Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

Modern technology can be used to increase the yield of crops.(a) The use of chemicals, such as fertilisers, herbicides and pesticides, is one of the d...

2009 Summer

2

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

There are many people in the world who are not able to digest lactose, a sugar in milk produced by cows, goats and sheep. These people do not make the...

2011 Summer

3

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

Genetic engineering can be used to improve crops. (a) Explain the meaning of the term genetic engineering. ............................................

2016 Summer

3

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

The development of biological washing powders using enzymes from bacteria is an example of biotechnology.(a) State two reasons why bacteria are useful...

2016 Summer

2

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) Respiration releases energy. Write the word equation for aerobic respiration. .......................................................................

2018 Summer

3

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) (i) How much juice had been extracted from the apples in Sample A after 2 minutes? ................................................ cm$^3$ [1] (ii...

2017 Summer

2

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) There are two types of cell division, meiosis and mitosis.Cells produced by each type of division have different characteristics and functions.Com...

2017 Summer

3

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) Define the term \emph{genetic engineering}.\text{....................................................................................................

2016 Summer

4

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) A person with diabetes may be unable to make insulin.(i) Insulin belongs to an important group of chemicals made by the body.State the name of thi...

2017 Winter

2

Theory

CH20 - BIOTECHNOLOGY AND GENETIC ENGINEERING

(a) Define the term genetic engineering..................................................................................................................

2016 Summer

4

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is defined as the chemical reactions that break down food molecules in cells to release energy?

2010 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an arthropod animal. Which features are characteristic of all arthropods?

2010 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a section through a flower. Using the key, identify this flower.1. sepals present ........................................... go to ...

2010 Summer

3

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which row shows the most likely number of chloroplasts in three types of cell in a leaf? [Table_1]

2010 Summer

1

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows some liver cells as they appear under the microscope. How many cell walls can be seen?

2010 Summer

3

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which row shows the structures present in plant and animal cells? [Table_1]

2010 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which structure is at a different level of organisation from the other three?

2010 Summer

1

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which diagram shows one organ only?

2010 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

On a dry, sunny day, how does water vapour move through the stomata of a leaf?

2010 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows an experiment using a potato.Which shows the result of the experiment after 24 hours?

2010 Summer

2