Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows a cross-section through a plant stem. Q shows the part that is stained red when the stem is placed in water containing a red dye.Wha...

2012 Winter

2

Theory

CH8 - TRANSPORT IN PLANTS

What could increase the rate of water uptake by a shoot? A. covering the shoot with a black plastic bag B. covering the shoot with a clear plastic b...

2012 Winter

1

Theory

CH8 - TRANSPORT IN PLANTS

In which order does water pass through these structures in a plant?A mesophyll → root hair → xylemB mesophyll → xylem → root hairC root hair �...

2011 Summer

3

Theory

CH8 - TRANSPORT IN PLANTS

Which pair of substances is transported in the phloem?A amino acids and proteinB amino acids and sucroseC protein and starchD starch and sucrose

2011 Summer

2

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

1

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

2

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

2

Theory

CH8 - TRANSPORT IN PLANTS

The diagram shows how water is lost from a leaf. [Image_1: Diagram of a leaf with arrows indicating water vapour] By which process is the water lost?...

2012 Winter

2

Theory

CH8 - TRANSPORT IN PLANTS

The sweet potato plant, extit{Ipomoea batatas}, has fibrous roots and storage roots. Fibrous roots absorb water and ions from the soil. Storage roots...

2011 Winter

2

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

1

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) (i) State the name of the gas exchange surface in humans. ...........................................................................................

2022 Spring

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 2.1 is a photomicrograph showing the fertilisation of one human egg cell. [Image_1: Photomicrograph of fertilisation with label 'sperm']Descr...

2022 Spring

1

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) A scientist investigated the effect of temperature on the mass of leaves picked from a tea plant, *Camellia sinensis*.• Three samples of leaves ...

2022 Spring

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Fig. 4.1 is a diagram of Vibrio cholerae, the bacterium that causes cholera. (i) Describe two similarities and two differences between a palisade ...

2022 Spring

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The Arabian oryx and the northern white rhinoceros are both mammals.Fig. 5.1 is a photograph of an Arabian oryx. Fig. 5.2 is a photograph of a norther...

2022 Spring

2

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

(a) Complete Table 6.1 to show the names, functions and sites of action of the three different digestive enzymes.Table 6.1| name of enzyme | function ...

2022 Spring

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

All living organisms release energy from nutrient molecules within their cells. What is the name of this characteristic?

2022 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which diagram shows a flower from a monocotyledon?

2022 Summer

1

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a cross-section through two guard cells of a leaf. Which labelled structures would also be found in an animal cell?

2022 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a cross-section through a leaf. Which label shows a tissue?

2022 Summer

1