Cell Biology Concepts and Terminology

This video introduces the basics of biology, focusing on cells as the fundamental building blocks of life. It explains the structure and function of cells, tissues, and organs, and distinguishes between unicellular and multicellular organisms. The video also covers the measurement of cell size using micrometers and nanometers, and differentiates between eukaryotic and prokaryotic cells, highlighting the presence or absence of a nucleus and organelles.

What is considered the basic building block of life according to biologists?

• Atoms

• Cells

• Molecules

• Energy

What do we call a group of similar cells working together?

• Organism

• Tissue

• System

• Organ

What is the term for a group of organs working together for a common purpose?

• Tissue

• Cell

• System

• Organism

Which of the following is an example of a unicellular organism?

• Cat

• Tree

• Amoeba

• Human

Which of the following is NOT a type of cell found in a cat?

• Muscle cell

• Skin cell

• Brain cell

• Leaf cell

What unit is used to measure the size of cells?

• Micrometers

• Meters

• Kilometers

• Centimeters

How many micrometers are there in a meter?

• 10,000

• 100,000

• 1,000,000

• 1,000

What is the symbol for nanometer?

• mm

• nm

• cm

• um

What is the main feature that distinguishes eukaryotic cells from prokaryotic cells?

• Presence of a nucleus

• Presence of a cell wall

• Ability to move

• Size of the cell

Which of the following is a characteristic of prokaryotic cells?

• They are multicellular

• They have organelles

• They lack a nucleus

• They have a nucleus