Theory

CH9 - TRANSPORT IN ANIMALS

The diagram shows the human heart.Which two chambers contract at the same time?A W and X B W and Z C X and Z D X and Y

2009 Summer

Theory

CH9 - TRANSPORT IN ANIMALS

Fig. 2.1 shows the blood supply for the liver of a mammal. (a) Blood from organ X is carried to the liver by blood vessel Y. Name (i) organ X, ..........

2009 Summer

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Fig. 3.1 shows the activity of an enzyme produced by bacteria that live in very hot water.[Image_1: Graph showing enzyme activity]Using the inform...

2009 Summer

Theory

CH9 - TRANSPORT IN ANIMALS

What describes the aortic (semi-lunar) and bicuspid (mitral) heart valves when the left ventricle is relaxing?[Table_1]Table 1:| | aortic valv...

2009 Winter

Theory

CH9 - TRANSPORT IN ANIMALS

The diagram shows the blood circulatory system of a human. How many times does the blood pass through the heart on its way from the kidneys to the aor...

2009 Winter

Theory

CH9 - TRANSPORT IN ANIMALS

What describes the aortic (semi-lunar) and bicuspid (mitral) heart valves when the left ventricle is relaxing?[Table_1]aortic valvebicuspid valveAclos...

2009 Winter

Theory

CH9 - TRANSPORT IN ANIMALS

The diagram shows the blood circulatory system of a human. How many times does the blood pass through the heart on its way from the kidneys to the aor...

2009 Winter

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Mammals have a double circulatory system. Explain what is meant by a double circulatory system. ...................................................

2009 Winter

Theory

CH9 - TRANSPORT IN ANIMALS

The photograph shows human blood cells as seen under a microscope at high power. Which are red cells?A P and QB Q and RC R and SD S and P

2010 Summer

Theory

CH9 - TRANSPORT IN ANIMALS

The photograph shows human blood cells as seen under a microscope at high power. Which are red cells? A P and Q B Q and R C R and S D S and P

2010 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which characteristic is shown when a person smells a gas in the air?A excretionB movementC respirationD sensitivity

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Four illustrations labeled Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of the...

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

An organism has dry scales covering its body. To which vertebrate group does it belong? A: amphibian B: fish C: mammal D: reptile

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 has legs .......................... go to 2 has no legs ...................... go ...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows four specialised cells.Which feature is not common to all of these cells?A. cell membraneB. cytoplasmC. diploid number of chromosome...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.Which labelled structures are found in plant cells but not in animal cells?A P and QB Q and RC R and SD S and T

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows another plant cell.Which feature shows that it is a palisade cell?A a large nucleusB a large vacuoleC a thick cell wallD many chloro...

2011 Summer

Theory

CH6 - PLANT NUTRITION

Which structures are adapted for supporting a plant?A. phloem tissuesB. root hair cellsC. stomataD. xylem vessels

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which describes the structure and function of a red blood cell? [Table_1]

2011 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Boiling potatoes destroys their cell membranes. A peeled, boiled potato strip is placed in a concentrated solution of salts.What takes place?[Table_1]...

2011 Summer