Biochemistry: cellular respiration

Question 1

three goals of cellular respiration

Answer 1

1. break bonds between the 6 carbons of glucose to make 6 o2 –> (from inorganic to organic)
2. move h atoms electrons from glucose to o2 to make 6h2o
3. trap as much free energy in ATP

Question 2

ATP recycled

Answer 2

ATP is broken down to release energy and forming ADP and phosphate group –> phosphorylation is attaching a phosphate group to a molecule to make the molecule more unstable and therefore more reactive.

Question 3

4 stages of cellular respiration

Answer 3

1. glycolysis
2. pyruvate oxidation in mitochondria
3. krebs cycle in mitochondrial matrix
   4.electron transport chain (ETC) and chemiosmosis - inner mitochondrial membrane

Question 4

starch

Answer 4

polymer of alpha glucose and is the main form of carbohydrate storage in plants
form a compact spiral structure and is stored in the starch granules of plants

Question 5

2 forms of starch

Answer 5

amylose
- a straight chain polymer of alpha glucose with 1-4 glycosidic bonds

amylopectin
- a branched polymer of alpha glucose with both 1-4 and 1-6 glycosidic bonds

Question 6

glycogen

Answer 6

a polymer of alpha glucose
storage of energy of