MCQ

CH11 - IMMUNITY

An antibiotic inhibits the formation of cross-links between the molecules that form cell walls in bacteria. Which statements explain why bacteria are...

2024 Summer

3

MCQ

CH11 - IMMUNITY

How does the antibiotic penicillin affect the metabolism of a bacterial cell?

2024 Summer

5

MCQ

CH11 - IMMUNITY

Scientists investigated the effect of increasing concentrations of an antibiotic on the development of antibiotic resistance in bacteria.The scientist...

2024 Summer

4

MCQ

CH11 - IMMUNITY

Scientists studied the multidrug-resistant bacterial infections in children caused by one type of bacteria between 2007 and 2015. The percentage of mu...

2024 Summer

4

MCQ

CH11 - IMMUNITY

What is the correct sequence of events in a primary immune response?

2024 Summer

3

MCQ

CH11 - IMMUNITY

Whooping cough is a highly infectious disease of the gas exchange system, caused by the bacterium Bordetella pertussis.Which method provides protectio...

2024 Summer

4

MCQ

CH11 - IMMUNITY

Monoclonal antibodies are now being used to treat some human diseases.What explains why monoclonal antibodies are suitable for this purpose?1 They can...

2024 Spring

3

MCQ

CH11 - IMMUNITY

Which statement about the properties of the antigen-binding sites in different antibody molecules is correct?

2024 Summer

3

MCQ

CH11 - IMMUNITY

What will be produced by the division of memory cells during a secondary immune response?

2024 Winter

4

MCQ

CH11 - IMMUNITY

Why is mitosis important in the immune response?

2024 Summer

6

MCQ

CH1 - CELL STRUCTURE

A cell organelle measures $4 \times 10^{-1}$ mm in diameter.What is the diameter in $\mu$m?

2011 Summer

2

MCQ

CH1 - CELL STRUCTURE

In the following table, which is the correct comparison between light and electron microscopes? [Table_1: light microscope and electron microscope co...

2011 Summer

3

MCQ

CH1 - CELL STRUCTURE

Which structures are present in a typical plant cell? [Table_1]

2011 Summer

3

MCQ

CH1 - CELL STRUCTURE

Plant cells are stained and then viewed through a light microscope.Which structures would be clearly visible at a magnification of ×400?

2011 Summer

2

MCQ

CH1 - CELL STRUCTURE

Which type of cell will contain the highest proportion of single membrane-bound structures?

2011 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Four different fruit juices, A, B, C and D, were tested with Benedict's solution. A second sample of each juice was hydrolysed and tested with Benedic...

2011 Summer

1

MCQ

CH2 - BIOLOGICAL MOLECULES

Which molecular bonds will be broken by hydrolysis when a molecule of glycogen is converted to glucose? [Table_1]

2011 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

Which set of statements correctly describes haemoglobin?

2011 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

Some foods contain 'hydrogenated vegetable oils'. These are unsaturated fats that have been converted to saturated fats.Which property of the fats wil...

2011 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

Which rows show the chemical groups present in the biological molecules listed?[Table_1]

2011 Summer

2