10th - Cytology (Cell Membranes) Test

What is the function of the cell membrane?

• To maintain homeostasis within the cell

• All of the above

• To regulate the flow of materials into and out of the cell

• To separate the components of a cell from its environment

Tags

NGSS.MS-LS1-2

What is homeostasis?

• To storage information in the DNA

• The regulation of glucose intake

• The process of maintaining ATP balance

• A stable, internal environment

Tags

NGSS.HS-LS1-3

What is the composition of the cell membrane?

• Phosphates, proteins, and lipids

• Proteins, carbohydrates, and nucleic acids

• Fatty acids, carbohydrates, and nucleic acids

• Phosphates, fatty acids, and carbohydrates

Which type of cells have a cell wall in addition to a cell membrane?

• Only Plant cells

• Animal cells

• Both prokaryotes and plant cells

• Only Prokaryotes

What is diffusion?

• The movement of blood from a low to high concentration

• The movement of molecules from a high to low concentration

• The movement of water through a selectively permeable membrane

• The movement of water in the nucleus

Tags

NGSS.MS-LS2-3

What is active transport?

• The movement of molecules from a low to high concentration

• The movement of ribosomes across the cell membrane

• The movement of water through a selectively permeable membrane

• The movement of molecules from a high to low concentration

Why is energy required for active transport?

• To maintain homeostasis within the cell

• To pump molecules against the concentration gradient

• To regulate the interior of an organelle

• To balance the pH, temperature, and glucose levels

The phospholipid phosphate heads is?

• Facilitated diffusion

• Hydrophilic

• Hydrophobic

• Osmosis

What is the role of the cell membrane in maintaining homeostasis?

• Balancing the pH

• Controlling glucose intake

• All of the above

• Regulating temperature

Tags

NGSS.HS-LS1-3

Which cells have a cell membrane only?

• Both prokaryotes and animal cells

• Plant cells

• Animal cells

• Prokaryotes