Exam 3: The Cellular Level of Organization

Imagine two rigid chambers separated by a rigid membrane that is freely permeable to water but impermeable to glucose. Side 1 contains a 10 percent glucose solution and side 2 contains pure water. At equilibrium, what will be the situation?

The_______ typically consists of five or six flattened membranous discs called cisternae.

Components of the cytoskeleton may include all of the following, except

Cilia and flagella contain 9 pairs of________ surrounding a central pair.

Renewal or modification of the cell membrane is a function of the

Changes in the transmembrane potential of a cell are involved in

Figure 3- 2 The Anatomy of a Representative Cell Use Figure 3- 2 to answer the following questions): -Which form of endoplasmic reticulum modifies and packages newly synthesized proteins?

As each codon arrives at the active site of a ribosome, it attracts another molecule containing the anticodon. This molecule is called

________channels can open or close to regulate the passage of materials through the cell membrane.

_____ are responsible for identifying and digesting damaged or denatured proteins.

Membrane proteins perform which of the following functions?

Histones are found in

The enzyme___________ is required for the synthesis of mRNA

Most of the ATP required to power cellular operations is produced in the

The cytoplasm contains the fluid____ and the suspended .

__________is the process of duplicating chromosomes prior to cell division.

Which of these transport processes always requires metabolic energy?

Microtubules have which of the following functions?

What role does the sodium- potassium exchange pump play in stabilizing the resting membrane potential?

A unit in messenger RNA consisting of a set of three consecutive nucleotides is termed an)