Theory

CH4 - BIOLOGICAL MOLECULES

Fig. 2.1 is a diagram of the alimentary canal.(a) Table 2.1 shows some of the processes that occur in the alimentary canal.Use the letters in Fig. 2.1...

2017 Summer

3

Theory

CH4 - BIOLOGICAL MOLECULES

Nervous coordination uses specialised cells called neurones.Fig. 2.1 is a diagram showing three neurones.(a) State the name of the type of neurone lab...

2019 Winter

2

Theory

CH4 - BIOLOGICAL MOLECULES

(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

Theory

CH4 - BIOLOGICAL MOLECULES

One type of nuclear division produces genetically identical cells.(a) State the name and one role of the type of nuclear division that produces geneti...

2022 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

(a) Large molecules are made from smaller molecules.State the name of the \textbf{two} small molecules that make fats and oils.1 ........................

2022 Winter

2

MCQ

CH4 - BIOLOGICAL MOLECULES

The diagram shows two food molecules before and after they have been digested by enzymes. What identifies the products of fat digestion?

2013 Winter

3

MCQ

CH4 - BIOLOGICAL MOLECULES

Four foods were tested forfat (using ethanol),protein (using the biuret test),reducing sugar (using Benedict’s solution),starch (using iodine soluti...

2009 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

Four foods were tested for each of the following nutrients: fat (using ethanol);protein (using the biuret test);reducing sugar (using Benedict’s sol...

2013 Winter

1

MCQ

CH4 - BIOLOGICAL MOLECULES

A student set up a test-tube containing starch, water and amylase. How could the student test whether the amylase had digested all the starch?

2013 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

A human cell contains a length of DNA that carries the code for making which substance?

2013 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a leaf on a plant. Which characteristic of life is represented by this diagram?

2019 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows how Homo sapiens (modern people) could have evolved from earlier ancestors. Which statement about modern people and their ancesto...

2019 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an insect. What is the insect?1. insect has no wings ....................................... go to 2   insect has win...

2019 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which features are possessed by all plant cells? [Table_1]

2019 Summer

3

MCQ

CH7 - HUMAN NUTRITION

Which organ is part of the digestive system?

2019 Summer

1

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows a test-tube containing clear jelly. A drop of blue ink is injected into the middle of the jelly. The blue colour of the ink sprea...

2019 Summer

1

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The apparatus shown was set up.Some hours later, the water in the beaker had turned blue, and the liquid in the glass tube had moved upwards.Which pro...

2019 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

Four solutions were tested to see whether they contained protein, starch or glucose.The colours of the solutions after the tests are recorded in the t...

2019 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

Small molecules are used as the basic units in the synthesis of large food molecules.Which statement is correct?

2019 Summer

3

MCQ

CH5 - ENZYMES

Which graph shows the effect of pH on enzyme activity?

2019 Summer

2