Cells Flashcards
Give one potential risk of using stem cells in medical cloning?
They may become contaminated with a virus, which could be passed on to the patient and so it could make them sicker.
what are found in plant cells, that aren’t found in animal cells?
Cell wall, Vacuole and Chloroplast.
what is the function of Ribosomes.
Produces protein.
what is the function of Mitochondria?
Uses energy for respiration.
What is the function of the Nucleus?
Controls cell activity.
What is the function od the Cell Membrane?
Controls what goes in and out the cells and holds the cell together.
What is the function of the Cell Wall?
Strengthens the cell.
What is the function of the Cytoplasm?
Chemical reactions take place.
High concentration to low concentration.
Diffusion?
Higher water concentration to a low water concentration.
Osmosis?
Active Transport?
Low concentration to a high concentration.
Cell Division?
The division of a cell into two daughter cells with the same genetic information.
- DNA is found in the nucleus.
- Chromosomes make up the DNA.
- Different chromosomes determine different characteristics such as: eye colour, hair colour.
Mitosis?
This is to do with the growth and repair of cells.
chromosomes?
chromosomes come as pairs and we have 23 pairs. You get 23 from the sperm and 23 in the egg. In total we have 46 chromosomes.
3hrs x 60 = 180minutes
180 divided by 30 = 6 divisions
2 x 2 x 2 x 2 x 2 x 2 = 64
Brinary Fission?
Clone?
something that is genetically the same is known as a clone.
Order of Brinary Fission?
Parent cell
1) Plasmid (contains extra information). Contains DNA and plasmid.
2) Each DNA make a copy of itself.
3) Move to opposite ends.
4) The cell begins to divide.
5) There are a variable amount of plasmid. They will contain the same amount of DNA.
2 daughter cells.
Contain haemoglobin to carry oxygen to the cells.
It has a thin outer membrane to let oxygen diffuse through easily. The shape increases the surface area to allow more oxygen to be absorbed efficiently.
Red Blood Cells?
Palisade leaf cell?
Absorbs light energy for photosynthesis. Packed full of chloroplasts. Regular shaped, closely packed cells form a continuous layer for efficient absorption of sunlight.
Egg cell?
To join with male cell and then to provide food for the new cell that’s been formed. Large and contains lots of cytoplasm.
Sperm cell
Fertilizes an egg cell. The head contains the genetic information. The middle section is packed with mitochondria for energy. The tail moves the sperm to the egg.
