Unit 1 –Chapter 7- Cellular Respiration- CfE Higher Human Biology
Eyeballs
50 grams
I am the name given to the series of metabolic
pathways that bring about the release of
energy from a foodstuff
Oxygen
I am the name given to the addition of a
phosphate group to a molecule
I am what pyruvate gets converted to during
the citric acid cycle
Key Regulatory Point
I am the name of the first stage of respiration
I am what inhibits the action of
phosphofructokinase enzyme at stage 3 of
glycolysis
Glucose-1-phosphate
I am the quantity of ATP present in the body
I am the enzyme added to glucose-1-phosphate
to make starch
NAD
I am the enzyme that releases H+ions from the
substrate during glycolysis
Step 1 and step 3
I am the second stage of respiration
I am the enzyme used in phosphorylation in
step 3 of glycolysis
Dehydrogenase Enzyme
Cellular Respiration
I am the high energy compound regenerated
from ADP + Pi
1 ATP
I am the name of the membrane enzyme
present in the mitochondria that drives the
reaction between ADP and Pi
Energy investment phase and energy payoff
phase
I am the two steps within the energy
investment phase where phosphorylation
occurs
Phosphofructokinase
I am the net number of ATP molecules
produced during glycolysis
Citric Acid Cycle
I am what needs to be present for aerobic
respiration to proceed after glycolysis
Potato Phosphorylase
ATP
2ATP
I am the name of the coenzyme molecule that
H+ ions are passed to during glycolysis for
transfer to the electron transfer stage
Phosphorylation
I am the energised form of glucose which is
made following phosphorylation
Carbon Dioxide and acetyl group
I am what acetyl coenzyme A joins with during
the citric acid cycle to form citrate
Central Matrix of the Mitochondria
I am the name of another coenzyme(apart from
NAD) present in the citric acid cycle that
accepts H+ ions and electrons
Glycolysis
I am the two phases of glycolysis
Amino acids
I am the process by which amino acids are
broken down into urea and respiratory
pathway intermediates
High concentrations of ATP and High
Concentrations of Citrate
I am what happens to the rate of glycolysis
when levels of ATP and Citrate fall again after
previously being high and inhibiting
phosphofructokinase
Water
I am the names of some other respiratory
substrates apart from glucose
Energy and phosphate which are used to
convert ADP to ATP
FAD
I am how much ATP is produced during the
citric acid cycle
Oxaloacetate
I am the location where the citric acid cycle
takes place
ATP Synthase
I am the name of the product made when the
final hydrogen acceptor, oxygen combines with
a pair of hydrogen ions
Starch, glycogen, maltose, sucrose, fats and
protein
I am the amount of time that the creatine
phosphate system can support strenuous
activity for
I am the components that proteins are broken
down into
Glycolysis rate increases again
Deamination
I am the name of the chemical which releases
energy for repetitive muscular contraction
I am what the third step in glycolysis is
regarded as because it regulates the activity of
the phosphofructokinase enzyme
Lactic Acid
ATP is broken down to release energy and
phosphate which are used to create creatine
phosphate by phosphorylation
I am what happens to muscles as lactic acid
builds up
I am the type of respiration that occurs if there
is not enough oxygen getting to the cells during
intensive exercise
Around 10 secs
Creatine Phosphate
I am what happens to creatine during times of
rest
Muscle fatigue and an oxygen debt builds up
I am what is released by creatine phosphate in
muscle cells during strenuous muscular activity
Anaerobic Respiration
I am the number of ATPs made during aerobic
and anaerobic respiration respectively
Myoglobin
I am what pyruvate is broken down into during
anaerobic respiration
38ATPs and 2ATPs
I am the type of muscle fibre that can contract
slowly but can sustain contractions for longer
and are therefore useful in endurance activities
such as rowing and long-distance running
I am the name of the oxygen-storing protein
present in muscle cells that has a stronger
affinity for oxygen than haemoglobin
Fast-twitch muscle fibres
Slow Twitch muscle fibres
I am an example of where fast twitch muscle
fibres are found whereas slow twitch muscle
fibres are found in the muscles of the back that
are responsible for posture
I am the type of muscle fibres that are good for
short bursts of activity as they contract quickly