SER) is the membranous organelle responsible for lipid production (and detoxification, etc.).

So the correct answer is F.

Answer:

A. Cell wall

Question 6