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

2

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

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Worms come to the soil surface after heavy rain.Which characteristic of living organisms does this show?A growthB nutritionC reproductionD sensitivity

2013 Summer

3

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which animal is \textbf{not} an arthropod?[Image with options A, B, C, D]

2013 Summer

3

Theory

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

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal found in fresh water. [Image]Use the key to identify the animal.1 body divided into segments ............... go to 2 bo...

2013 Summer

3

Theory

CH8 - TRANSPORT IN PLANTS

Which statement about xylem is correct? A. It carries sucrose. B. It converts light energy to chemical energy. C. It divides actively to help the p...

2013 Summer

4

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a bacterial cell.How is this cell different from a typical animal cell?A. It has a cell membrane.B. It has cytoplasm.C. It has no ch...

2013 Summer

2

Theory

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

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which of these tissues is not part of the organ with which it is paired?[Table_1]tissueorgan containing this tissueAciliatedrootBmuscleintestineCnervo...

2013 Summer

3

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell.For which function is the cell adapted?A absorption of waterB contraction of musclesC movement of dust particlesD...

2013 Summer

3

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram represents two liquids, separated by a membrane through which osmosis can occur.Key- ○ molecule of water- ◎ molecule of dissolved subs...

2013 Summer

3