lab questions ( cells ) Flashcards
1
Q
Diffusion is the movement of particles from a ____ to ____ concentration
A
Hight to low
2
Q
Simple diffusion is…
A
When it can pass directly through cell membranes easily
3
Q
facilitated diffusion is…
A
When molecules are unable to dissolve into the lipid bilayer
4
Q
Semi-permble membrane is
A
Semipermeable membrane allows certain molecules or ions to pass through it by osmosis
5
Q
What is mitosis?
A
It is the type of cell division that cells use for growth and repair
6
Q
How many chromosomes are in the human cell?
A
46 ( 23 from the mums eggs and 23 from the dads sperm )
7
Q
What are the four names and steps in cell division? (PMAT)
A
- Prophase - The DNA is packaged into chromosomes.
- Metaphase - The chromosomes line up in the middle of the cell.
- Anaphase - The duplication chromosomes are pulled apart.
- Telophase - The nucleus divides into two
