More Things Not Covered Flashcards
What is oxygen debt?
The body needs extra oxygen to break down lactic acid after exercise
The extra oxygen is oxygen debt
Purpose of mitosis?
Growth and repair
Purpose of meiosis
To produce gametes
What is mitosis (6)
For growth and repair
Takes place in all cells apart from gametes
Produces 2 cells
Divides once
It starts and ends with 46 chromosomes
Produces 2 genetically identical daughter cells
No variation they are clones
What is meiosis?
To produce gametes
Takes place in testes and ovaries
Starts with 46 chromosomes and ends with 23
Divides twice
Produces 4 cells that are genetically different.
Mixture of chromosomes
Different from eachother and their parents
What do nitrates do?
Make proteins for growth
What happens if you are deficient in nitrate?
Stunted growth
What does magnesium do?
Makes chlorophyll for photosynthesis
What happens if there is a magnesium deficiency ?
Leaves will turn yellow
Test for starch?
Iodine
Turns blue/black
