Theory

CH6 - PLANT NUTRITION

Which cell type contains the most chloroplasts? A. palisade mesophyll B. phloem C. spongy mesophyll D. xylem

2009 Summer

Theory

CH6 - PLANT NUTRITION

The diagram shows a section through a leaf.Which cell type absorbs the most carbon dioxide during the day?

2009 Winter

Theory

CH6 - PLANT NUTRITION

Which element is found in a molecule of chlorophyll? A calcium B iron C lead D magnesium

2009 Winter

Theory

CH6 - PLANT NUTRITION

Which substances do root hairs take from the soil?A. water and carbon dioxideB. water and mineral ionsC. carbon dioxide and oxygen and mineral ionsD. ...

2009 Winter

Theory

CH6 - PLANT NUTRITION

The diagram shows a student’s drawing of guard cells.Which labelling line is not correct?

2009 Winter

Theory

CH6 - PLANT NUTRITION

Which substances do root hairs take from the soil?A. water and carbon dioxideB. water and mineral ionsC. carbon dioxide and oxygen and mineral ionsD. ...

2009 Winter

Theory

CH6 - PLANT NUTRITION

The diagram shows a section through a leaf. Which cell type absorbs the most carbon dioxide during the day?

2009 Winter

Theory

CH6 - PLANT NUTRITION

Which element is found in a molecule of chlorophyll?A. calciumB. ironC. leadD. magnesium

2009 Winter

Theory

CH6 - PLANT NUTRITION

(a) (i) Explain why the student included the glass tank and the syringe in the apparatus.glass tank .....................................................

2009 Winter

Theory

CH6 - PLANT NUTRITION

A student set up the apparatus shown in Fig. 3.1 to investigate the effect of carbon dioxide concentration on the rate of photosynthesis of a pond pla...

2009 Winter

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

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

2022 Spring

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

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

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

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

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

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

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which diagram shows a flower from a monocotyledon?

2022 Summer

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

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

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

2022 Summer