Exam 3: Cell Structure and Genetic Control

Which of the following is NOT a function of membrane proteins?

Cells with large numbers of microvilli on their apical surface are probably involved in

Cells in the G₁ phase of the cell cycle contain half as much DNA as cells in the G₂ phase.

Pseudopods can be used for both amoeboid movement and phagocytosis.

Chromatin that is active in genetic transcription is called

Growth of a tissue due to hypertrophy occurs when cells increase in number.

One possible reason that the proteome is so much larger than the genome is that tRNAs can be spliced in alternative ways thereby increasing the number of products produced from a particular gene.

All body cells have at least one nonmotile primary cilium with a "9+2" structure.

Particulate matter is nonspecifically taken into cells by the process of

Chromosomes move to opposite poles in

The plasma membrane is referred to as a mosaic because of the presence of

Primary cilia may serve sensory functions such as vision.

Crossing over is important for

The pH of the cytoplasm is more ___________ than the interior of a primary lysosome.

How many proteins does it appear that humans can produce?

Growth due to increased cell size is called

Cyclins are a group of proteins which promote different phases of the cell cycle.

The organelle that acts as enzymes for protein synthesis is the

What enzyme is needed to prevent excessive accumulation of hydrogen peroxide from peroxisome activity?

Cells actively involved in secreting proteins would contain large numbers or quantities of