Biology 1 Midterm Review

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, illustrating how energy and nutrients flow through different trophic levels.

Front

What happens to herbivore populations if a new producer is introduced into a food web?

Back

The herbivore populations are likely to increase due to the availability of more food resources.

Front

What is activation energy in biochemical reactions?

Back

Activation energy is the minimum amount of energy required for a chemical reaction to occur.

Front

How does lowering activation energy affect the rate of a biochemical reaction?

Back

Lowering activation energy increases the rate of the reaction, allowing it to occur faster.

Front

What is the function of lysosomes in a cell?

Back

Lysosomes are organelles that digest foreign substances and break down worn-out cell parts.

Front

What distinguishes eukaryotic cells from prokaryotic cells?

Back

Eukaryotic cells contain a nucleus, while prokaryotic cells do not.

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells, each with the same number of chromosomes as the original cell.

Front

If a cell has 8 chromosomes, how many chromosomes will each daughter cell have after mitosis?

Back

Each daughter cell will have 8 chromosomes.

Front

What role do decomposers play in an ecosystem?

Back

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

Front

What is the difference between herbivores, carnivores, and omnivores?

Back

Herbivores eat plants, carnivores eat animals, and omnivores eat both plants and animals.