Ch2

Question 1

____ glycolysis uses only glucose or glycogen and begins about 5 sec into high intensity exercise and cont for about 3 min

• doesnt require oxygen
• pfk is the regulation enzyme
• glucose :2ATP and glycogen:3ATP

Answer 1

anaerobic (fast)

Question 2

enzymes are located in the

Answer 2

cytoplasm

Question 3

glucose to pyruvic acid to acetal coA with oxygen

Answer 3

aerobic glycolysis (SLOW)

Question 4

• powerhouse
• acetyl CoA
• krebs cycle
• ETC
• oxidative phosphorylation

Answer 4

mitochondira

Question 5

mitochondria has bulges of inner membrane called ___ where the density is higher in tissues with higher rates of oxidation (heart)

Answer 5

cristae

Question 6

step 1 pyruvate converted to acetic acid
step2 acetic acid combine with coenzyme A to form acetyl coA
step3 krebs cycle

Answer 6

steps

Question 7

• no atp is used
• only 1 atp is produce(step5)
• removal of H+ (steps 3,4,6,8)
• majority of reaction sin mitochondrial matrix
• doesnt use but requires oxygen

Answer 7

krebs cycle

Question 8

• breakdown of foodstuffs from acetyl coA
• beta oxidation-fatty acids
• ETC
• ATP

Answer 8

oxidative phosphorylation

Question 9

• final metabolic pathway
• chemical reactions transfer H+ from NADH & FADH
• water is byproduct

Answer 9

electron transport chain

Question 10

krebs cycle (citric acid cycle, TCA)
completes oxidation of H which carries potential energy
-removed from CHO, fats, proteins

Answer 10

oxidative phosphrylation

Question 11

H transported to ETC combining ADP +P to ATP

-oxygen availablity: final hydrogen acceptor and forms h20

Answer 11

oxidative phosphorylation

Question 12

aerobic metabolism of 1 molecule of glucose yields __ atp

Answer 12

36

Question 13

aerobic metabolism of 1 molecule of glycogen yields __ atp

Answer 13

37

Question 14

triglycerides are transported bound to albumin and moved from cytoplasm into mitochondria by carnitine and beta oxidation

Answer 14

fat metabolism

Question 15

cyclic series of steps that breaks off successive pairs of carbon atoms from ffa which are then used to form acetyl coA

Answer 15

beta oxidation-fatty acids

Question 16

breakdown of lipids
-1 atp required for fats to be activated for b oxidation process and formation of acetyl coA [fats produce much higher amounts of ATP per molecule than glycogen /glucose

Answer 16

beta oxidation

Question 17

palmitic acid is a 16 C fat yielding __ ATP

Answer 17

106

Question 18

fats require 15% more oxygen per ATP produced than CHO require and fats cannot metbolize anaerobically occurring in mitochondrial __

Answer 18

matrix

Question 19

• accumlation of ketones
• alters pH balance
• exercise fuel

Answer 19

ketone bodies

Question 20

creation of glucose in the liver from glycerol, lactate or pyruvate and alanine is ____

Answer 20

glucogenesis

Question 21

carbon, oxygen, hydrogen and nitrogen are

Answer 21

amino acids

Question 22

removes nitrogen and forms glutamate

Answer 22

transmaination

Question 23

• stimulated by ADP, AMP, PI, ph rise

- inhibited by ATP, CP, citrate, FFa, pH ddrop

Answer 23

glycolysis

Question 24

• triglycerides provide greatest source of potential energy (2/3)
• CHO (1/3)
• protein (17%)

Answer 24

fuel utilization at rest

Question 25

1/4 fat and 3/4 CHO

Answer 25

maximal exercise