WVSU Biology 120 Test 1

Nucleolus of the nucleus is the site of A. protein synthesis. B. ribosome assembly. C. chromosome replication. D. lipid synthesis. E. uncoiling and unraveling of chromosomes.

Membrane-bound organelles that contain powerful enzymes found in cells are known as A. lysosomes. B. plastids. C. vacuoles. D. liposomes. E. ribosomes.

All of the following are examples of monomer: polymer pairings except A. amino acids: polypeptides. B. monosaccharides: polypeptide. C. nucleotides: DNA. D. glucose: starch. E. fatty acids: triglycerides.

Four of the following five choices are functions of carbohydrates. Select the exception. A. Chitin is a carbohydrate that is used in insects and other arthropods in the structures of their exoskeletons. B. Starch is a carbohydrate that is used by some plants as a way to store glucose. C. Glycogen is a carbohydrate that is used by animals as a way to store glucose. D. Cellulose is a carbohydrate that serves a structural function in plants. E. Glucose is a carbohydrate that is utilized by all life forms in the construction of nucleotides.

Which of the following is not found in RNA? A. adenine B. cytosine C. guanine D. thymine E. uracil

Which of the following is not a component of nucleic acids? A. a five-carbon sugar B. a six-carbon sugar C. a phosphate group D. phosphodiester bonds E. an organic nitrogen containing base

38. The information storage molecules of cells are called A. fatty acids. B. membrane lipids. C. enzymes. D. hormones. E. nucleic acids.

Proteins possess all of the following functions except A. structure. B. metabolism. C. encode genetic information. D. membrane transport. E. cell recognition.

Functional groups found in amino acids include all of the following except A. -NH2. B. phosphate. C. -COOH. D. -OH. E. alkyl (linked multiple carbons with hydrogens)

27. A common lipid for energy storage is A. phospholipid. B. steroid. C. triglycerides. D. cholesterol. E. wax.

A type of transport of a solute across a membrane, up its concentration gradient, using protein carriers driven by the expenditure of chemical energy is known as A. osmosis. B. diffusion. C. facilitated transport. D. active transport. E. exocytosis.

The cell's transactions with the environment mediated by its plasma membrane include all of the following except A. ingesting food as molecules and sometimes as entire cells. B. returning waste and other molecules back to the environment. C. responding to a host of chemical cues. D. directing the synthesis of various food-digesting proteins. E. passing of messages to other cells.

Which of the following protein classes are not found as membrane proteins? A. transport channels B. hormones C. receptors D. enzymes E. identity markers

Carrier-mediated transport is also called A. facilitated diffusion. B. active transport. C. exocytosis. D. endocytosis. E. phagocytosis.

Cell-walled organisms cannot carry out A. exocytosis. B. active transport. C. osmosis. D. diffusion. E. endocytosis.