Cellular Functions and Specialization

The video tutorial explores the differences between unicellular and multicellular organisms, highlighting their functions and examples. It delves into the characteristics of photosynthetic unicellular organisms like Chlorella and the emergent properties of multicellular organisms. The tutorial also covers stem cells, their differentiation potential, and ethical considerations. Finally, it discusses the roles of specialized cells in the human body.

What is a key characteristic of unicellular organisms?

• They perform all life functions within a single cell.

• They are always stationary.

• They have multiple cells working together.

• They cannot reproduce asexually.

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

• Yeast

• Chlorella

• Amoeba

• Paramecium

What is an emergent property in multicellular organisms?

• The ability of a single cell to perform all functions.

• The interaction of cellular components to form tissues and organs.

• The inability of cells to work together.

• The presence of only one type of cell.

What is a defining feature of stem cells?

• They are fully differentiated.

• They can become any cell type.

• They are only found in adults.

• They cannot replicate.

What is a potential application of stem cells mentioned in the lesson?

• Lab-grown meat

• Developing new antibiotics

• Creating new species

• Increasing plant growth

What is a major ethical concern regarding stem cell research?

• The cost of research

• The source of stem cells

• The speed of cell growth

• The lack of potential applications

How do specialized cells differ from stem cells?

• They are only found in embryos.

• They are undifferentiated.

• They perform specific functions.

• They can become any cell type.

Which cell type is responsible for carrying oxygen in the body?

• Beta cells

• Red blood cells

• Nerve cells

• Muscle cells

What is the role of neurons in the body?

• To filter blood

• To transmit signals

• To produce insulin

• To carry oxygen

What is the function of alpha and beta cells in the pancreas?

• To carry oxygen

• To filter blood

• To produce insulin and glucagon

• To transmit signals