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

Theory

CH7 - TRANSPORT IN PLANTS

(a) The structure of a phloem sieve tube element is adapted to its function.Each of explanations A to F describes how a particular structural feature ...

2020 Spring

3

Theory

CH3 - ENZYMES

Phosphatidate phosphatase (PAP) enzymes have an important role in lipid metabolism.The reaction catalysed by PAP is shown in Fig. 2.1.Experiments were...

2020 Spring

3

Theory

CH8 - TRANSPORT IN MAMMALS

During one cardiac cycle:blood enters the heart from the lungs and from the rest of the bodyblood leaves the heart to be transported to the lungs and ...

2020 Spring

2

Theory

CH9 - GAS EXCHANGE AND SMOKING

(a) When a section of lung tissue is viewed using a light microscope, it is possible to identify the trachea, the bronchus, the bronchioles and the al...

2020 Spring

3

Theory

CH11 - IMMUNITY

Myasthenia gravis and HIV/AIDS both involve disorders of the immune system.(a) Outline why myasthenia gravis is described as a disorder of the immune ...

2020 Spring

3

Theory

CH1 - CELL STRUCTURE

Fig. 6.1 is a transmission electron micrograph of a plant parenchyma cell.(a) The external environment of the parenchyma cell has a higher water poten...

2020 Spring

3

Theory

CH14 - HOMEOSTASIS

(a) Fig. 1.1 represents part of the wall of a proximal convoluted tubule (pct) in a kidney nephron.[Image_1: Fig. 1.1](i) Name the features of the wal...

2020 Spring

1

Theory

CH11 - IMMUNITY

Severe combined immunodeficiency (SCID) is a group of life-threatening diseases. SCID is caused by mutations that prevent the normal function of the i...

2020 Spring

2

Theory

CH16 - INHERITED CHANGE

Flowers of the common morning-glory plant, Ipomoea purpurea, can have several different phenotypes. An example of these flowers is shown in Fig. 3.1.[...

2020 Spring

2

Theory

CH16 - INHERITED CHANGE

The rainbow trout, Oncorhynchus mykiss, is a fish that is bred in commercial fish farms. Rainbow trout that have a blue-silver colour are sold at a hi...

2020 Spring

1