W3 Review - HES 105

In what is pyruvate a final product in?

aerobic glycolysis

T or F? A higher pH means an environment is more acidic.

F

T or F? A higher [H+] means the pH is higher.

F

In what is lactate the final product in?

anaerobic glycolysis

Which enzyme is important in ANAEROBIC GLYCOLYSIS but not in AEROBIC GLYCOLYSIS?

lactate dehydrogenase

In aerobic glycolysis, NAD+ is replenished when NADH loses its electrons. Where does that take place?

at the ETC

During the production of lactate, electrons are "stolen" by pyruvate from what?

NADH

T or F? In anaerobic glycolysis, an increase in H+ production is caused by an increase in La- production.

F

T or F? In anaerobic glycolysis, an increase in La- production is caused by an increase in H+ production.

F

T or F? In anaerobic glycolysis, an increase in La- production happens alongside an increase in H+ production.

T

T or F? Anaerobic glycolysis produces more H+ per glucose than aerobic glycolysis does.

F

T or F? We become acidic more quickly during anaerobic glycolysis compared to during aerobic glycolysis.

T

What is true about muscle acidosis?

disrupts ATP resynthesis, impairs muscle contraction, leads to muscle fatigue, it hurts

What processes help the blood tolerate an influx of H+?

hemoglobin can mop up some of the H+, H+ can combine with bicarbonate (HCO3-) to make CO2

T or F? Muscle has better buffering capacity than blood.

F

T or F? H+ in the blood has no serious consequences.

F

When compared to anaerobic glycolysis, aerobic metabolism is what?

more complicated process, makes more ATP per unit of glucose, less acidic environment, makes less ATP per unit of time, more efficient use of fuel resources

What things are associated with lipids?

triglyceride, beta oxidation, fatty acid, glycerol

What things are associated with protein?

amino acid, nitrogen, transamination, deamination

Which fuel sources can undergo AEROBIC metabolism?

glucose, glycogen, glycerol, fatty acids, amino acids

Which fuel sources can undergo ANAEROBIC metabolism?

glucose, glycogen, glycerol

What reasons do we start to selectively catabolize carbohydrates at higher exercise intensities?

aerobic metabolism of carbs is faster than aerobic metabolism of lipids, it allows us to supplement aerobic metabolism with anaerobic ATP resynthesis (which is faster, and can only use carbs)