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

Theory

CH1 - CELL STRUCTURE

(a) (i) Name the cells labelled A and the structure labelled B.A ........................................................................................

2013 Summer

2

Theory

CH10 - INFECTIOUS DISEASE

(a) Explain how the virus that causes measles is transmitted.............................................................................................

2013 Summer

2

Theory

CH7 - TRANSPORT IN PLANTS

(a) Transpiration is often described as an 'inevitable consequence of gas exchange in plants'.Explain what is meant by this statement....................

2013 Summer

1

Theory

CH6 - NUCLEIC ACIDS AND PROTEIN SYNTHESIS

Fig. 4.1 shows the two base pairs in a DNA molecule.(a) Name the bases labelled J and K and the bond labelled L.J .......................................

2013 Summer

1

Theory

CH4 - CELL MEMBRANES AND TRANSPORT

Fig. 5.1 shows a section of a cell surface membrane.(a) State the functions of structures P, Q and R.P ..................................................

2013 Summer

2

Theory

CH5 - THE MITOTIC CELL CYCLE

(a) Explain how uncontrolled cell division can result in cancer. ........................................................................................

2013 Summer

2

Theory

CH5 - THE MITOTIC CELL CYCLE

(a) The cells in Fig. 1.1 are from the same organism and look the same. The cells in Fig. 1.1(a) have been produced by mitosis and the cells in Fig. 1...

2013 Summer

2

Theory

CH7 - TRANSPORT IN PLANTS

Fig. 2.1 shows xylem tissue in a longitudinal section through the stem of a dicotyledonous plant. [Image_1: Fig. 2.1] (a) Describe and explain how the...

2013 Summer

2

Theory

CH10 - INFECTIOUS DISEASE

(a) Explain why tuberculosis (TB) is known as an infectious disease......................................................................................

2013 Summer

3

Theory

CH2 - BIOLOGICAL MOLECULES

Polysaccharides are synthesised by condensation reactions between monosaccharide or disaccharide subunits (monomers).(a) Name the type of bond formed ...

2013 Summer

3