Quiz 2: Cell Design

(Quiz 2: Question 27) (True or False) A gene is a subunit of information within a chromosome.

T

(Quiz 2: Question 9) The plasma membrane is made chemically of a molecule that has both polar and nonpolar ends and contains _____ inside its structure. A. carbohydrates B. fats C. proteins

C

(Quiz 2: Question 1) Match the following items. 1. centrioles 2. chromosomes 3. endoplasmic reticulum 4. Golgi bodies 5. lysosomes 6. mitochondrion 7. nucleolus 8. plastids 9. ribosome A. contain digestive enzymes B. contain genes for traits C. form fibers to separate chromosomes evenly D. production of needed energy E. production of protein F. production of ribosomes G. production of secretions H. store foods or pigments I. tubes serving as transportation channels

1C, 2B, 3I, 4G, 5A, 6D, 7F, 8H, and 9E

(Quiz 2: Question 11) A water solution that has the same salt concentration as the cells is said to be _____. A. isotonic B. hypotonic C. hypertonic

A

(Quiz 2: Question 16) Why do O 2 and CO 2 pass through the plasma membrane? A. they are nonpolar and soluble B. they are facilitated by protein C. they are "pumped" through D. they undergo pinocytosis

A

(Quiz 2: Question 19) The energy molecule "ATP" is a product of the reactant A. adenosine diphosphate B. adenosine triphosphate C. glucose D. phospholipids

A

(Quiz 2: Question 20) The relative concentration of water in a hypotonic solution is _____. A. high B. low C. equal D. stable

A

(Quiz 2: Question 21) All the organelles within a cell are interrelated and _____. A. dependent on one another B. independent of one another C. self sufficient

A

(Quiz 2: Question 5) When an animal cell is placed in a hypotonic solution: A. it will gain water and may burst B. it will lose water and shrink C. it will remain the same size D. how the cell will react cannot be determined

A

(Quiz 2: Question 6) The division of the nucleus in reproductive cells is called: A. meiosis B. cytokinesis C. Krebs Cycle D. mitosis

A

(Quiz 2: Question 14) Match the following: 1. no cell wall, only plasma membrane: _____ 2. no large vacuole, only small ones: _____ 3. no chlorophyll or chloroplasts: _____ 4. cell plate and no centrioles in cell division: _____ 5. cleavage furrow plus centrioles in cell division: _____ 6. presence of cell wall plus plasma membrane: _____ 7. large hypertonic vacuole: _____ 8. chloroplasts and plastids: _____ A. animal cell B. plant cell

A, A, A, B, A, B, B, and B

(Quiz 2: Question 13) Match the following: 1. cellulose: _____ 2. phospholipid and protein: _____ 3. gives strength to cell: _____ 4. selective membrane: _____ A. cell wall B. plasma membrane

A, B, A, and B

(Quiz 2: Question 10) When water moves freely from a membrane containing a higher concentration to a lower concentration, the diffusion is called _____. A. diffusion B. osmosis C. active transport D. passive transport

B

(Quiz 2: Question 17) When is facilitated diffusion necessary? A. when the molecules are too large B. when the molecules are insoluble C. when the direction of movement is opposite to natural diffusion D. none of the above

B

(Quiz 2: Question 18) The energy required for the mechanism of "active transport" comes from: A. the reactants which yield ATP B. the product of ATP decomposition C. photosynthesis D. cytokinesis

B

(Quiz 2: Question 26) Ribosomal RNA is produced by: A. lysosomes B. nucleoli C. mitochondria D. Golgi bodies

B

(Quiz 2: Question 22) (True or False) It would appear logical that the first cell could have started to function from one organelle having formed by accident.

F

(Quiz 2: Question 25) (True or False) Ribosomal RNA is produced in the cytoplasm.

F

(Quiz 2: Question 12) Organelles that produce energy for the cell and ultimately the body are called _____. A. golgi bodies B. endoplasmic reticulum C. mitochondria D. ribosomes

C

(Quiz 2: Question 2) Glycolysis ends in the production of: A. carbon dioxide B. glycogen C. pyruvic acid D. enzymes

C

(Quiz 2: Question 7) When the cell concentrates potassium within, against the natural tendency of matter, it is performing: A. passive diffusion B. facilitated diffusion C. active transport D. pinocytosis

C

(Quiz 2: Question 24) The _____ are responsible for linking amino acids together. A. lysosomes B. chromosomes C. nucleoulus D. ribosomes

D

(Quiz 2: Question 15) Name the five transport mechanisms of the cell:

active transport, facilitated diffusion, passive diffusion, phagocytosis, and pinocytosis

(Quiz 2: Question 8) The plasma membrane allows some molecular species to enter and excludes others. It is therefore referred to as a(n) _____ membrane A. impermeable B. permeable C. semipermeable

C

(Quiz 2: Question 3) The plasma membrane is made up of: A. a double layer of cellulose B. a single layer of cellulose C. a double layer of protein D. a double layer of phospholipids

D

(Quiz 2: Question 4) The cell theory teaches that: A. the basic unit of life is the organism B. the basic unit of life is the cell C. all cells have the same basic structure D. cells are miniature reflections of the organisms from which they are taken

B