Bio (cells)

Question 1

Active site

Answer 1

A specific shaped part of an enzyme where the substrate fits

Question 2

Active transport

Answer 2

the movement of molecules from an area of low concerntration to an area of high conserntration which requires cell energy

Question 3

Aerobic respiration

Answer 3

Resperation in the presence of oxygen

Question 4

Anaerobic respiration

Answer 4

respiration with limited oxygen

Question 5

cell wall

Answer 5

Rigid layer of cells found only in plants

Question 6

Chlorophyll

Answer 6

green pigment found in the chloroplast which obsorbs sunlight

Question 7

chloroplast

Answer 7

site of photosynthesis

Question 8

Cristae

Answer 8

part of mitochondria (the folds) where the electron transfer chain occurs

Question 9

denature

Answer 9

the changing in shape of the active site of the enzyme, so the substrate can no longer fit on the active site. cuased by high temperatures abd incorrect pH

Question 10

full name for DNA

Answer 10

Deoxyribosone nucleic acid

Question 11

Diffusion

Answer 11

the movement of materials from an area of high concentration to an area of low concentration

Question 12

DNA replecation

Answer 12

the copying of DNA before the cell divides

Question 13

Enzymes

Answer 13

biological catalysts which speed up biological chemical reations in an organism

Question 14

Facilitated diffusion

Answer 14

a form of passive transport where molecules move across the cell membrane through the membrane proteins

Question 15

G1 of cell cycle

Answer 15

the stage in the cell cycle where the cell grows and does its job

Question 16

G2 of cell cycle

Answer 16

the stage in the cell cycle where the replicated chromosomes are checked for mistakes

Question 17

golgi body

Answer 17

part of a cell where proteins are modified and packaged

Question 18

grana

Answer 18

part of chloroplast where the light stage occurs

Question 19

hypertonic solution

Answer 19

a solution with a high concentration of solute, therefore a low concentration of water

Question 20

hypotonic solution

Answer 20

a solution with a low concerntration of solute, therefore a high concentration of water

Question 21

inhibitors

Answer 21

poisons that bind to the active site of enzymes and stop them working

Question 22

isotonic solutions

Answer 22

a solution which has the same osmolarity or solute concentration as another solution

Question 23

matrix

Answer 23

part of the mitochondria where the citric acid cycle occurs

Question 24

mitochondria

Answer 24

organelle in cell where respiration occurs

Question 25

mitosis

Answer 25

the cycle where the replicated chromosome is split into 2 cells

Question 26

osmosis

Answer 26

the net movement of water through a semi-permable membrane from an area of high concentration to an area of low concentration

Question 27

palisade layer

Answer 27

part of the leaf where most chloroplast are found, so most photosynthesis occurs here

Question 28

passive transport

Answer 28

the movement of molecules from an area of high concentration to an area of low concentration which doesn’t require energy

Question 29

ribosomes

Answer 29

part of cell where protein synthesis occurs

Question 30

s stage of cell cycle

Answer 30

the stage in the cell cycle where the DNA is replicated

Question 31

Semi conservitive replication

Answer 31

name which describes the fact that the new DNA molecule being one strand new and one strand old

Question 32

semi permeable membrane

Answer 32

A membrane that allows some substrates to pass through it but not others

Question 33

stroma

Answer 33

part of chloroplast where the dark stage occurs

Question 34

lysis

Answer 34

what happens to a animal cell when it obsorbs to much water during osmosis that the cell bursts

Question 35

shrivels

Answer 35

name given to animal cell when there is to many water molecules moved into substrate during osmosis

Question 36

plasmolysed

Answer 36

lack of water molecules within the plant cell which pulls the plasma membrane away from the cell wall

Question 37

turgid

Answer 37

filled vacuole within the plant cell but doesn’t burst due to ridged cell wall

Question 38

concentration gradient

Answer 38

thye measure of molecule concentration movement across an area

Question 39

osmosis

Answer 39

the diffusion of water molecules

Question 40

endocytosis

Answer 40

molecules are entered into the cell

Question 41

exocytosis

Answer 41

molecules removed from the cell

Question 42

base pair rule

Answer 42

base pair specifically to prevent mutation (A+T C+G)

Question 43

photosynthesis

Answer 43

the chemical prosses where plants convert carbon dioxide and water into sugar (glucose) using sunlight

Question 44

nucleotides

Answer 44

a unit made up of sugar, phosphate, and a base

Question 45

Aerobic respiration word equation

Answer 45

glucose+oxygen->carbon dioxide+water+ATP+heat

Question 46

photosynthesis word equation

Answer 46

carbon dioxide+water->glucose+oxygen+water

Question 47

equalibrium

Answer 47

equal concentration of water molecules are solute molecules between cell and solution