MCQ

CH7 - TRANSPORT IN PLANTS

Which row correctly identifies sinks for sucrose transported by mass flow in plants? [Table_1]

2024 Summer

3

MCQ

CH7 - TRANSPORT IN PLANTS

The diagram shows a transverse section through a transport tissue in a plant.Which row correctly identifies cell 1 and cell 2?

2024 Summer

3

MCQ

CH7 - TRANSPORT IN PLANTS

The electron micrograph shows a longitudinal section of part of the stem of a plant. What is the name of the structure labelled X?

2024 Summer

5

MCQ

CH7 - TRANSPORT IN PLANTS

Which statement correctly describes the movement of solutes in the symplast pathway?

2024 Summer

3

MCQ

CH7 - TRANSPORT IN PLANTS

Which substance makes xylem vessel walls impermeable to water?

2024 Summer

5

MCQ

CH7 - TRANSPORT IN PLANTS

Which statement helps to explain why water molecules are forced to move through xylem vessel elements as a consequence of transpiration?

2024 Summer

4

MCQ

CH7 - TRANSPORT IN PLANTS

Which statement correctly identifies the movement of sucrose and amino acids in plant vascular tissue?

2024 Winter

3

MCQ

CH7 - TRANSPORT IN PLANTS

Xylem vessel elements are specialised cells that are adapted for the transport of water.Which statement correctly matches an adaptation of a xylem ves...

2024 Winter

3

MCQ

CH7 - TRANSPORT IN PLANTS

Which statement correctly describes the association between a companion cell and its sieve tube cell?

2024 Spring

3

MCQ

CH7 - TRANSPORT IN PLANTS

A maize seedling was grown in soil that contained lanthanum ions labelled with a chemical that fluoresces under ultraviolet light. The diagram represe...

2024 Spring

3

MCQ

CH1 - CELL STRUCTURE

Which statements about resolution and magnification are correct?[Table_1]

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

An eyepiece graticule has a scale with 100 divisions. A stage micrometer has a scale with 50 divisions, each of which is 0.040 mm apart. Using a ×40 ...

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

A prokaryotic cell which is 1 µm in diameter, is magnified 50000 times in an electron micrograph. What is the diameter of the cell in the electron m...

2018 Summer

3

MCQ

CH1 - CELL STRUCTURE

A scientist carried out an experiment to separate cell structures in animal cells. The cells were broken open to release the cell structures. This ext...

2018 Summer

2

MCQ

CH1 - CELL STRUCTURE

Radioactively-labelled nucleotides are introduced into a cell.In which cell structures will the radioactivity first become concentrated?

2018 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

What is the general formula for amylose?

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagram shows relationships between some important molecules and bonds. What is represented by circles numbered 1, 2 and 3?

2018 Summer

2

MCQ

CH2 - BIOLOGICAL MOLECULES

In unsaturated lipid molecules, where are double bonds located?

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Phospholipids and triglycerides are important biological molecules.Which properties are correct for these molecules?[Table_1]

2018 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagrams show two arrangements of amino acids in a protein. Which row correctly names the bonds at S or T?

2018 Summer

3