Exploring Cells and Life Forms Unit Review

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

• It provides energy for the cell.

• It controls what enters and exits the cell.

• It stores genetic information.

• It synthesizes proteins.

Tags

NGSS.MS-LS1-2

Which organelle is responsible for producing energy in the form of ATP in eukaryotic cells?

• Nucleus

• Ribosome

• Mitochondria

• Golgi apparatus

Tags

NGSS.MS-LS1-2

Explain how the structure of the cell membrane contributes to its function.

• The rigid structure allows for protection.

• The lipid bilayer provides a flexible barrier.

• The thick wall prevents all substances from entering.

• The solid structure allows for easy transport.

Tags

NGSS.MS-LS1-2

Describe how homeostasis is maintained in the human body when body temperature rises.

• The body shivers to generate heat.

• The body sweats to cool down.

• The heart rate decreases.

• The blood vessels constrict.

Which of the following is an example of passive transport?

• Endocytosis

• Exocytosis

• Osmosis

• Active transport

Which of the following best describes the cell theory?

• Cells are the basic unit of life, and all living things are composed of cells.

• Cells can only be seen with a microscope.

• Cells are only found in animals.

• Cells are the smallest particles of matter.

Tags

NGSS.MS-LS1-1

What is the primary function of ribosomes in a cell?

• To store genetic information

• To synthesize proteins

• To produce energy

• To transport materials

Tags

NGSS.MS-LS1-2

Explain the role of the nucleus in a eukaryotic cell.

• It produces energy for the cell.

• It controls cell activities and contains DNA.

• It synthesizes proteins.

• It transports materials within the cell.

Tags

NGSS.MS-LS1-2

Which of the following is a characteristic of prokaryotic cells?

• They have a nucleus.

• They lack membrane-bound organelles.

• They are larger than eukaryotic cells.

• They have multiple chromosomes.

How do plant cells maintain their structure?

• Through a flexible cell membrane

• By having a rigid cell wall

• By storing water in the nucleus

• Through a soft cytoplasm