Theory

CH10 - DISEASES AND IMMUNITY

(a) Table 4.1 shows some of the top ten causes of death in parts of the world during 2010.[Table_1]cause of death | percentage of the deaths of adult ...

2013 Winter

2

Theory

CH10 - DISEASES AND IMMUNITY

(a) (i) Suggest why there are clear areas around some of the paper discs after 24 hours..................................................................

2019 Summer

2

Theory

CH10 - DISEASES AND IMMUNITY

(a) HIV is a pathogen that can cause AIDS.Table 3.1 shows the adult population size of a country and the estimated number of people infected with HIV/...

2020 Winter

1

Theory

CH10 - DISEASES AND IMMUNITY

(a) (i) State \textit{one} type of blood cell that is involved in the defence against disease............................................................

2018 Winter

2

Theory

CH10 - DISEASES AND IMMUNITY

(a) Cholera is an example of a transmissible disease.Define the term transmissible disease...............................................................

2019 Summer

4

Theory

CH10 - DISEASES AND IMMUNITY

Transmissible diseases are caused by pathogens.(a) Cholera is a transmissible disease that causes diarrhoea.State the type of organism that causes cho...

2021 Winter

2

Theory

CH10 - DISEASES AND IMMUNITY

(a) (i) State the type of pathogen that can be treated with antibiotics..................................................................................

2021 Winter

2

MCQ

CH10 - DISEASES AND IMMUNITY

The graph shows the effect of an antibiotic treatment on bacterial populations in the blood. What conclusion can be drawn from the graph?

2014 Summer

2

MCQ

CH10 - DISEASES AND IMMUNITY

Some organisms cause transmissible diseases.What is defined as a disease-causing organism?

2018 Winter

1

MCQ

CH10 - DISEASES AND IMMUNITY

Which is a mechanical barrier to pathogens?

2017 Winter

4

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 1.1 shows six species of reptiles.[Image_1: Fig. 1.1](i) Use the key to identify each species. Write the letter of each species (A–F) in th...

2020 Spring

6

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) A class of students measured their breathing rates during different activities. Average breathing rates for the class were calculated. Student A c...

2020 Spring

6

Theory

CH17 - INHERITANCE

(a) The length of hair in cats is controlled by a single gene.• The allele for short hair is dominant – $H$• The allele for long hair is recessi...

2020 Spring

1

Theory

CH16 - REPRODUCTION

(a) A study estimated the percentage effectiveness of different types of birth control. Table 4.1 shows examples of four different categories of birth...

2020 Spring

1

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

(a) Fig. 5.1 is a photograph of a giant panda. State the name of the vertebrate group that giant pandas belong to. ...................................

2020 Spring

2

Theory

CH8 - TRANSPORT IN PLANTS

(a) Complete the definition of the term transpiration. Transpiration is the loss of water vapour from plant leaves by ...................................

2020 Spring

3

Theory

CH7 - HUMAN NUTRITION

(a) Fig. 7.1 is a diagram of the alimentary canal and associated organs. The boxes on the left show the letters on Fig. 7.1.The boxes in the middle sh...

2020 Spring

2

Theory

CH21 - HUMAN INFLUENCES ON ECOSYSTEMS

(a) The box on the left contains the phrase ‘intensive livestock farming’.The boxes on the right contain some sentence endings.Draw two lines from...

2020 Spring

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows what happened in an experiment with plant seedlings. Which characteristic of living things made the seedlings grow towards the lig...

2020 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

A rat has the scientific name Rattus rattus.What do the two parts of this name refer to?

2020 Summer

2