MCQ

CH2 - BIOLOGICAL MOLECULES

Which statement about triglycerides is correct?

2024 Spring

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Two solutions, 1 and 2, each contained a mix of two different biological molecules. One solution contained starch and sucrose, and the other contained...

2024 Winter

5

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagrams show parts of three pairs of amino acids within a protein. The pairs are labelled X, Y and Z. Which row shows the correct type of intera...

2024 Winter

5

MCQ

CH2 - BIOLOGICAL MOLECULES

Which row correctly identifies the weak and strong bonds in the tertiary and quaternary structure of a typical protein? [Table_1]

2024 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

The diagram shows the structure of part of a peptidoglycan molecule. Which type of 1,4 linkage and how many peptide bonds are shown in this part of ...

2024 Spring

4

MCQ

CH2 - BIOLOGICAL MOLECULES

Which row correctly describes haemoglobin? [Table_1]

2024 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which row is correct for the structures present in typical plant cells and typical animal cells?[Table_1]

2024 Summer

4

MCQ

CH2 - BIOLOGICAL MOLECULES

Which row is correct for cellulose? [Table_1: rotation of alternate monomers by 180° shape of molecule hydrogen bonds between molecules]

2024 Summer

5

MCQ

CH2 - BIOLOGICAL MOLECULES

What is the maximum number of hydrogen bonds that can form between a single water molecule and other water molecules?

2024 Summer

3

MCQ

CH2 - BIOLOGICAL MOLECULES

Which statements about peptide bond formation are correct?1. The bond formation occurs between a carbon of one amino acid and a nitrogen of the next a...

2024 Summer

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