IB Bio Cellular Respiration
humans can respire aerobically and anaerobically. which are products of both aerobic cell respiration and anaerobic cell respiration in humans
(a) pyruvate and atp
the diagram below shows a biochemical pathway in a yeast cell. which of the following correctly identifies a compound in the diagram
(b) II is pyruvate
which process produces the most ATP per molecule of glucose
(b) aerobic respiration in a bacterial cell
which of the following is true of the link reaction of aerobic respiration
(b) the decarboxylation of pyruvate occurs
definition of cell respiration
(c) a controlled release of energy, in the form of ATP, from organic compounds in cells
what is required for atp synthesis in mitochondria
(c) accumulation of protons in the intermembrane space
where is carbon dioxide produced in the mitochindrion
(d)
the electron micrograph below shows an organelle in a eukaryotic cell. what is the area labelled X and what is the type of reaction occurring there
(d) matrix and krebs cycle
how do cells capture the energy released by cell respiration
(d) they produce atp
atp invested in krebs cycle
0
atp invested in link reaction
0
atp invested in oxidative phosphorylation
0
gross yield of atp in link reaction
0
net yield of atp in link reaction
0
atp invested in glycolysis
2
gross yield of atp in krebs cycle
2
how many carbon atoms does acetyl co a have
2
net yield of atp in glycolysis
2
net yield of atp in krebs cycle
2
for the following molecules (CO2, ATP, NADH, and FADH2) how many are produced in the krebs cycle for every glucose molecule
2 CO2 2 ATP 6 NADH 2 FADH2
how many carbon atoms does pyruvate have
3
gross yield of atp in oxidative phosphorylation
32
net yield of atp in oxidative phosphorylation
32
gross yield of atp in glycolysis
4
how many carbon atoms does glucose have
6
FAD is reduced to
FADH2
NAD+ is reduced to
NADH + H+
the purpose of the krebs cycle is to form what high energy electron acceptors
NADH and FADH2
what is the name of the decarboxylated pyruvic acid
acetyl
phosphorylation
adding phosphate
total yield of atp in cr
around 38
name of the embedded protein that provides a channel for hydrogen ions to pass through the membrane
atp synthase
products of lactic acid fermentation
atp, NAD+, and lactic acid
products of alcoholic fermentation
atp, carbon dioxide, NAD+, and alcohol
during link reaction, pyruvate is decarboxylated. what molecule is removed
carbon dioxide
products of cell respiration
carbon dioxide, water, and atp
what is oxidative phosphorylation made up of
electron transport chain and chemiosmosis
reduction
electrons are gained, oxygen is removed, hydrogen is gained
oxidation
electrons are lost, oxygen is added, hydrogen is lost
products of anaerobic respiration by yeast
ethanol and carbon dioxide
what molecule from food is the primary reactant for glycolysis
glucose
reactants of cell respiration
glucose and oxygen
what is reduced and oxidized in glycolysis
glucose is oxidized and NAD+ is reduced
cr phase that occurs in the cytoplasm
glycolysis
cr phase that produces atp
glycolysis, krebs, and oxidative phosphorylation
what sequence describes cell respiration
glycolysis, link reaction, krebs cycle, and oxidative phosphorylation
in the final phase of cell respiration, where does the NADH and FADH2 come from to make atp
glycolysis, link, and krebs
when electrons are released from electron acceptor molecules, what is produced
hydrogen ions
what is an exergonic reaction
hydrolysis of atp
location of krebs cycle
inner matrix of mitochondria
location of link reaction
inner matrix of mitochondria
location of electron transport chain
inner mitochondrial matrix
direction of hydrogen ions through the membrane
innermembrane space through inner mitochondrial membrane to the matrix
cr phase that produces carbon dioxide
link and krebs
cr phase that occurs in the mitochondria
link, krebs, and oxidative phosphorylation
decarboxylation
losing a carbon
chain of enzyme controlled reaction
metabolic pathway
phases of cr that have water as a product
oxidative phosphorylation
phases of cr that have oxygen as a reactant
oxidative phosphorylation and link
what molecule is the final electron acceptor after the electrons have moved through the ETC
oxygen
3 components of an atp molecule
ribose, adenine, 3 phosphate
hydrolysis
use of water to split bonds in atp