Chapter 3- Part 1

Question 1

Largest organelle

Answer 1

Nucleus

Question 2

Moves non polar (uncharged) substances passively across lipid portion of membrane

Answer 2

Simple diffusion

Question 3

Consist of cytiosial (ICF) fluid portion,organelles ; small organs

Answer 3

Cytoplasm

Question 4

Contains lower solute concentrations ECF then cytosol - water moves into cell at faster rate causing cell to burst (lyse)

Answer 4

Hypotonic solution

Question 5

2 lipid types phospholipids ; most common & cholesterol strengthens membrane

Answer 5

Lipid type

Question 6

Moves substance from higher to lower concentrations down or with concentration gradient until equilibrium is reached

Answer 6

Passive process

Question 7

Requires energy- moves substances from lower to higher concentrations uphill or against their concentration gradient

Answer 7

Active process

Question 8

Permits some substances to pass through membrane

Answer 8

Selectively permeable

Question 9

Consists of proteins arranged in lipid bilayer (double layer)

Answer 9

Plasma membrane structure

Question 10

Isotonic,hypotonic,hypertonic

Answer 10

Solution types

Question 11

Functions as channels,transporters,carriers and enzymes

Answer 11

Proteins

Question 12

Contains higher solute concentration in ECF then cytosol -water moves out of a cell at faster rating causing cell to crenate (shrink)

Answer 12

Hypertonic solution

Question 13

Cell eating

Answer 13

Phagocytosis

Question 14

Cell drinking

Answer 14

Pinocytosis

Question 15

(Secretoin) transport materials out of cell

Answer 15

Exocytosis

Question 16

Water moves passively from a higher water (lower solute) concentration to a lower water (higher solute) concentration

Answer 16

Osmosis

Question 17

Pumps vesicular transport; transport materials in or out of cell

Answer 17

2 active processes

Question 18

Moves polar charged substances across protein portion of membrane

Answer 18

Facilitated diffusion

Question 19

Permits non polar (uncharged) substances to pass

Answer 19

Lipid bilayer portion

Question 20

2 types, integral proteins extend through entire membrane, peripheral proteins; attach to surface

Answer 20

Protein type

Question 21

Substances cross membrane 2 ways; passively;no energy required;actively;energy required

Answer 21

Transport methods

Question 22

Transport materials into cells 2 types pinocytosis,phagocytosis

Answer 22

Endocytosis

Question 23

Contains equal solute concentration in cytosol (ICF) and ECF water moves into and out of cell at same rate maintaining normal cell shape

Answer 23

Isotonic solution

Question 24

Functional units of living things-vary in shape,size,function

Answer 24

Cells

Question 25

Describes the effect of solute concentration on water movements in and out of cells

Answer 25

Tonicity

Question 26

Seperatelly cells internal and external environment- regulates the movement of materials through cells

Answer 26

Plasma membrane

Question 27

Permits some substances to pass through membrane

Answer 27

Selectively permeable