Homeostasis is the maintenance of a constant interval environment despite a changing external environment
200
What is the purpose of meiosis?
To make egg and sperm cells.
200
Which cells have a cell wall? (plant or animal?
plant cells
200
What are the 3 types of RNA and what do they do?
1. mRNA
- DNA cannot leave the nucleus so mRNA carries information to ribosomes for protein production
2. tRNA
– brings specified amino acids from the cytoplasm to the ribosomes where the protein chain is made
3. rRNA
- the ribosome and protein
200
When does protein synthesis happen?
It happens throughout the cell cycle. It is happening in your cells almost all the time.
200
What are the 5 characteristics of life?
made up of one or more cells, can reproduce and develop, has DNA, requires energy, responds to stimuli.
300
How many daughter cells are produced in meiosis?
4
300
True or false: Passive transports let cells through, while active tranports dont.
False, active transports let cells through, while passive transports dont.
300
What amino acid would GUC be?
Valine
300
Why are proteins important?
they build things and act as enzymes
300
What does the cell membrane do?
regulates what enters and leaves the cell
400
Why is it crucial to only have 23 chromosomes in an egg or sperm?
So it can pair with the other cell to make 46.
400
True or false: water will always go to the highest concentrate of a substance
True
400
Transcribe this strand:
T T A G G A C T G C A A T T G
A A U C C U G A C C U U A A C
400
What is the central dogma of genetics?
DNA ----------------> RNA ----------------> Protein
transcription translation
400
What is diffusion?
Molecules in solution tending to slowly spread apart over time.