Question

question 3
the diffusion of water across a selectively permeable membrane is called

active transport.
facilitated diffusion.
osmosis.
endo - aqua thermogenesis.

question 4
compared to aerobic respiration, anaerobic respiration

requires oxygen and can produce products such as lactic acid or alcohol.
produces 38 atp molecules per reaction and generates 70% more energy
does not require oxygen and produces oxygen and glucose as forms of stored energy that are utilized by the cell.
does not produce as much atp and comes into action as an energy backup for aerobic organisms.

Explanation:

• Question 3: Osmosis is specifically defined as the diffusion of water across a selectively permeable membrane. Active transport requires energy (e.g., ATP) to move substances against a concentration gradient. Facilitated diffusion involves the help of transport proteins for substances (not just water) to move down a concentration gradient. "Endo - aqua thermogenesis" is not a recognized biological term related to water movement across membranes.
• Question 4: Aerobic respiration requires oxygen and produces a large amount of ATP (up to 38 ATP per glucose molecule in ideal conditions). Anaerobic respiration does not require oxygen. It produces less ATP than aerobic respiration. For example, in lactic acid fermentation (a type of anaerobic respiration), only 2 ATP are produced per glucose molecule compared to the higher yield in aerobic respiration. Option a is wrong because anaerobic respiration does not require oxygen. Option b is incorrect as anaerobic respiration does not produce 38 ATP. Option c is wrong because anaerobic respiration does not produce oxygen and glucose as stored energy forms in the context of respiration (glucose is broken down in respiration).

Answer:

Question 3: C. osmosis
Question 4: D. does not produce as much ATP and comes into action as an energy backup for aerobic organisms.