SCRIPT 2026 ACCURATE Q&A
COLLECTION
◉Feedback Regulation of Enzyme Activity. Answer: Metabolic
pathways regulated: intermediates/products 'feedback' to provide
info.
◉Oxidation involves. Answer: loss H+/e-; gain O
◉Reduction involves. Answer: gain H+/e-; loss O
◉Disulfide bond formed under which conditions. Answer: oxidizing
condition (loss H)
◉catabolism of triglycerides process. Answer: hydrolysis to liberate
glycerol + 3 FAs glycerol -> glycolytic pathway
◉triglycerides is important for. Answer: Hibernating/ migrating
species
,◉triglycerides is. Answer: fat - important long term E-storage
molecule (can store more E than other macromolecules)
◉fats catabolized ->. Answer: fatty acids and glycerol
◉Why do fats contain more extractable E?. Answer: Because of their
state of reduction: contains long strings of -CH2 groups in
hydrocarbon tails
◉Why are fats ideal for storage?. Answer: Nonpolar -> stored in
anhydrous form (w/out water)
◉B-oxidation is the pathway that catabolize_____ and removes _____
at a time. Answer: fatty acids, one acetyl (2C)
# cycles = #Carbons - 2
◉B-Oxidation occurs in _____ and generates _____. Answer:
mitochondria, peroxisomes and generates Acetyl CoA, reduced
enzymes (NADH, FADH2)
◉glycogenolysis. Answer: When E cell needs are not met and no
incoming source of glucose: glycogen phosphorylase triggers
, glycogen to release a G1P, shifting the equilibrium towards G69
starting glycolysis
◉glycogenesis. Answer: conversion of glucose -> glycogen; GP6 -
GP1
◉if cells need energy and not have an incoming source of glucose.
Answer: Trigger glycogenolysis -> activate glycogen phosphorylate -
> push toward G6P production (while G1P pile up)
◉trigger glycogenolysis -> activate glycogen phosphorylate -> push
toward G6P production (while G1P pile up). Answer:
phosphoglucomutase
◉Energy needs of cell are NOT met and no glucose. Answer:
Glycogenolysis triggered ---> catabolizes glycogen --> activation of
glycogen phosphorlase --> G1P liberated, converted to G6P which is
catabolized via glycolysis
◉a build up of G-6-P and ATP indicate. Answer: enough energy ->
glucose need to be stored -> tranfer to G1P glycogen synthesis
pathway (glycogenesis) initiated
◉what is glycogen. Answer: where glucose is stored for our short-
term energy reserve