Chapter 3 Test

Question 0

Process of molecules movies from an area of great concentration to an area of lower concentration

Answer 0

Diffusion

Question 1

No work

Answer 1

Passive mechanisms

Question 2

The difference between the concentrations

Answer 2

Concentration gradient

Question 3

Diffusion continues until ___________ is reached

Answer 3

Equilibrium

Question 4

Diffusion can only occur is:

Answer 4

• the cell membrane is permeable to that substance.

- there must be a concentration gradient

Question 5

Specialized structure within the cells

Answer 5

Organelles

Question 6

CELL FUNCTION:

Regulates the movement of substances into and out of cell

Answer 6

Cell or plasma membrane

Question 7

CELL FUNCTION:

System of tubules that transport lipids and proteins

Answer 7

Endoplasmic reticulum

Question 8

CELL FUNCTION:

Synthesize proteins; “protein factories”

Answer 8

Ribosomes

Question 9

CELL FUNCTION:

Modifies proteins into glycoproteins for secretion

Answer 9

Golgi apparatus

Question 10

CELL FUNCTION:

Contains enzymes that cause chemical reactions to release energy from nutrients; provide energy

Answer 10

Mitochondria

Question 11

CELL FUNCTION:

contain digestive enzymes that can digest the cell from the inside; decompose worn out cell parts and excess substances

Answer 11

Lysosomes

Question 12

CELL FUNCTION:

Contain enzymes that are catalysts for liver and kidney functions

Answer 12

Peroxisomes

Question 13

CELL FUNCTION:

Forms the cell Skeleton and aid in transport of substances within the cell cilia; hairlike extensions that aid in movement

Answer 13

Microfilments and microtubules

Question 14

CELL FUNCTION:

Whiplike extension that aids in movement of the cell

Answer 14

Flagellum

Question 15

CELL FUNCTION:

Produces the ribosomes

Answer 15

Nucleolus

Question 16

CELL FUNCTION:

Contains chromosomes (DNA) and functions in cellular reproduction; function in production of proteins

Answer 16

Chromatin

Question 17

Dissolving medium; typically water in the body

Answer 17

Solvent

Question 18

Neoplasm and cytosol

Answer 18

Intercellular fluid

Question 19

Fluid on the exterior of the cell

Answer 19

Interstitial fluid

Question 20

Describe interphase:

Answer 20

• cell grows

- cell carries on metabolic processes

Question 21

What happens in mitosis-

Answer 21

• cell division

- cell replicates itself

Question 22

Dividing of the cytoplasm

Answer 22

Cytokinesis

Question 23

Uses diffusion to separate small molecules from large ones in a liquid

Answer 23

Dialysis

Question 24

Molecules are unable to pass through the membrane alone and must have a carrier molecule

Answer 24

Facilitated

Question 25

TYPES OF SOLUTIONS: The concentration of solutes inside the cells is the same as the concentration outside the cell. (Cell stats the same size)

Answer 25

Isotonic solution

Question 26

TYPES OF SOLUTIONS: The concentration of solutes outside the cell is greater than the concentration inside the cell. (Cell will shrink because water will move out of cell)

Answer 26

Hypertonic solutions

Question 27

TYPES OF SOLUTIONS: The concentration of solutes outside the cell is lower than the concentration inside the cell. (Cell will swell bc water will move into it)

Answer 27

Hypotonic solution

Question 28

Time between cell divisions

Answer 28

Interphase

Question 29

Prophase-

Answer 29

- sister chromatids are held together by centromere - nuclear membrane disappears - nucleoli a disappears - centrioles separate and move to opposite ends of the cell - spindle begins to form

Question 30

Metaphase

Answer 30

- Sister chromatids with the centromeres are attached to the spindle fibers - the chromatids line up along the equator of the cell

Question 31

Anaphase

Answer 31

- separation of chromosomes with sister chromatids moving to opposite ends of the cell

Question 32

Telophase

Answer 32

- spindle breaks down - nucleolus reappears - chromosomes coil - a nucleus forms at each end - cell membrane pinches dividing the cytoplasm (cytokinesis)

Question 33

What is the function of mitosis?

Answer 33

function: is to produce more cells for growth and repair process