Compare and contrast the
heart and circulatory system Explain why these risk The triglyceride in the
of a snake with that of a factors can cause peripheral diagram can combine with
human. (4) nerve cells to die. (3) protein to form a
lipoprotein.
-both have a double -increased risk of damage to Explain the effect that large
circulatory system cardiovascular system e.g. quantities of this lipoprotein
-both have 2 atria, arteries, atheromas in arteries would have on blood
veins, capillaries -reduced blood flow to cholesterol levels. (4)
peripheral nerce so less
-snake heart only has 1 oxygen and glucose supplied -it would increase blood
ventricle whereas human -so nerve cells do not get cholesterol
heart has 2 enough oxygen and glucose -as the triglyceride is
-in snake the oxygenated and for respiration and so die saturated
deoxygenated blood mix -so the lipoprotein is an LDL
(hole in septum), whereas -LDL transport cholesterol
they do not mix in a human -they bind to receptors on
(no hole in septum) the cell membrane
Some flying insects store
trehalose and glycogen in
their wing muscles.
Trehalose is broken down to
glucose by the enzyme
trehalase.
Compare and contrast the
Insect flight uses a lot of
structures of trehalose and
energy. Explain the
Explain the importance of maltose. (2)
advantage of insects storing
the relationship, shown in
both trehalose and glycogen.
the graph, to capillary -both formed from 2
(4)
function. (2 molecules of alpha glucose,
contain glycosidic bond
-glucose used in respiration
-capillary has a small lumen -maltose has 1-4 glycosidic
to provide energy and ATP
diameter so blood flow will bond, trehalose has a 1-1
-glycogen is a polymer of
be slow glycosidic bond, one of the
glucose
-allows more time for glucose monomers is
-glycogen contains branches
diffusion and exchange of inverted.
so it can be rapidly
substances between blood hydrolysed to release
and cells
glucose rapidly
-breakdown of trehalose
makes 2 molecules of
glucose available
, Explain the relationship Devise a procedure that
between the composition of could have been used to
Explain what is likely to the starch and the rate of produce the results shown in
happen to the BMI values hydrolysis by enzymes. (4) the graph. (5)
for the females in
this investigation. (2) -as amylose content -immobilise the Daphnia on
increases, the % percentage a cavity slide using cotton
-BMI of 1 would decrease, 2 of starch hydrolysed wool
would stay the same, 3 decreases -use the concentrations
would increase -the less amylose present the given in the graph
-excess energy intake would greater the proportion of
be converted to fat reserves -ensure the acclimatisation
amylopectin time in all control /
which would increase the -amylose is unbranched and
mass and hence the BMI dopamine / dopamine and
amylopectin is branched caffeine solutions, are the
-amylopectin contains 1-4 same
and 1-6 glycosidic bonds -view under microscope,
-these branches increase the count the number of heart
rate of hydrolysis beats in 20 seconds by
plotting dots on paper in an
S, multiply by 3 to get bpm
-use Daphnia of the same
species/age/sex/size
-repeat each and calculate a
mean and SD
, Analyse the data to assess
the effect of CVX on the rate
of blood clotting. (5)
-As CVX concentration
increases, the rate of
thrombin concentration Explain the advantages of
increases using this type of frog for
-the relationship between this caffeine investigation.
CVX conc and the rate of (2)
Which labelled parts of the
thrombin production is not blood vessel contain
linear -transparent body so the
collagen? (1)
-there is little difference heart is visible non-invasive
between the control and 0.5 procedure
Q
-as the SD overlaps -aquatic animal so caffeine
-greatest increase is from 5 can diffuse through the skin
to 50
-greater thrombin production
leads to a faster conversion
of fibrionogen to fibri
-this leads to faster clotting
of blood
heart and circulatory system Explain why these risk The triglyceride in the
of a snake with that of a factors can cause peripheral diagram can combine with
human. (4) nerve cells to die. (3) protein to form a
lipoprotein.
-both have a double -increased risk of damage to Explain the effect that large
circulatory system cardiovascular system e.g. quantities of this lipoprotein
-both have 2 atria, arteries, atheromas in arteries would have on blood
veins, capillaries -reduced blood flow to cholesterol levels. (4)
peripheral nerce so less
-snake heart only has 1 oxygen and glucose supplied -it would increase blood
ventricle whereas human -so nerve cells do not get cholesterol
heart has 2 enough oxygen and glucose -as the triglyceride is
-in snake the oxygenated and for respiration and so die saturated
deoxygenated blood mix -so the lipoprotein is an LDL
(hole in septum), whereas -LDL transport cholesterol
they do not mix in a human -they bind to receptors on
(no hole in septum) the cell membrane
Some flying insects store
trehalose and glycogen in
their wing muscles.
Trehalose is broken down to
glucose by the enzyme
trehalase.
Compare and contrast the
Insect flight uses a lot of
structures of trehalose and
energy. Explain the
Explain the importance of maltose. (2)
advantage of insects storing
the relationship, shown in
both trehalose and glycogen.
the graph, to capillary -both formed from 2
(4)
function. (2 molecules of alpha glucose,
contain glycosidic bond
-glucose used in respiration
-capillary has a small lumen -maltose has 1-4 glycosidic
to provide energy and ATP
diameter so blood flow will bond, trehalose has a 1-1
-glycogen is a polymer of
be slow glycosidic bond, one of the
glucose
-allows more time for glucose monomers is
-glycogen contains branches
diffusion and exchange of inverted.
so it can be rapidly
substances between blood hydrolysed to release
and cells
glucose rapidly
-breakdown of trehalose
makes 2 molecules of
glucose available
, Explain the relationship Devise a procedure that
between the composition of could have been used to
Explain what is likely to the starch and the rate of produce the results shown in
happen to the BMI values hydrolysis by enzymes. (4) the graph. (5)
for the females in
this investigation. (2) -as amylose content -immobilise the Daphnia on
increases, the % percentage a cavity slide using cotton
-BMI of 1 would decrease, 2 of starch hydrolysed wool
would stay the same, 3 decreases -use the concentrations
would increase -the less amylose present the given in the graph
-excess energy intake would greater the proportion of
be converted to fat reserves -ensure the acclimatisation
amylopectin time in all control /
which would increase the -amylose is unbranched and
mass and hence the BMI dopamine / dopamine and
amylopectin is branched caffeine solutions, are the
-amylopectin contains 1-4 same
and 1-6 glycosidic bonds -view under microscope,
-these branches increase the count the number of heart
rate of hydrolysis beats in 20 seconds by
plotting dots on paper in an
S, multiply by 3 to get bpm
-use Daphnia of the same
species/age/sex/size
-repeat each and calculate a
mean and SD
, Analyse the data to assess
the effect of CVX on the rate
of blood clotting. (5)
-As CVX concentration
increases, the rate of
thrombin concentration Explain the advantages of
increases using this type of frog for
-the relationship between this caffeine investigation.
CVX conc and the rate of (2)
Which labelled parts of the
thrombin production is not blood vessel contain
linear -transparent body so the
collagen? (1)
-there is little difference heart is visible non-invasive
between the control and 0.5 procedure
Q
-as the SD overlaps -aquatic animal so caffeine
-greatest increase is from 5 can diffuse through the skin
to 50
-greater thrombin production
leads to a faster conversion
of fibrionogen to fibri
-this leads to faster clotting
of blood
