Escherichia coli, or E.coli, is a species of bacteria. Entamoeba histolytica, or E. histolytica, is a single-celled amoeba.

What do E. coli and E. histolytica have in common?

Select THREE answers.

• They need to find sources of energy or food.

• They are unable to respond to changes in their environment.

• They maintain homeostasis by cell specialization.

• They reproduce.

• They both have a nucleus.

Which of the following correctly describe the cellular boundaries in prokaryotic and eukaryotic

cells?

Select TWO answers.

• Eukaryotic plant cells and prokaryotic cells both have cell walls.

• Prokaryotic cells and eukaryotic cells both have a cell membrane.

• Prokaryotic cells have a cell membrane but do not have a cell wall.

• Eukaryotic cells have a cell membrane but do not have a cell wall.

• Prokaryotic cells do not have a cell membrane.

What is the purpose of the cell membrane in a cell?

• To provide structure and support.

• To allow the entry and exit of ALL materials.

• To control what goes in and out of the cell.

• To produce energy for the cell.

Which of the following are components of the cell membrane that enable it to control what goes in and out of the cell?

Select THREE answers.

• Integral proteins

• Ribonucleic acid

• Phospholipid

• Amylase

• Cholesterol

During a laboratory experiment, a group of students notices that certain substances can enter

and leave the cell, indicating the membrane's selective permeability.

How does the fluid mosaic model explain the nature of the cell membrane that the students are

observing?

• The membrane is rigid and static.

• The membrane is made up of many small pieces.

• The membrane components are able to move around, allowing for selective permeability.

• membrane is impermeable to all substances.