Theory

CH4 - BIOLOGICAL MOLECULES

A protease is added to a suspension of egg protein in a test-tube and kept at 37°C. After 8 minutes, the protein changes from cloudy to transparent. ...

2010 Summer

1

Theory

CH4 - BIOLOGICAL MOLECULES

Which row correctly identifies the chemical elements found in proteins?[Table_1][Table_1]:| | carbon | hydrogen | oxygen | nitrogen ||-------|--...

2012 Summer

3

Theory

CH4 - BIOLOGICAL MOLECULES

Which solutions are used for testing for protein, reducing sugar and starch?[Table_1]

2010 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

Which nutrient produces a purple colour when mixed with biuret solution? A. fat B. protein C. reducing sugar D. starch

2012 Winter

1

Theory

CH4 - BIOLOGICAL MOLECULES

Which row correctly identifies the chemical elements found in proteins?[Table_1]Table Key:✓ = present✗ = absent

2012 Summer

3

Theory

CH4 - BIOLOGICAL MOLECULES

Nutrients are made up of smaller basic units. Nutrients can be identified by food tests. Which nutrient is a protein?[Table_1: nutrient | smaller basi...

2011 Summer

1

Theory

CH4 - BIOLOGICAL MOLECULES

Nutrients are made up of smaller basic units. Nutrients can be identified by food tests.Which nutrient is a protein?nutrient | smaller basic units | f...

2011 Summer

1

Theory

CH4 - BIOLOGICAL MOLECULES

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

2011 Winter

1

Theory

CH4 - BIOLOGICAL MOLECULES

A protease is added to a suspension of egg protein in a test-tube and kept at 37°C. After 8 minutes, the protein changes from cloudy to transparent. ...

2010 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

Which solutions are used for testing for protein, reducing sugar and starch? [Table_1] Table: | | test for protein | test for reducing sugar | te...

2010 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which organisms carry out respiration, growth, movement and excretion?

2018 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal whose scientific name is _Falco peregrinus_. To which species does it belong?

2018 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What kind of skin do amphibians have?

2018 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a flowering plant.Use the key to identify the plant.

2018 Summer

1

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

In which part of the cell does aerobic respiration occur?

2018 Summer

1

MCQ

CH8 - TRANSPORT IN PLANTS

Why do some root cells have root hairs?

2018 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Which words correctly complete the paragraph? Diffusion may be defined as the net movement of particles from a region of their ......1...... concentr...

2018 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

Which part of a plant root hair is partially permeable?

2018 Summer

2

MCQ

CH4 - BIOLOGICAL MOLECULES

The table shows the results of food tests carried out on a fruit.[Table_1]What did the fruit contain?

2018 Summer

1

MCQ

CH5 - ENZYMES

An experiment was carried out to investigate the effect of pH on enzyme action. The graph shows the results. What are the labels for the x-axis and...

2018 Summer

2