Which of the following statement(s) is (are) true of V-class proton pumps?

a. They are ATPases.

b. They are present in membranes of plant vacuoles.

c. They serve to decrease the pH inside a lysosome.

d. They can acidify the lumen of an organelle (or the extracellular space) because these pumps are electrogenic

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#Question id: 7206

#Unit 5. Developmental Biology

Which of the following statements explains the dominant mutation of Pmar1 results in a vegetalized embryo is due to:

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#Question id: 28761

#Unit 2. Cellular Organization

Which of the following characteristics are TRUE for Lysosomes ?

a) Is a membrane-enclosed organelles

b) Is Filled with hydrolytic enzymes all are acid hydrolases 

c) Acid hydrolases they need to be activated by proteolytic cleavage

d) Work best at acidic pH

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#Question id: 12729

#Unit 13. Methods in Biology

When the two antiparallel strands of DNA are held together partly by the weak forces between complementary bases and partly by hydrophobic interaction between adjacent , stacked base pairs termed as_____

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#Question id: 11454

#Unit 7. System Physiology – Animal

The structure of the mammalian middle ear is adapted to convert ________.

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#Question id: 903

#Unit 1. Molecules and their Interaction Relevant to Biology

Proteins segments which fold first can promote the folding of other sections of the protein into the native conformation by a process known as