PTP Ch 3.1

Question 1

What is Cell theory?

Answer 1

A scientific theory that describes the properties of cells, stating that all living organisms are composed of cells, cells are the basic unit of life, and all cells arise from pre-existing cells.

Question 2

What features are shared by all cells?

Answer 2

• Cell membrane
• Cytoplasm
• Genetic material (DNA)
• Ribosomes

Question 3

How do cells compensate for the Surface Area to volume ratio problem?

Answer 3

Cells can compensate by adopting shapes that maximize surface area relative to volume, such as being elongated or flattened.

Question 4

What Structures are found in eukaryotic cells?

Answer 4

• Nucleus
• Mitochondria
• Endoplasmic reticulum
• Golgi apparatus
• Lysosomes
• Plasma membrane

Question 5

What is the function of the nucleus in eukaryotic cells?

Answer 5

The nucleus houses the genetic material and controls cellular activities.

Question 6

What is the function of mitochondria in eukaryotic cells?

Answer 6

Mitochondria are responsible for producing ATP through cellular respiration.

Question 7

Fill in the blank: The _______ is the basic unit of life.

Answer 7

[cell]

Question 8

True or False: All cells contain a nucleus.

Answer 8

False

Question 9

What is the primary function of ribosomes in cells?

Answer 9

Ribosomes are responsible for protein synthesis.

Question 10

What role does the plasma membrane play in eukaryotic cells?

Answer 10

The plasma membrane protects the cell and regulates the movement of substances in and out.