In which of the following cases is energy NOT needed for transmembrane transport?

a. Lysine moves into the cell against its concentration gradient via the Na+/lysine symporter.

b. Potassium ions (K+) move out of the cell down the K+ concentration gradient via potassium channels.

c. Glucose moves into the cell down its concentration gradient via a glucose uniporter.

d. Sodium ions (Na+) move out of the cell down the Na+ concentration gradient via sodium channels.

Which of the following are correct?

#Question id: 11394

#Unit 9. Diversity of Life Forms

Foods can be preserved in many ways by slowing or preventing bacterial growth. Which of these methods would not generally inhibit bacterial growth?

#Question id: 481

#Unit 1. Molecules and their Interaction Relevant to Biology

In the phosphoglycerate mutase reaction, the side chain of which amino acid in the enzyme is transiently phosphorylated as part of the reaction?

#Question id: 28785

#Unit 2. Cellular Organization

A sponges toxin Latrunculin involve__

#Question id: 10167

#Unit 6. System Physiology – Plant

Mechanisms of C4 acid transported mesophyll → bundle sheath for decarboxylation, which of the following CORRECT combination of decarboxylation process?

a.) NADP–malic enzyme (NADP–ME)→ transport Malate from mesophyll to bundle sheath

b.) NAD–malic enzyme (NAD–ME)→ transport Aspartate from mesophyll to bundle sheath

c.) PEP carboxykinase (PEPCK)→ transport Aspartate from mesophyll to bundle sheath

d.) PEP carboxylase (PEPCase)→ transport Malate from mesophyll to bundle sheath

#Question id: 24437

#Unit 1. Molecules and their Interaction Relevant to Biology