MCQ

CH1 - CELL STRUCTURE

A student used a light microscope to observe a blood smear on a microscope slide.An eyepiece graticule was used to measure the diameter of a white blo...

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

A prokaryotic cell which is 1\(\mu m\) in diameter is magnified 50 000 times in an electron micrograph.What is the diameter of the cell in the electro...

2024 Summer

3

MCQ

CH1 - CELL STRUCTURE

The diagram shows a transverse section through a blood capillary.What is the magnification of the drawing?

2024 Winter

3

MCQ

CH1 - CELL STRUCTURE

The diagram shows a stage micrometer scale viewed with an eyepiece graticule, using a magnification of ×200. Using the same magnification, a chloro...

2024 Summer

4

MCQ

CH1 - CELL STRUCTURE

The diagram shows a plant cell with some labelled structures. Which labelled structures are bound by a double membrane?

2024 Summer

4

MCQ

CH1 - CELL STRUCTURE

Which statement explains why it is necessary to use an electron microscope to see the cristae of a mitochondrion?

2024 Spring

4

MCQ

CH1 - CELL STRUCTURE

Which statement explains why lymphocytes with no nucleoli die?

2024 Winter

2

MCQ

CH1 - CELL STRUCTURE

Which range of cell diameters is typical for prokaryotic cells?

2024 Summer

4

MCQ

CH1 - CELL STRUCTURE

The electron micrograph shows a type of blood cell. What can be concluded from the electron micrograph?

2024 Summer

4

MCQ

CH1 - CELL STRUCTURE

Some stains can be used to identify cell structures in living cells.A dilute solution of one stain causes the whole cell to appear blue.The blue colou...

2024 Spring

4

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