Cell Structures B1.1 Flashcards
What determines the make up of a cell?
- The genetic information in the nucleus determines the make up of the cell and which proteins are made.
What does the nucleus contain?
- The nucleus contains genetic information.
What is a chromosome?
- A chromosome is a molecule made up of many coiled up sections of DNA.
Why is it important for DNA not to become tangled?
- It is important for DNA not to become tangled to maintain its structure and function.
What do genes code for?
- Genes code for certain characteristics.
How is magnification defined?
- Magnification is defined as the size of the image divided by the size of the real object.
What advantage does the electron microscope have over the light microscope?
- The electron microscope has a much higher magnifying power than the light microscope, allowing for the observation of more sub-cellular structures.
What is resolution in the context of microscopy?
Resolution is the ability to tell the difference between two points.
What additional organelles do plant cells have that animal cells do not?
- Plant cells have a cell wall, chloroplasts, and a vacuole.
What is the main function of the mitochondria?
- The main function of the mitochondria is to produce energy for the cell through aerobic respiration.
What is the function of the cell wall in plant cells?
The cell wall provides rigidity to the plant cell.
What is the main difference between eukaryotic and prokaryotic cells?
- The main difference is that eukaryotic (Plant and Animals) cells contain a nucleus while prokaryotic (Bacteria) cells do not.
What type of cells are animal and plant cells?
Animal and plant cells are eukaryotic cells.
Do bacterial cells have a cell wall?
Yes, bacterial cells have a cell wall.
What is the equation for magnification?
Mag = Image size / Object Size
