First Semester Biology Practice Questions

Front

Which macromolecule stores energy?

Back

Lipids/Fats are the macromolecules that store energy in living organisms.

Front

What is the process called when fossil fuels are burned?

Back

The burning of fossil fuels is known as Combustion.

Front

What is the main difference between producers and consumers?

Back

Producers make their own food through processes like photosynthesis, while consumers eat other organisms to obtain food.

Front

What describes parasitism?

Back

Parasitism is a relationship where the parasite benefits at the expense of the host.

Front

What is a large molecule called?

Back

A large molecule is referred to as a Macromolecule.

Front

What are the four main types of macromolecules?

Back

The four main types of macromolecules are Carbohydrates, Lipids, Proteins, and Nucleic Acids.

Front

What is the primary function of carbohydrates in living organisms?

Back

Carbohydrates primarily serve as a source of energy and structural support.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the role of proteins in the body?

Back

Proteins are essential for growth, repair, and maintenance of body tissues, and they also play a role in enzyme activity.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.