introduction to metabolism

Question 1

define metabolism

Answer 1

linked series of chemical reactions that begins with a particular molecule and converts it into some other molecule or molecules in a carefully defined fashion

Question 2

define catabolism

Answer 2

converts energy from fuels into biologically useful forms

Question 3

define anabolism

Answer 3

require inputs of energy to proceed

Question 4

what is creatine phosphate useful for

Answer 4

used for quick energy release when we absolutely need it

Question 5

what serves as the principle immediate donor of free energy

Answer 5

ATP

Question 6

what is the oxidation of carbon fuels useful for

Answer 6

source of cellular energy

Question 7

what is one primary role of catabolism

Answer 7

generation of ATP

Question 8

what are carbon in fuel molecules oxidized to

Answer 8

CO2

Question 9

what do motion, active transport, signal amplification and biosynthesis need in order for them to take place

Answer 9

APT to be continually regenerated from ADP

Question 10

in aerobic organism, what is the ultimate electron acceptor and oxidation product in the oxidation of carbon

Answer 10

electron acceptor: O2

oxidation product: CO2

Question 11

how is the energy of foodstuffs extracted

Answer 11

1. degradation and absorption (no energy extracted)
2. glycolysis (little ATP produced)
3. acetyl CoA used in aerobic reaction (Most ATP produced here)

Question 12

what are the 3 main ways metabolic processes are regulated

Answer 12

controlling the amount of enzymes
controlling catalytic activity
controlling accessibility of substrates