AP BIOLOGY

LABORATORY REVIEW

DIFFUSION AND OSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these processes require energy from respiration?√ = energy required X= energy not required
A
Diffusion √ Osmosis √
B
Diffusion √ Osmosis X
C
Diffusion XOsmosis √
D
Diffusion XOsmosis X
Explanation: 

Detailed explanation-1: -Complete answer: During transport, diffusion does not require any energy.

Detailed explanation-2: -Diffusion expends no energy. Rather the different concentrations of materials in different areas are a form of potential energy, and diffusion is the dissipation of that potential energy as materials move down their concentration gradients, from high to low.

Detailed explanation-3: -Facilitated diffusion is a passive process: the solutes move down their concentration gradient and do not require the expenditure of cellular energy for this process.

Detailed explanation-4: -So, the correct option is ‘Active transport’.

There is 1 question to complete.