Organic Molecules 2

Question 1

Which of these are involved in the movement of structures inside a cell?

Answer 1

microtubules, centrioles, actin

Question 2

Water exits the cell toward the area of lower solute concentration when

Answer 2

a cell is placed in a hypotonic solution

Question 3

Organic catalyst that speeds up a reaction in cells due to its particular shape

Answer 3

enzyme

Question 4

Maintenance of the internal environment of an organism within narrow limits

Answer 4

homeostasis

Question 5

What is the Golgi apparatus responsible for?

Answer 5

the transport of proteins

Question 6

Nucleic acids and carbohydrates both contain phosphate groups

Answer 6

False

Question 7

When mitochondria are found near the surface of kidney cells, the cells are probably

Answer 7

using active transport to pump a molecule across the membrane

Question 8

All eukaryotic cells have

Answer 8

nucleus

Question 9

Polysaccharide composed of glucose molecules; the chief constituent of a plant’s cell wall

Answer 9

cellulose

Question 10

Methane is a polar molecule

Answer 10

False

Question 11

Carrier proteins are ___________ in their action

Answer 11

specific

Question 12

The saline (0.9% NaCl solution) used in hospitals as an IV solution (intravenous) would be ______________ to red blood cells

Answer 12

isotonic

Question 13

Mitochondria are involved in

Answer 13

cellular respiration

Question 14

Dark-staining, spherical body in the nucleus that produces ribosomal subunits

Answer 14

nucleolus

Question 15

Internal framework of the cell, consisting of microtubules, actin filaments, and intermediate filaments

Answer 15

cytoskeleton

Question 16

An isotonic solution has the/a __________ concentration of water as the cell and the/a _____________ concentration of solute as the cell

Answer 16

same, same

Question 17

Besides phospholipids, the other lipid molecule that is vital to an animal’s plasma membrane is

Answer 17

cholesterol

Question 18

The small size of cells is best correlated with

Answer 18

an adequate surface area for exchange of materials

Question 19

___________ are produced by the smooth ER

Answer 19

lipids

Question 20

Which of the following structure(s) would be found in both plant and animal cells?

Answer 20

mitochondria

Question 21

The carbohydrate chains on lipids and proteins are found on ____________________ of the membrane

Answer 21

the outside

Question 22

Pickles appear wrinkled and shriveled because they have been placed in a(n) _____________ solution

Answer 22

hypertonic

Question 23

Cell walls are found in ___________ and contain ____________

Answer 23

plants, cellulose

Question 24

A phospholipid molecule has a head and two tails. The tails are found

Answer 24

in the interior of the membrane

Question 25

Ribosome formation occurs in the

Answer 25

nucleolus