MCQ

CH10 - INFECTIOUS DISEASE

Which disease does \textit{Mycobacterium bovis} cause?

2024 Summer

3

MCQ

CH10 - INFECTIOUS DISEASE

A scientist investigated the effect of an antibiotic on the treatment of cholera.320 people with cholera were divided into two groups. One group was t...

2024 Summer

3

MCQ

CH10 - INFECTIOUS DISEASE

Which structures or compounds are present in a typical cell that can be killed by penicillin?1. circular DNA2. cytoplasmic DNA3. 70S ribosomes4. pepti...

2024 Winter

2

MCQ

CH10 - INFECTIOUS DISEASE

Antibiotic-resistant strains of \textit{Mycobacterium tuberculosis} are a major problem when treating TB. A new antibiotic, teixobactin, could be very...

2024 Spring

4

MCQ

CH10 - INFECTIOUS DISEASE

Three statements about cholera and its transmission are listed. 1 The pathogen causes watery faeces. 2 Frequent air flight has led to mobile populatio...

2024 Winter

2

Theory

CH10 - INFECTIOUS DISEASE

The Zika virus is a pathogen that can infect human cells. (a) Fig. 1.1 is a drawing of the structure of a Zika virus. (i) In Fig. 1.1, structure A ...

2024 Summer

2

Theory

CH10 - INFECTIOUS DISEASE

People who become infected with human immunodeficiency virus (HIV) are at risk of developing HIV/AIDs, particularly if antiretroviral therapy (ART) is...

2024 Winter

3

Theory

CH10 - INFECTIOUS DISEASE

(a) Fig. 3.1 is a photomicrograph of a transverse section through a region of the wall of the bronchus in the gas exchange system. [Image_1: Fig. 3.1...

2024 Winter

4

Theory

CH10 - INFECTIOUS DISEASE

(a) A class of students was studying the features of some human pathogens. One of the students constructed a flow chart to identify four different hum...

2024 Summer

3

Theory

CH10 - INFECTIOUS DISEASE

Malaria is an infectious disease caused by the protocist, Plasmodium.As part of its lifecycle, Plasmodium infects human red blood cells. Researchers c...

2024 Winter

2

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