Mitochondria Functions and Features

The video explains the role of mitochondria as the power plant of the cell, producing ATP, the energy currency. It describes the structure of mitochondria, including its membranes and the matrix, which contains enzymes, ribosomes, and DNA. The video also highlights the variation in the number of mitochondria across different cell types, such as red blood cells and liver cells.

What is the primary function of mitochondria in a cell?

• To synthesize lipids

• To transport proteins

• To produce energy

• To store genetic information

What is ATP commonly referred to as in the context of cellular energy?

• Genetic material

• Energy currency of the cell

• Protein builder

• Lipid transporter

How does the cell utilize ATP for energy?

• By using it to transport lipids

• By converting it into DNA

• By breaking it down in a chemical reaction

• By storing it in the nucleus

What is the function of the cristae in mitochondria?

• To increase surface area for chemical reactions

• To store ATP

• To transport proteins

• To synthesize lipids

What is found within the matrix of mitochondria?

• Only ATP

• A mixture of enzymes, ribosomes, and DNA

• Only DNA

• Only ribosomes

What is the significance of the inner membrane's folds in mitochondria?

• They help in cell division

• They protect the mitochondria from toxins

• They increase the surface area for ATP production

• They store water

What unique feature do mitochondria have compared to other organelles?

• They do not require oxygen

• They are found only in plant cells

• They can photosynthesize

• They have their own ribosomes and DNA

How many mitochondria can be found in liver cells?

• None

• More than 2,000

• Exactly 500

• About 100

Which cells lack mitochondria entirely?

• Red blood cells

• Muscle cells

• Liver cells

• Nerve cells

Why are mitochondria referred to as the powerhouses of the cell?

• They control the cell's genetic material

• They produce the cell's energy

• They transport waste out of the cell

• They store all the cell's nutrients