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

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