Biology Midterm Test Form B

Front

What is a eukaryotic cell?

Back

A eukaryotic cell is a type of cell that has a nucleus and other membrane-bound organelles, unlike prokaryotic cells which do not have a nucleus.

Front

What is the function of the nucleus in a cell?

Back

The nucleus is the control center of the cell, containing the cell's genetic material (DNA) and regulating gene expression and cell division.

Front

What characterizes cancer cells compared to normal cells?

Back

Cancer cells divide uncontrollably, leading to the formation of tumors, while normal cells have regulated division.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy and nutrients flow.

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?

Back

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

Front

How does a catalyst affect a chemical reaction?

Back

A catalyst lowers the activation energy needed for a chemical reaction, thereby increasing the reaction rate.

Front

What is the most precise tool for measuring liquid volumes?

Back

A graduated cylinder is the most precise tool for measuring liquid volumes.

Front

What is the role of decomposers 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.