B9 - Respiration

Question 1

Aerobic respiration

Answer 1

-glucose + o2 —> co2 + h2o

Question 2

respiration type of reaction

Answer 2

exothermic
-transfers energy to environement

Question 3

cytoplasm

Answer 3

-enzymes are made
-reactions of anaerobic resp occurs here

Question 4

mitochondria

Answer 4

-contains enzymes for aerobic resp
-each enzyme has a different reaction
-folded inner membrane = large sa

Question 5

nucleus

Answer 5

-holds genetic codes for enzymes involved in resp

Question 6

Uses of respiration

Answer 6

-build/break down larger molecules
-make muscles contract
-maintain constant body temp
-active transport in plants
-convert sugars into amino acids = proteins

Question 7

glycogen

Answer 7

-glucose store as a carb

Question 8

When you exercise

Answer 8

-heart rate increases
-arteries dilate = more flow
-breathing rate increases = more o2 + removes more co2
-glycogen is converted to glucose

Question 9

Anaerobic respiration

Answer 9

-without o2
-as blood cannot supply it fast enough
-less energy transferred

Question 10

equation for anaerobic respiration

Answer 10

glucose —> latic acid

Question 11

Balanced word equation for aerobic respiration

Answer 11

C6H12O6 +6O2 —>6H2o +6CO2

Question 12

muscle fatigue

Answer 12

-build up lactic acid

Question 13

oxygen debt

Answer 13

-o2 converts lactic acid to glucose
-so aerobic respiration can happen fully

Question 14

Fermentation

Answer 14

glucose —> ethanol + co2

Question 15

Fermentation uses

Answer 15

-manufacture bread
-alcoholic drinks

Question 16

metabolism

Answer 16

-sum of all reactions that take place in cell/body

Question 17

Metabolic reactions eg

Answer 17

-converts glucose to starch glycogen , cellulose
-formation of lipid molecules
-making proteins from glucose +ions
-respiration + photosynthesis
-Formation of urea

Question 18

Liver processes

Answer 18

-detoxifies poisonous substances
-passing urea into blood to be removed
-breaking down old blood cell + storing the iron

Question 19

Removing lactic acid in liver

Answer 19

-blood flows + transports lactic acid
-converted to glucose + reacts fully
-glucose can be stored as glycogen in liver

Question 20

hepatic vein

Answer 20

-carries blood from liver to heart with food level

Question 21

hepatic artery

Answer 21

-brings oxygenated blood to liver

Question 22

hepatic portal vein

Answer 22

-carries blood containing digested food from intestines to liver