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

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

2015 Summer

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

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

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

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

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

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

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

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

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