Biology Flashcards
Which process makes two identical new body cells for growth and repair
Mitosis
What happens during stage 1 of the cell cycle
The cell grows and the chromosomes replicate
What happens during stage 2 of the cell cycle
One set of chromosomes are pulled to each end of the cell
What happens during stage 3 of the cell cycle
The cytoplasm and cell membrane split into two new , identical daughter cells
If a cell takes 24 hours to divide, how long will it take to make 8 cells
3 days
Name the chemical which genetic material is made from
DNA
What is one section of genetic material called
A gene
Stem cells are cells that have NOT yet been specialised yet, name one type of specialised cell
Sperm cell
Name one specialised design of a sperm cell
Streamlined head
Give a difference between a prokaryotic and a eukaryotic cell
A eukaryotic cell has a nucleus
How do bacteria cells replicate
Binary fission
Name 3 types of eukaryotic cells
Plant, animal and fungus
Name a type of prokaryotic cell
Bacteria
Chromosomes are copied during the cell cycle, were are chromosomes found
In the nucleus
What cell provides extra energy for during mitosis
Mitochondria
Why is mitosis important in living organisms
To repair tissue cells
What is the definition of diffusion
For particles to go from a high concentration to a low concentration
What is active transport
For particles to go from a low concentration to a high concentration
How many pairs of chromosomes is there in a human cell
23 pairs
Where are adult stem cells found
Bone marrow
Why is the surface area of a leaf flattened
To increase surface area and absorb more sunlight
Where are plant stem cells found
The meristem
Where does gas exchange happen
Alveoli
What is the equation to find the actual size of a image
Actual size=Image size
Magnification
What is the function of muscles
To contract quickly
