MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

The diagram shows how nicotine is transported from the blood plasma into a cell using a type of cotransporter mechanism.In the phloem tissue, there is...

2024 Summer

4

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

Which process always takes place without the involvement of energy from ATP?

2024 Summer

3

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

What is the correct range of measurements for the width of the cell surface membrane?

2024 Spring

3

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

The diagram shows the entry of molecule X into a cell. Which row shows a property of molecule X and the effect of the concentration of ATP in the cyto...

2024 Summer

3

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

A student observed the effect of two different concentrations of salt solution on blood cells.The student added each concentration of salt solution to...

2024 Summer

4

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

Where in the cell surface membrane are the carbohydrate chains of glycoproteins and glycolipids mainly located? [Table_1]

2024 Spring

3

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

The electron micrograph shows some human blood cells.Which row correctly shows the net movement of water by osmosis and the water potential of the cyt...

2024 Summer

4

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

The diagram shows part of a cell surface membrane. Which row correctly identifies the molecules labelled 1 and 2?

2024 Winter

3

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

Sodium ions can enter cells across the cell surface membrane.Which methods could be used by sodium ions to cross a cell surface membrane and enter a c...

2024 Spring

4

MCQ

CH4 - CELL MEMBRANES AND TRANSPORT

Which statement correctly describes facilitated diffusion?

2024 Summer

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