Transport Across Cell Membrane

Question 1

Hydrophobic

Answer 1

regions within the cell

Question 2

Hydrophillic

Answer 2

regions outside the cell

Question 3

Going into the cell

Answer 3

all fuel substances and raw materials necessary for life

Question 4

Going out of the cell

Answer 4

waste and cellular secretions

Question 5

Outer plasma membrane

Answer 5

allows substances into and out of the cell

Question 6

Inner cell membrane

Answer 6

keeps organelles and cell structure in place

Question 7

Nonpolar or hydrophobic molecules pass-through _______ regions

Answer 7

lipid

Question 8

Membrane _____ are responsible for the transport of polar or hydrophilic molecules

Answer 8

proteins

Question 9

Most cells are 30-50% _____ and the rest _______

Answer 9

lipids; proteins

Question 10

________ are found in cell membranes and are linked to lipids and proteins

Answer 10

Carbohydrates

Question 11

______ are suspended as individual units or on the bilayer

Answer 11

proteins

Question 12

_____ that pass through the membrane have 2 _____ ends and a ______ middle region

Answer 12

proteins; hydrophilic; hydrophobic

Question 13

Intregal proteins that extend partly through membranes have a _______ end suspended in the membrane interior and a ______ end facing the surrounding watery medium

Answer 13

hydrophobic

Question 14

____ may displace phospholipid molecules and can move laterally through the bilayer

Answer 14

proteins

Question 15

______ are mainly on the cell surfaces (facing cell exterior

Answer 15

Carbohydrates

Question 16

Carbohydrates=

Answer 16

Glycolipids or glycoproteins

Question 17

Microtubules and MIcrofilaments

Answer 17

associated with the plasma membrane

Question 18

_______ & ______ produce the active motitlity of the cell

Answer 18

microtubeles and microfilaments

Question 19

______ & ______ anchor proteins in place

Answer 19

microtubules and microfilaments

Question 20

Passive Transport

Answer 20

no cellular energy (with the concentration graident)

Question 21

Active Transport

Answer 21

requires cellular energy (moved against the concentration gradient)

Question 22

Hypotonic

Answer 22

solution inside a cell that has more solvent than solute

Question 23

Hypertonic

Answer 23

solution inside a cell that has more solute than solvent

Question 24

Isotonic

Answer 24

solution inside the cell has the same concentration as the solution outside of the cell

Question 25

Faciliated Diffusion

Answer 25

carrier proteins transport substances (polar) across concentration gradients

Question 26

Active Transport depends on presence and activity of membrane ______

Answer 26

proteins

Question 27

Endocytosis

Answer 27

materials go into the cell (produces a vacuole)

Question 28

Exocytosis

Answer 28

materials go out of the cell (vacuole fuses with the cell membrane)

Question 29

Phagocytosis

Answer 29

uptake of solids

Question 30

Pinocytosis

Answer 30

uptake of liquids