Question

Removing Pi from Na-K pump, the pump opens toward inside the cell. True or False?

Enzymes increase the speed of a reaction by decreasing the activation energy. Group of answer choices True False

The greater the lipid solubility of a substance, the slower the substance can diffuse through the membrane's lipid bilayer down its concentration gradient. Group of answer choices True False

By changing two Pyruvates to two AcoA, cell produces 2 NADH Group of answer choices True False

Secondary active transport usually occurs as a coupled transport process. Group of answer choices True False

You put one RBC in a 0.8 Osm solution. The RBC would Group of answer choices

crenate

remain constant

It ruptures there is not enough information to answer this question

Answer 1

1. Removing Pi from Na-K pump, the pump opens toward inside the cell. True.

When phosphate is removed, the pump opening towards the interior of the cell and release two potassium ions into the cytoplasm.

2. Enzymes increase the speed of a reaction by decreasing the activation energy. True.

Enzymes are catalyst increases the rate of reaction by lowering the activation energy.

3. The greater the lipid solubility of a substance, the slower the substance can diffuse through the membrane's lipid bilayer down its concentration gradient. False

Non polar lipid molecules diffuse rapidly than polar molecules.

4. By changing two Pyruvates to two AcoA, cell produces 2 NADH- True

Pyruvate molecule releases CO2 upon losing one carbon atom during when the electrons are transferred to NAD+ to produce NADH.

5. Secondary active transport usually occurs as a coupled transport process. True

6. You put one RBC in a 0.8 Osm solution. The RBC would Group of answer choices

crenate

remain constant

It ruptures

there is not enough information to answer this question