Please answer all questions.

1			Cancer cells are more sensitive to drugs and radiation than normal cells.
			A)	True
			B)	False
2			There are many possible causes of cancer including viruses, radiation or exposure to chemicals.
			A)	True
			B)	False
3			Oncogenes are gene segments that normally act to inhibit the formation of abnormal cancer cells.
			A)	True
			B)	False
4			The cell membrane is the fixed, outer layer of a cell that functions like a filter to prevent certain molecules from escaping the cell.
			A)	True
			B)	False
5			The cell membrane and nucleus are usually visible with light microscopy.
			A)	True
			B)	False
6			The phospholipid molecules of a membrane are arranged to have their phosphate ends facing the exterior surface.
			A)	True
			B)	False
7			Cholesterol is a lipid that tends to make cell membranes more rigid with it than without it.
			A)	True
			B)	False
8			One mechanism in the skin that prevents cells from becoming loose and separating is the presence of junctions called desmosomes.
			A)	True
			B)	False
9			A TEM is a device that is used to magnify a cell only about 1,000 times.
			A)	True
			B)	False
10			Smooth endoplasmic reticulum has a significant function in protein synthesis.
			A)	True
			B)	False
11			Selectively permeable membranes allow proteins to pass through them.
			A)	True
			B)	False
12			Lysosomes degrade bacteria and worn cells, and can cause disease by destroying normal tissues.
			A)	True
			B)	False
13			Hydrogen peroxide is a chemical toxic to most cells and is produced by some human cells.
			A)	True
			B)	False
14			Peroxisomes can play a role in the detoxification of alcohol.
			A)	True
			B)	False
15			The centrioles are microtubules that play a significant role in ATP and energy production.
			A)	True
			B)	False
16			The nucleus is an organelle enclosed in a double layer of membrane.
			A)	True
			B)	False
17			The nucleolus functions mainly in the synthesis of DNA.
			A)	True
			B)	False
18			Chromatin is the term for the loosely coiled appearance of DNA in a non-dividing cell.
			A)	True
			B)	False
19			In the process of apoptosis, cells shrink and die but the basic structure of the organelles remains constant.
			A)	True
			B)	False
20			DNA has chemicals that direct metabolic processes as well as reproduction.
			A)	True
			B)	False
21			At the point of equilibrium, during diffusion, there is no further movement of any molecules.
			A)	True
			B)	False
22			In general, the rate of diffusion of a molecule is faster in areas of higher temperature.
			A)	True
			B)	False
23			The sugar added to a water solution is termed the solvent.
			A)	True
			B)	False
24			During renal dialysis, a type of diffusion, it is possible to remove all of a metabolic waste such as urea, from the blood.
			A)	True
			B)	False
25			Osmosis is the movement of water and can occur through any type of permeable membrane.
			A)	True
			B)	False
26			During osmosis, water moves from an area of lower solute concentration to the side with the higher solute concentration.
			A)	True
			B)	False
27			Osmosis is considered a special case of diffusion and is passive in nature.
			A)	True
			B)	False
28			It is possible for an intravenous solution that is labeled isotonic, to be hypotonic to a patient.
			A)	True
			B)	False
29			In active transport, energy is consumed by the cell membrane in the form of ATP.
			A)	True
			B)	False
30			Endocytosis is a passive transport process.
			A)	True
			B)	False
31			Bone cells contain genes for nerve cells that have been repressed.
			A)	True
			B)	False
32			Ribosomes are comprised of RNA that has been synthesized directly by the nucleolus.
			A)	True
			B)	False
33			Vesicles differ from vacuoles in that vesicles are usually produced for the purpose of causing something to leave the cell.
			A)	True
			B)	False
34			The Golgi apparatus plays a direct role in producing the complete cell membrane.
			A)	True
			B)	False
35			Cells have the capability of synthesizing water during metabolism.
			A)	True
			B)	False
36			Membranes are called selectively permeable because they allow most substances to enter the cell.
			A)	True
			B)	False