MCQ

CH8 - TRANSPORT IN MAMMALS

The following tissues carry an electrical impulse during the cardiac cycle.1. atrioventricular node2. muscle wall of atria3. Purkyne tissue4. sinoatri...

2024 Summer

2

MCQ

CH8 - TRANSPORT IN MAMMALS

The diagram shows the internal structure of the mammalian heart. Which letter identifies the location of the atrioventricular node?

2024 Summer

2

MCQ

CH8 - TRANSPORT IN MAMMALS

The graph shows changes in the volume of the ventricles during a single cardiac cycle.Which row is correct for the atrioventricular valve at P and for...

2024 Summer

2

MCQ

CH8 - TRANSPORT IN MAMMALS

The diagram shows pressure changes in the left side of the heart during the cardiac cycle. What happens in the heart at X?

2024 Summer

2

MCQ

CH8 - TRANSPORT IN MAMMALS

The graph shows how changes in oxygen concentration affect the percentage oxygen saturation of human haemoglobin and cat haemoglobin under normal phys...

2024 Summer

4

MCQ

CH8 - TRANSPORT IN MAMMALS

Which statement is correct about how oxygen combines with haemoglobin?

2024 Summer

6

MCQ

CH8 - TRANSPORT IN MAMMALS

Which components of blood are present in tissue fluid? [Table_1]

2024 Summer

3

MCQ

CH8 - TRANSPORT IN MAMMALS

Some babies are born with a hole between the right and left atria. These babies are found to have an increased number of red blood cells.What is the r...

2024 Winter

4

MCQ

CH8 - TRANSPORT IN MAMMALS

An increase in carbon dioxide in human blood shifts the oxyhaemoglobin dissociation curve to the right.What is the explanation for this effect?

2024 Winter

2

MCQ

CH8 - TRANSPORT IN MAMMALS

One type of congenital heart defect is where the left and right atria are not completely separated. This is called an atrial septal defect (ASD). ASD ...

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

Which statements about resolution and magnification are correct?[Table_1]

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

An eyepiece graticule has a scale with 100 divisions. A stage micrometer has a scale with 50 divisions, each of which is 0.040 mm apart. Using a ×40 ...

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

A prokaryotic cell which is 1 µm in diameter, is magnified 50000 times in an electron micrograph. What is the diameter of the cell in the electron m...

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

A scientist carried out an experiment to separate cell structures in animal cells. The cells were broken open to release the cell structures. This ext...

2018 Summer

2

MCQ

CH1 - CELL STRUCTURE

Radioactively-labelled nucleotides are introduced into a cell.In which cell structures will the radioactivity first become concentrated?

2018 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

What is the general formula for amylose?

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagram shows relationships between some important molecules and bonds. What is represented by circles numbered 1, 2 and 3?

2018 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

In unsaturated lipid molecules, where are double bonds located?

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Phospholipids and triglycerides are important biological molecules.Which properties are correct for these molecules?[Table_1]

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagrams show two arrangements of amino acids in a protein. Which row correctly names the bonds at S or T?

2018 Summer

3