Biology Midterm Review

Front

How do enzymes aid in digestion?

Back

They help speed up chemical reactions, break large molecules down, and help build new molecules that the body needs.

Front

What refers to the position an organism occupies in a food chain?

Back

Trophic Level.

Front

An omnivore is an organism that eats __________.

Back

both plants and meats.

Front

In most food webs, ___________ create energy from __________ to fuel the entire food web.

Back

producers create energy from sunlight.

Front

How are amino acids, lipids, nucleotides and other macromolecules made?

Back

Ingested glucose and other carbon-containing molecules get broken down and rearranged through different chemical reactions.

Front

What is the role of producers in an ecosystem?

Back

Producers convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

Define mutualism in ecological terms.

Back

Mutualism is a symbiotic relationship where both species benefit from the interaction.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem.

Front

What is the difference between a herbivore and a carnivore?

Back

Herbivores eat only plants, while carnivores eat only meat.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil.