the citric acid cycle

Question 1

it is the central role of the citric acid cycle, processes that play key roles in what type of metabolism

Answer 1

energy-generating system under the presence of oxygen

Question 1

what are the 3 processes that play roles in aerobic metabolism

Answer 1

citric acid cycle
- central metabolic pathway

electron transport
- series of oxidation-reduction reaction

oxidative phosphorylation
- process of generating ATP

Question 2

briefly explain the citric acid cycle

Answer 2

stage 1: acetyl-CoA production
glucose, fatty acids, amino acids r broken down

stage 2: acetyl-CoA oxidation
takes Acetyl-CoA and processes it in a circular pattern
releases CO2 as waste and produces energy carriers (NADH, FADH2)

stage 3: electron transport and oxidative phosphorylation
use energy carriers from stage 2
undergo electron transport
produce ATP and water

Question 3

the citric acid cycle metabolism consists of

Answer 3

catabolism:
oxidative breakdown of nutrients

anabolism:
reductive synthesis of biomolecules

Question 4

this is where the citric cycle happens

Answer 4

matrix (inner membrane) of the mitochondria

Question 5

briefly explain the structure of the mitochondrion

Answer 5

IMS: intermembrane space
- the space between the 2 membranes
- collects H+ and store

MATRIX:
where the TCA cycle happens
contains enzyme that break down food

IMS collects H+ (came from the matrix) to store then later enters back to the matrix to produce ATP

Question 6

able to be part of both catabolism and anabolism

Answer 6

amphibolic

Question 7

the citric acid cycle is also known as

Answer 7

krebs cycle
triacarboxylic acid cycle