Biology Midterm Review #2

Front

What contributes to acid rain?

Back

Coal fired power plants release sulfur dioxide and nitrogen oxides into the atmosphere, which can combine with water vapor to form acid rain.

Front

How many chromosomes does a cell have after mitosis if it started with 20?

Back

A cell will still have 20 chromosomes after mitosis, as mitosis is a process of cell division that maintains the chromosome number.

Front

What is the term for the movement of water through a protein in the cell membrane?

Back

Facilitated diffusion is the process by which water moves through a protein channel in the cell membrane.

Front

What effect would fewer eagles have on the population of snakes?

Back

Less eagles would likely lead to an increase in the snake population, as there would be fewer predators.

Front

Which type of cell contains a rough endoplasmic reticulum?

Back

Eukaryotic cells have a rough endoplasmic reticulum, which is involved in protein synthesis.

Front

What is the function of the rough endoplasmic reticulum?

Back

The rough endoplasmic reticulum is responsible for the synthesis and processing of proteins.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is the difference between eukaryotic and prokaryotic cells?

Back

Eukaryotic cells have a nucleus and membrane-bound organelles, while prokaryotic cells do not.

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 primary function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.