Theory

CH8 - TRANSPORT IN PLANTS

Cobalt chloride paper is blue when dry but turns pink when wet. Some blue cobalt chloride paper was fastened to the upper and lower surfaces of a leaf...

2009 Summer

Theory

CH8 - TRANSPORT IN PLANTS

The diagrams show stages in the passage of water through a plant.The circles are the starting points for arrows to show the direction in which the wat...

2009 Summer

Theory

CH8 - TRANSPORT IN PLANTS

Translocation occurs in phloem tubes. Aphids feed on the contents of phloem tubesWhat type of food would be lacking in their diet?A. amino acidB. fatC...

2009 Summer

Theory

CH8 - TRANSPORT IN PLANTS

Fig. 4.1 is a photograph of a root of radish covered in many root hairs. (a) Using the term water potential, explain how water is absorbed into root h...

2009 Summer

Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows a plant. What is the pathway taken by most of the water absorbed by this plant?A X → Y → ZB W → Y → ZC Z → Y → XD Z → ...

2009 Winter

Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows a plant. What is the pathway taken by most of the water absorbed by this plant?A. $X \to Y \to Z$B. $W \to Y \to Z$C. $Z \to Y \to X...

2009 Winter

Theory

CH8 - TRANSPORT IN PLANTS

What is a description of transpiration?A exchange of gases between the leaf and the atmosphereB loss of water vapour from the leaves and stems of a pl...

2010 Summer

Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed. How is transport in the plant affected?A. Am...

2010 Summer

Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed.How is transport in the plant affected?A Amin...

2010 Summer

Theory

CH8 - TRANSPORT IN PLANTS

What is a description of transpiration? A exchange of gases between the leaf and the atmosphere B loss of water vapour from the leaves and stems of ...

2010 Summer

Theory

CH14 - CO-ORDINATION AND RESPONSE

(a) Fig. 1.1 is a diagram showing the position of some organs in the human body. Some of the organs shown in Fig. 1.1 are endocrine glands. Table 1.1...

2021 Spring

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 2.1 is a diagram of a prokaryotic cell. Fig. 2.1 (i) State one visible feature in Fig. 2.1 that identifies this cell as a prokaryotic cel...

2021 Spring

Theory

CH9 - TRANSPORT IN ANIMALS

(a) The activity of the heart can be monitored using different methods.Fig. 3.1 shows two ECG traces. One trace was recorded when the person was at re...

2021 Spring

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

(a) A leaf can be described as an organ.Define the term organ............................................................................................

2021 Spring

Theory

CH10 - DISEASES AND IMMUNITY

(a) Measles is a transmissible disease.The percentage of the population that were vaccinated against measles in a country was determined.The number of...

2021 Spring

Theory

Food Webs

(a) Fig. 6.1 shows a food web. (i) State the number of trophic levels in the food web in Fig. 6.1. [1] (ii) State the name of one organism that fe...

2021 Spring

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a characteristic of all living organisms?

2021 Summer

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The table shows a section of DNA taken from four different organisms.[Table_1]Which two organisms are the most distantly related to each other?

2021 Summer

MCQ

Animal Kingdom - Arthropods and Vertebrates

Scientists discover a new species of animal. It has a segmented body with two pairs of legs on each segment. To which group of animals does this new s...

2021 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a single-celled organism called *Euglena*. Which labelled structures would also be found in an animal cell?

2021 Summer