biology 1150 test two (cell struture)

Question 1

centrioles

Answer 1

may function in cell division

Question 2

microtubule

Answer 2

maintains cell shape and forms tracks on which vesicles move

Question 3

microfilament

Answer 3

plays a role in muscle contraction and cell division

Question 4

plasma membrane

Answer 4

regulates movement of materials into and out of the cell

Question 5

cytoplasm

Answer 5

the material surrounding the nucleus

Question 6

lysosome

Answer 6

digests substances brought into cell and destroys old parts of cells

Question 7

mitochondrion

Answer 7

provides cell with energy through the breakdown of glucose during cellular respiration

Question 8

nucleus

Answer 8

contains dna and controls cellular activity

Question 9

nucleolus

Answer 9

produces components of ribosomes

Question 10

ribosome

Answer 10

site where protein synthesis begins

Question 11

rough endoplasmic reticulum

Answer 11

studded with ribsomes and produces membrane

Question 12

smooth endoplasmic reticulum

Answer 12

detoxifies drugs and produces membrane

Question 13

golgi complex

Answer 13

sorts, modifies, and packages proteins

Question 14

as a cell gets larger, its surface area increases far more _____ than its volume (surface to volume ratio)

Answer 14

slowly

Question 15

a ____ cell would have difficulty moving all the nutrients it needs and all the wastes it produces and would die

Answer 15

large

Question 16

a _____ cell has sufficient surface for the uptake and removal of substances and would survive

Answer 16

small

Question 17

a mature ___ ____ cell carries oxygen

Answer 17

red blood

Question 18

which of the following structure do all cell types posses

a. membrane bound nucleus
b. plasma membrane
c. cell wall
d. all cells have all of the above

Answer 18

b. plasma membrane

Question 19

_____ is the jellylike solution within a cell that contains everything between the nucleus and the plasma membrane

a. organelles
b. nucleolus
c. cell wall
d. cytoplasm

Answer 19

d. cytoplasm

Question 20

almost all the genetic information of a cell is found in the

a. endoplasmic reticulum
b. golgi complex
c. nucleus
d. mitochondria

Answer 20

c. nucleus

Question 21

the _____ is a bi-layer of phospholipids and responsible for movement of materials in and out of the cell

a. plasma membrane
b. nuclear membrane
c. cytoplasm
d. nucleus

Answer 21

a. plasma membrane