BIOLOGY PRE-UNIVERSITY EXERCISE 1

The diagram shows a water molecule. The value of X is 104.0°.

• True

• False

Which is TRUE about the property of water?

• High viscocity

• Low spesific heat capacity

• Low latent heat of vaporization

• High surface tension

A chemical reaction in which a molecule is broken down with the addition of water molecule is the definition for …

• hydrolysis reaction.

• formation reaction.

• breakdown reaction.

• condensation reaction.

This structure is a …

• phospholipid.

• triglyceride.

• steroid.

• glycerol.

This is a/an ...

• nucleotid.

• amino acid.

• carboxyl group.

• glycerol.

A nucleotide in DNA and RNA consists of ...

• phosphate group, pentose, nitrogen.

• pentose, nitrogenous base, phosphate group.

• nitrogenous base, amino acid, hexose.

• nitrogenous base, amino acid, pentose.

A prokaryotic cell ...

• has true nucleus.

• has membrane-bounded organelles.

• has plasmids.

Which is NOT TRUE about a plant cell?

• Have tonoplast surrounds vacuole.

• Have plasmodesmata in cell wall.

• Cell wall is made up of chitin.

• Has plasma membrane.

This organelle is a ...

• chloroplast.

• chlorophyll.

• granum.

• stroma.

Mitochondria is a double membrane organelle.

• Yes

• No