Enzymes catalyse specific reactions by having an active site where the substrate fits.This theory is called:

THE ITEM refer to the following family functions.

The family provides food, clothing and shelter for the children.

Active transport:

Alcohol can be made by fermentation of all these EXCEPT for:

Which one of these statements is true for ALL electromagnetic waves?

Which device has internal storage in the form of a buffer?

Healthy individuals are beneficial to a country′s development because such individuals are likely to be

The system used by mission control in Houston, Texas to monitor the operation of space exploration vehicles is an example of the __________ processing mode.

THE ITEM is based on the following extract.

Unemployment and hard economic conditions have forced both parents in some Caribbean families to migrate, leaving an elder son or daughter to care for the younger brothers and sisters.

Which of the following problem is LEAST likely to affect the younger brothers and sisters?

THE ITEM refer to the following family functions.

The family produces children and maintains the population.

All gas exchange surfaces in vertebrate animals have:

The particles in a liquid:

In the modern Periodic Table the elements are arranged:

Alcohol can be separated from beer using:

When an element combines with oxygen we get an:

In terms of mass, compared to a proton, an electron:

Compared to industrialised countries, developing countries:

If US$1.00 is equivalent to EC$2.68, how much in US$ would one get for EC$100?

The expansion of (x - 2)² is

All of these are carbohydrates EXCEPT for: