1st 9 weeks Biology Review

Front

What is a substrate in biology?

Back

A substrate is the substance on which an enzyme acts during a biochemical reaction.

Front

Define desalination.

Back

Desalination is the process of removing salt and minerals from seawater to produce fresh water.

Front

What is the trend in global water demand?

Back

The demand for water around the world is increasing.

Front

Why are there few top predators in ecosystems?

Back

There are few top predators because there is not enough energy remaining in the ecosystem to support a large number of them.

Front

What does emigration mean in ecology?

Back

Emigration refers to the movement of individuals out of a population or area.

Front

What is an active site?

Back

The active site is the region on an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

What is the difference between immigration and emigration?

Back

Immigration is the movement of individuals into a population, while emigration is the movement of individuals out of a population.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed in the process.

Front

What is population density?

Back

Population density is the number of individuals living in a given area, usually expressed as individuals per unit area.