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WorksheetsAICE Bio- Unit 8
Total questions: 41
Worksheet time: 21mins
Size of your heart is about the size of
An apple
Human fist
A chickpea
A football
Which side of the heart pumps blood that contains oxygen?
Left
Right
Which is correct for pulmonary circulation?
Oxygenated blood from the heart to body tissues
Deoxygenated blood from the heart to the body
Oxygenated blood from the lungs to the body
Deoxygenated blood from the heart to the lungs
Which chamber of the heart will have the thickest walls?
Right atrium
Right ventricle
Left atrium
Left ventricle
Which is correct for atrial systole?
Ventricles filled with blood
Atrioventricular valves are closed
Pressure in ventricles
Atria fill with blood
Stimulating in what node will result in the ventricles contracting?
Sinoatrial Node
Atrioventricular Node
Purkyne tissue
What valves are open during ventricular systole?
Atrioventricular Valves
Semilunar valves
Which will occur immediately after atrial systole?
Ventricular systole
Ventricular diastole
Where is the highest pressure located in the heart during ventricular diastole?
Right Atrium
Left Atrium
Aorta
Right Ventricle
Left Ventricle
This initiates the action potential that causes the heart to beat
Inferior vena cava
Atrioventricular node (AV node)
Superior vena cava
Sinoatrial node (SA node)
Identify cell 1.
Red Blood Cell
Lymphocyte
Monocyte
Neutrophil
Three areas involved in the control of heart action are listed. In which order are they involved?
1, 2, 3
1, 3, 2
3, 1, 2
3, 2, 1
The left ventricle must force blood into all the capillaries of the lungs
the left ventricle doesn't skip leg day
This is false, the walls of the right ventricle are thicker
Blood from the left ventricle is pumped throught the entire body
What prevents blood from flowing back into the atria when the ventricles contract?
semilunar valves
sinoatrial node
atrioventricular node
tricuspid and bicuspid valves
Which blood VESSEL has the thickest walls?
A
B
C
D
Which stage of the cardiac cycle is occurring in the PINK, DOTTED box?
Atrial systole
Atrial diastole
Ventricular systole
Ventricular diastole
These carry blood towards the heart
arteries
veins
The diagrams show the amino acid serine. Which circled area is different in all other amino acids?
The diagram is an incomplete summary of the role of haemoglobin in the carriage of CO2. Which letter shows the Chloride Shift?
A
B
C
D
Identify cell 2.
Red Blood Cell
Lymphocyte
Monocyte
Neutrophil
Which reactions will be taking place in blood that is passing through active tissues?
1, 2, 3 and 4
1, 2 and 4 only
1, 3 and 4 only
2 and 3 only
The diagram is an incomplete summary of the role of haemoglobin in the carriage of CO2. What is formed at D?
Carbonic Acid
Carbaminohaemoglobin
Hydrogencarbonate ions
Carboxyhaemoglobin
Identify cell 3.
Red Blood Cell
Lymphocyte
Monocyte
Neutrophil
The graph shows the oxygen dissociation curve in different CO2 concentrations. Which conditions could change the shape of curve 1 to the shape of curve 2?
High CO2 concentration causing decreasing pH
High CO2 concentration causing increasing pH
Low CO2 concentration causing increasing pH
Low CO2 concentration causing decreasing pH
Which statements about the formation of haemoglobinic acid are correct?
1, 2 and 3
1 and 2 only
1 only
2 and 3 only
What is the role of the chloride shift?
Stabilizes temperature imbalances
Stabilizes electrical imbalances within red blood cells
Stabilizes protein structure
Salty
The diagram is an incomplete summary of the role of haemoglobin in the carriage of CO2. What process is occurring at C? (both)
Active transport
Endocytosis
Diffusion
Facilitated Diffusion
The diagram is an incomplete summary of the role of haemoglobin in the carriage of CO2. What enzyme catalyzes the reaction at B?
Haemoglobinic acid
Catalase
Carbonic amylase
Carbonic Anhydrase
