Question

The sodium-potassium pump is called an electropenic pump because it A) pumps electrons across the plasma membrane B) pumps hydrogen ions out of the cell. C) contributes to the membrane potential D) ionizes sodium and potassium atoms 33) The sodium-potassium pump generates the following concentration gradients across the plasma membrand: A) high [Na+] and [K+] inside the cell and low |Na+] and [K"I outside. B) low [Na*] and [K'] inside the cell and high [Na] and [K'1 outside C) low/Na+] and high [K*) inside the cell and high [Na*) and low IK"İ outside. D) high [Na*) and lovs [K"] inside the cell and low [Na*) and high [K+] outside 34) In animal cells, glycolysis occurs in the A) cytosol. B) outer mitochondrial membrane. C) inner mitochondrial membrane. D) mitochondrial matrix. E) nucleus. 35) In addition to ATP, what are the end products of glycolysis? A) CO2 and H20 B) co2 and pyruvate C) NADIH and pyruvate D) CO2 and NADH E) H20, FADH2, and citrate 16) Which of the following are prodacts of the light reactions of photosynthesis that are utilized in the Calvin cycle? A) CO2 and glucose B) H20 and 02 C) ADP, Di and NADP D) electrons and H E) ATP and NADPH 37) Where does the Calvin cycle take place? A) stroma of the chloroplast B) thylakoid membrane C) outer membrane of the chloroplast D) interior of the thylakoid (thylakoid space)

Answer 1

Answer:

32. C

33. C

34. A

35. C

36. E

37. A

Explanation:

32. The Sodium-Potassium pump is called an electrogenic pump because there is a movement of one net positive charge out of the cell, that is, for every three molecules of sodium ions that move out, two molecules of potassium moves in.

33. There is low sodium ion and high potassium ion inside the cell and high sodium ion and low potassium ion outside the cell because sodium ions move out of the cell while potassium ion moves into the cell

34. Glycolysis occurs in the cytosol of the cytoplasm of an animal cells because the enzymes involved in this process are located in the cytosol

35. NADH and Pyruvate are the end products generated as the end products of glycolysis.

36. ATP and NADPH are generated from the light-dependent reaction of photosynthesis which are utilized in the Calvin cycle. NADP+ is reduced to NADPH by H+ from water and ATP from ADP through chemiosmosis (the movement of ions across a semi-permeable membrane down the concentration gradient).

37. Calvin Cycle occurs in the stroma of the chloroplast