本题目来源于试卷: Interaction & Interdependence C.2 Cell Respiration，类别为 IB生物学
[单选题]
Which of the following requirk;-w) -qsuz oc9y:mxses ATP as an imm dl5-y ygud,4r :vy*n8ep6wnaediate source of energy?
I.Transmission of a nerve impulse
II.Osmosis
III.Condensation of a polypeptide
A. I and II only
B. I and III only
C. II and III only
D. I, II and III
参考答案: B
本题详细解析:
ATP from cell respiration is an immediate source of energy forxu1f ,*bbgae :mx60z r metabolic processes.
Neurons transmit information in the form of electrical impulses (Sgx 0,xz1ur*ae6 mbb:ftatement I). This transmission can only happen when there is a difference in concentrations of Na
+
and K
+
ions across the axonal membrane of a neuron. Energy in the form of ATP is required for the Na
+
/K
+
pump to restore the ionic balance after the voltage-gated response.
Osmosis (Statement II) does not require ATP. It is a passive transport process where water can move through a partially permeable membrane from an area of lower solute concentration to an area of higher solute concentration.
The condensation reaction of a polypeptide (Statement III) is the joining of amino acids together to form a polypeptide. It is an anabolic reaction where ATP is required to join amino acids together to form a peptide bond, and water is produced.
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