Theory

CH5 - ENZYMES

(a) All organisms depend on enzymes.Define the term enzyme and describe the function of enzymes in living organisms......................................

2012 Summer

1

Theory

CH5 - ENZYMES

The enzyme lactase digests lactose into simple sugars.(a) Define the term _enzyme_.......................................................................

2013 Winter

1

Theory

CH5 - ENZYMES

(a) Enzymes are biological catalysts. (i) Define the term catalyst. [2] (ii) What are enzymes made of? Choose your answer from the list. carb...

2014 Summer

1

Theory

CH5 - ENZYMES

(a) Complete the following paragraph about enzymes. Choose words from this list. Use each word only once or not at all.activators catalysts enzymespro...

2015 Summer

3

Theory

CH5 - ENZYMES

(a) Catalase is an enzyme that catalyses the breakdown of hydrogen peroxide into water and oxygen.The effect of temperature on catalase activity was i...

2018 Winter

3

Theory

CH5 - ENZYMES

(a) Fig. 5.1 shows a diagram of part of the alimentary canal and associated structures.Fig. 5.1(i) State the ...

2018 Winter

3

Theory

CH5 - ENZYMES

(a) Pectinase is an enzyme that is used in the production of apple juice. A student investigated how pH affected the volume of apple juice produced wh...

2020 Winter

2

Theory

CH5 - ENZYMES

(a) (i) State the type of respiration in yeast that produces ethanol.....................................................................................

2018 Winter

2

Theory

CH5 - ENZYMES

(a) (i) The box on the left shows the beginning of a sentence. The boxes on the right show some sentence endings. Draw three straight lines to make th...

2022 Winter

2

Theory

CH5 - ENZYMES

(a) (i) The box on the left shows the beginning of a sentence.The boxes on the right show some sentence endings.Draw two straight lines from ‘Excret...

2020 Winter

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Worms come to the soil surface after heavy rain. Which characteristic of living organisms does this show?

2013 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which animal is not an arthropod?

2013 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a sea lion. Which labelled feature shows that this animal is a mammal?

2013 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal found in fresh water. Use the key to identify the animal.1 body divided into segments ............... go to 2 body not d...

2013 Summer

3

MCQ

CH8 - TRANSPORT IN PLANTS

Which statement about xylem is correct?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a bacterial cell.How is this cell different from a typical animal cell?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. In which labelled part of the cell is sugar made?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which of these tissues is not part of the organ with which it is paired?[Table_1]

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell. For which function is the cell adapted?

2013 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram represents two liquids, separated by a membrane through which osmosis can occur. What movement of molecules will occur?

2013 Summer

2