Ribosomes and Mitochondria

1. List three characteristics of mitochondria.

• They act as power plants for cells • They are surrounded by two membranes • They are their own genome

4. Describe the structure of a mitochondrion.

A cell with an inner and outer membrane. In the inner membrane, there is a grounding in the inner membrane called the matrix, with ATP synthase particles, ribosomes, DNA, and granules. The outer membrane doesn't touch the walls of the cell, so there is an inter membrane space. There are cracks or openings formed by the inter membrane called cristae.

4. What occurs in the mitochondrial matrix?

In the mitochondrial matrix, the citric acid cycle makes the electrons that travel from one protein to another in the inner membrane. What that happens, the final electron that is oxygen, forms water and ATP is being created.

5. How do mitochondria divide?

Mitochondria divide from a similar asexual form of cell division employed by bacteria.

2. Describe how mitochondria originated?

Mitochondria originated from an engulfed cell that relied on the protective shell of the host cell, which relied on the engulfed prokaryote for energy production. As time went on, the older engulfed cells of the engulfed prokaryote evolved into mitochondria.

1. What is the function of a ribosome?

The function of a ribosome is to make chains of amino acids (from proteins), which will then make an RNA molecule or an ER.

3. What is the general function of proteins embedded within the mitochondria inner membrane?

The general function of proteins embedded within the mitochondria inner membrane is electron transport and ATP synthesis.

3. Identify the reason why mitochondria are called "power plants" of the cell.

The reason why mitochondria is called "power plants" of the cell is because this is where most of the cell's energy is produced.

2. What is a significant difference between the structure of a ribosome and other organelles?

The significant difference between the structure of a ribosome and other organelles is that ribosomes are not surrounded by a membrane.