Exam 3: The Cellular Level of Organization

The following is a list of the steps involved in the process of secretion by the Golgi apparatus. 1. Material moves from cisterna to cisterna by means of transfer vesicles. 2) Exocytosis. 3) Products from RER are packaged into transport vesicles. 4) Secretory vesicles are formed at the maturing face. 5) Vesicles arrive at the forming face. 6) Enzymes modify arriving proteins and glycoproteins. The proper order for these is

Membrane-bound proteins that use metabolic energy to move ions across the plasmalemma are called ________.

Microscopic analysis of a tissue sample indicates that it contains abundant myosin filaments.This tissue is probably contains

A molecule of ________ contains all the codons needed to produce a particular polypeptide.

Membrane proteins perform which of the following functions?

If a red blood cell (RBC)is placed in a 0.5% salt solution,which of the following would occur? 1. water will move out of the RBC 2) RBC will hemolyze 3) RBC will crenate 4) water will enter the RBC

Endocytosis is

The skin swells and puckers during a long bath.This suggests that bath water is a(n)________ fluid.

Synthesis of lipids and glycogen takes place at the

If an animal cell lacked centrioles,it would not be able to

A change in a nucleotide sequence of a gene is termed a(n)________.

Figure 3-1 The Anatomy of a Representative Cell Use Figure 3-1 to answer the following questions: -Which structure produces ATP for the cell?

Special cells called ________ maintain tissues by unending cycles of cell division.

Each of the following is an example of a nonmembranous organelle,except

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?

Hemolysis may occur when a blood cell is placed into

A membrane transport process is found experimentally to have a saturation limit.Which of the following is a possible property of the process?

Which of following properties of the cytoskeleton is false?

Receptor molecules on the surface of cells bind specific molecules called,in general,________.

A)What are the similarities between facilitated diffusion and active transport? B)What are the differences?