Unit 2 test (cell membrane & Enzymes & ATP)

Question 1

cell membrane made of?

Answer 1

phospholipid bilayer

Question 2

phospholipids made of?

Answer 2

Head and Tail

Question 3

which phospholipid hydrophobic which hydrophilic

Answer 3

Head - phydrophilic
tail - hydrophobic

Question 4

semi-permeable???

Answer 4

bouncer type shi

Question 5

peripheral protein

Answer 5

moves electrons among surface of cell to generate energy for cell/can help molecules move around outside of cell sometimes

Question 6

glycoprotein

Answer 6

Proteins on outside of cell membrane with little tails on them made out of carbohydrates with sugars on them - tails used to recognize other cells

Question 7

integral protein (other name is carrier protein)

Answer 7

proteins that carry molecules up and down the gradient of a channel protein

Question 8

protein channel

Answer 8

proteins that create hydrophilic holes in the normally hydrophobic cell membrane for molecules to pass through (this is what the integral protein is traveling up and down through)

Question 9

list all active transports for a cell

Answer 9

exocytosis, endocytosis, pinocytosis, phagocytosis

Question 10

list all passive transports for a cell

Answer 10

simple diffusion, facilitated diffusion, osmosis

Question 11

endocytosis

Answer 11

cell absorbs substance - phagocytosis and pinocytosis are part of endocytosis)

Question 12

exocytosis

Answer 12

cell expels substance

Question 13

simple diffusion/diffusion

Answer 13

molecules must be small enough and non polar, (not charged) to move across hydrophobic center of cell membrane (passive)

Question 14

diffusion

Answer 14

molecules spreading out on a concentration

Question 15

facilitated diffusion

Answer 15

Molecules is big or polar, cant cross cell membrane, molecules diffuse across plasma membrane with help from protein channel

Question 16

osmosis

Answer 16

movement of water molecules from higher to lower concentration (type of diffusion)

Question 17

phagocytosis

Answer 17

eating action

Question 18

pinocytosis

Answer 18

drinking action

Question 19

hypotonic solution

Answer 19

cells become big and fat, molecules entering but not exiting (plant cell would be called turgid)

Question 20

hypertonic solution

Answer 20

cells become small and defaulted, wrinkled, molecules exiting but not entering (plant cell would be called plasmoyzed

Question 21

isotonic solution

Answer 21

equal balance of molecules entering and exiting cell, looks like normal cell (plant cell would be called flaccid)

Question 22

why does IV water need to contain salt

Answer 22

blood has its own osmotic pressure, adding large amount of fluid without a solvent will ruin that + it balanced the electrolytes in your blood

Question 23

Enzymes in human body

Answer 23

amylase –> breaks down starch into sugar molecules
Lipase –> breaks fats into fatty acids
etc.

Question 24

chlorophyll

Answer 24

organel in plant cell responsible for photosynthesis

Question 25

light intensity

Answer 25

amount of power or light emitted or measured from a source

Question 26

fermentation

Answer 26

chemical breakdown of a substance by bacteria, yeast, or other micro organisms

Question 27

calorie

Answer 27

unit of energy

Question 28

energy

Answer 28

the ability to cause change

Question 29

matter

Answer 29

any substance that has mass and takes up space

Question 30

photosynthesis - which are products which are reactants??

Answer 30

6CO2 + 6H2O → C6H12O6 + 6O2.

Question 31

cellular respiration - which are products which are reactants??

Answer 31

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP

Question 32

why is the structure of an enzyme important to its function??

Answer 32

enzymes work like a lock and key or a puzzle piece

Question 33

what three things affect enzymes

Answer 33

temperature, concentration, ph

Question 34

what organelle is responsible for cellular respiratrion

Answer 34

mitochrondria

Question 35

what organelle is responsible for photosynthesis

Answer 35

chloroplasts

Question 36

is mitochrondria in plant and animal cells?

Answer 36

yes dumb ass (molly)

Question 37

relationship between cellular respiration and photosynthesis

Answer 37

photosynthesis makes glucose which is used in cellular respiration glucose is