Question

question 8
which of the following is the most accurate statement comparing cell membranes and cell walls?
animal cell
plant cell
cytoplasm
nucleus
cell membrane
cellulose cell wall
mitochondrion
permanent vacuole
chloroplast

a cell walls function mostly for photosynthesis while cell membranes function mostly for cellular respiration
b cell membranes are found only in animal cells; cell walls are found only in plant cells.
c cell walls prevent everything from entering the cell, while cell membranes allow some things to enter.
d cell membranes function mostly as selectively permeable gate - keepers while cell walls function mainly as support systems.
question 9
chlamydia is a sexually transmitted disease that is caused by a bacterium called chlamydia trachomatis

Explanation:

Cell membranes are selectively permeable, controlling substance entry/exit (gatekeepers). Cell walls provide structural support. Analyzing options: a links to organelles (incorrect); b claims membranes only in animal cells (false, all cells have membranes); c states walls block all (walls are porous); d correctly identifies membrane permeability and wall support roles.

Answer:

d. Cell membranes function mostly as selectively permeable gatekeepers while cell walls function mainly as support systems.