Cells Pt.2 (Lipids And Membranes)

Question 1

Lipids are..

Answer 1

Large bio molecules that don’t form polymers

Question 2

Phospholipids 2 parts are ____ and connected by what reaction

Answer 2

Hyrdophilic heads, hydrophobic fatty acid tails. Put together by dehydration synthesis.

Question 3

Amphipathic means

Answer 3

Having parts both polar (hydrophilic) and non-polar (hydrophobic)

Question 4

Phospholipids structure

Answer 4

They create a bilayer, heads on the outside and tails on the inside

Question 5

Fatty Acids can be…

Answer 5

Saturated or Unsaturated

Question 6

Saturated Fatty Acid

Answer 6

Full of hydrogen pairs, straight, viscous, liquid above 70°c

Question 7

Unsaturated Fatty Acid

Answer 7

Double bonds between carbons, bent, liquid above 12°C

Question 8

Cholesterol function

Answer 8

Different effects on membrane fluidity at different temperatures

Question 9

Plasma membrane made from (plus main attribute)

Answer 9

Selectively permeable, made from lipid bilayer (nonpolar molecules) and membrane protiens (polar molecules)

Question 10

Cholesterol is made from

Answer 10

A Carbo skeleton with 4 fused rings

Question 11

Peripheral Protien

Answer 11

Protein connected to the outside of the membrane

Question 12

Integral protein

Answer 12

Transmembrane protein, go through membrane, amphipathic

Question 13

Osmosis

Answer 13

The diffusion of water through a selectively permeable membrane

Question 14

Diffusion

Answer 14

Molecules want to spread out evenly into avaliable spac

Question 15

Hypotonic

Answer 15

Low solute concentration

Question 16

Hypertonic

Answer 16

High solute concentration

Question 17

Equal solute concentration on both sides

Answer 17

Isotonic

Question 18

Glycoprotien

Answer 18

Carbohydrate connected to a protein

Question 19

Glycolipid

Answer 19

Carbohydrate connected to a lipid

Question 20

Burst animal cell

Answer 20

Lysed

Question 21

Shriveled plant cell

Answer 21

Plasmolyzed

Question 22

Animals cells like _____ solutions

Answer 22

Isotonic

Question 23

Plant cells like

Answer 23

Hypotonic Solutions

Question 24

Plant cells like

Answer 24

Hypotonic Solutions

Question 25

Plant cells in an isotonic solution are

Answer 25

Flaccid

Question 26

Facilitated diffusion:

Answer 26

Proteins that help molecules move across plasma membrane

Question 27

Facilitated diffusion requires:

Answer 27

Transport protein, Concentration gradient, No energy required

Question 28

Channel protein:

Answer 28

Protein with channel through the middle, usually for charged particles

Question 29

Carrier protein:

Answer 29

For larger molecules (eg. Glucose)

Question 30

Aquaporins:

Answer 30

For water to transport through membrane

Question 31

Active transport means

Answer 31

Moves substances against gradient

Question 32

Active trabsport uses what proteins?

Answer 32

Protein pumps

Question 33

Protein pumps use:

Answer 33

ATP

Question 34

Electromagnetic pump:

Answer 34

Transport protoen that generates voltage

Question 35

Electro pump for animal cells

Answer 35

Sodium-Potassium pump

Question 36

Electro pump for plants, fungi, and bacteria

Answer 36

Proton pump

Question 37

Bulk transport

Answer 37

Moves large molecules across membrane in vesicles

Question 38

Three types of endocytosis

Answer 38

Phagocytosis, Pinocytosis, Receptor-mediated endocytosis

Question 39

Phagocytosis:

Answer 39

Large particles are taken in

Question 40

Pinocytosis

Answer 40

Tiny droplets of extracellular fluid on taken in

Question 41

Receptor-mediated Endocytosis

Answer 41

Allows cell to aquire bulk of specific substances