Question

question 1 (4 points)
(02.03 lc)
what are the main differences between plant and animal cells?
a animal cells have a large central vacuole.
b animal cells have rough endoplasmic reticulum.
c plant cells are more rigid due to the cell wall.
d plant cells have smooth endoplasmic reticulum.

question 2 (4 points)
(02.03 lc)
which organelle stores genetic information?
a chloroplast
b golgi apparatus
c nucleus
d ribosome

Explanation:

Question 1

• Option a: Animal cells have small vacuoles, while plant cells have a large central vacuole. So a is incorrect.
• Option b: Both animal and plant cells can have rough endoplasmic reticulum. So b is incorrect.
• Option c: Plant cells have a cell wall made of cellulose, which makes them more rigid than animal cells (which lack a cell wall). This is a main difference. So c is correct.
• Option d: Both plant and animal cells can have smooth endoplasmic reticulum. So d is incorrect.

• Option a: Chloroplasts are involved in photosynthesis and contain chlorophyll, not genetic information storage. So a is incorrect.
• Option b: Golgi apparatus is involved in modifying, sorting, and packaging proteins, not genetic info storage. So b is incorrect.
• Option c: The nucleus contains the cell's DNA, which is the genetic material. So the nucleus stores genetic information. c is correct.
• Option d: Ribosomes are involved in protein synthesis, not genetic info storage. So d is incorrect.

Answer:

c. Plant cells are more rigid due to the cell wall.

Question 2