Theory

CH14 - CO-ORDINATION AND RESPONSE

The graph shows the rates of sweat production and urine production at different environmental temperatures.Which statement is correct?A. As the temper...

2012 Winter

2

Theory

CH14 - CO-ORDINATION AND RESPONSE

What is true for a runner, at the end of a marathon race, in a hot climate?A. sweating and vasoconstrictionB. sweating and vasodilationC. vasoconstric...

2009 Summer

2

Theory

CH14 - CO-ORDINATION AND RESPONSE

A man injures his arm in an accident. Afterwards, he can feel objects touching his hand, but he cannot move his hand away from them.What could cause t...

2012 Winter

2

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows some blood vessels near the surface of the skin. If vasoconstriction occurs at X, what happens to the blood flow at Y and Z? [Ta...

2010 Winter

4

Theory

CH14 - CO-ORDINATION AND RESPONSE

When a person is frightened, adrenalin is released by the adrenal glands. What are the effects of the adrenalin?[Table_1]

2009 Summer

2

Theory

CH14 - CO-ORDINATION AND RESPONSE

(a) Define the term sensitivity..........................................................................................................................

2010 Summer

3

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows a neurone carrying an impulse. Which row describes the type of neurone and the direction of impulse? [Table_1]

2010 Winter

3

Theory

CH14 - CO-ORDINATION AND RESPONSE

(a) Define the term sensitivity..........................................................................................................................

2011 Winter

3

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows some bones and muscles in a leg of a human. What happens to muscle Y and to the leg at joint Z, when muscle X contracts?[Table_1]mus...

2010 Winter

3

Theory

CH14 - CO-ORDINATION AND RESPONSE

The diagram shows a cell. What type of cell is shown?A ciliated cellB motor neuroneC relay neuroneD sensory neurone

2011 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram illustrates some of the processes carried out by living organisms. Which characteristic of living organisms is represented by arrow X? ...

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a correct way of naming a species, according to the binomial system? A. Homo sapiens B. Homo Sapiens C. human being D. sapiens

2015 Summer

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Diagram of Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of these arthropods ar...

2015 Summer

2

Theory

CH4 - BIOLOGICAL MOLECULES

The key can be used to distinguish between four different chemical substances. Use the key to identify which substance could be a protein. 1 contain...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells from a leaf.Which labelled part would also be found in liver cells?

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows part of a leaf in cross-section.Structures X and Y are both part of the sameA. cell.B. organ.C. tissue.D. vessel.

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. Which features show that it is a plant cell?A It has a cell wall and a vacuole.B It has a nucleus and cytoplasm.C It h...

2015 Summer

2

Theory

CH8 - TRANSPORT IN PLANTS

In a section through a plant, a student found a group of long, microscopic structures. The structures lacked end walls, cytoplasm and nuclei.Which ide...

2015 Summer

2

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell cut in half. What does this diagram indicate about the structure of this cell?A The cell has a cell wall.B The ...

2015 Summer

2

Theory

CH6 - PLANT NUTRITION

How do carbon dioxide and oxygen move in and out of a mesophyll cell?A. active transportB. diffusionC. respirationD. transpiration

2015 Summer

1