BIOLOGY - Cells - Introduction to Cells

The video tutorial explains the basic units of life, cells, focusing on animal and plant cells. It describes the structures and functions of animal cells, including the nucleus, cell membrane, and cytoplasm, and highlights the role of mitochondria in respiration. Plant cells are discussed with additional structures like the cell wall, chloroplasts, and vacuoles, emphasizing their roles in support, photosynthesis, and storage. The tutorial also covers specialized cells such as red blood cells, nerve cells, and white blood cells, detailing their unique features and functions in the body.

What is the primary function of the nucleus in an animal cell?

• To store and protect genetic information

• To control what enters and exits the cell

• To provide structural support

• To facilitate chemical reactions

Which structure in plant cells is responsible for photosynthesis?

• Cell wall

• Chloroplast

• Nucleus

• Vacuole

What is the main role of vacuoles in plant cells?

• To control cell division

• To conduct photosynthesis

• To store water and nutrients

• To produce energy

Why do red blood cells lack a nucleus?

• To allow more space for oxygen transport

• To enable faster movement through blood vessels

• To increase their lifespan

• To enhance their ability to fight infections

What is the function of dendrites in nerve cells?

• To transmit electrical signals

• To communicate with other nerve cells

• To store energy

• To fight infections