Mitosis
Photosynthesis part 1
Meiosis
Photosynthesis part 2
DNA replication
100
What phase does the cell spend most of its time in?
interphase
100
What is the overall reaction for photosynthesis?
SUNLIGHT + 6 CO2 + 6 H2O (ATP)--> glucose (C6H12O6) + 6 O2
100
What is the term for a mistake in mitosis?
nondisjunction
100
What is the name of the reaction center for PSII?
P680
100
What direction does DNA follow?
5' to 3'
200
What is cytokinesis?
when the cytoplasm divides and there are 2 cells
200
In which part of the chloroplast does each stage occur?
The light reactions take place in the thylakoids.
The Calvin cycle takes place in the stroma.
200
If an organism has eight chromosomes, how many would you expect the ovum of that organism?
four! half chromosomes come from egg and half come from sperm
200
What is the main purpose of light-dependent reactions of photosynthesis?
to make ATP and NADPH
200
What does semiconservative mean?
one old strand and one new strand
300
What is the S phase?
where DNA is copied
300
What are the products of the light dependent reactions? (be specific for each part)
O2 & ATP - PSII
NADPH - PSI
300
What chromosome is affected in Down's Syndrome?
21
300
What are the primary electron acceptors for each photosystem?
PSII- pheophytin
PSI- ferredoxin
300
What is DNA polymerase?
enzyme that catalyzes DNA synthesis
400
What is G0?
where cells go if they do not properly pass through a checkpoint, they are not dividing or preparing to divide
400
What is the product of the light independent reactions?
glucose (3-phosphate glycerate)
400
What is the kinetochore?
Proteins that form a complex to hold together the centromere to hold together the sister chromatids
400
In which part of the chloroplast does each stage occur?
The light reactions take place in the thylakoids.
The calvin cycle takes place in the stroma.
400
What is the function of topoismerase?
relieves twisting forces, cuts and rejoins the DNA downstream of the replication fork
500
What are the phases of mitosis & what is 1 characteristic about each of them
Prophase
Chromosomes condensed
Spindle of apparatus starts to form
Prometaphase
Nuclear envelope breaks down
Kinetochore microtubules contact chromosome at kinetochore
Metaphase
Chromosome complete migration and moves to the middle of the cell
Anaphase
Sister chromatids are separated
Non-kinetochore microtubules elongate and push ends father apart via motor proteins
Telophase
Nuclear envelope reforms
Spindle apparatus disintegrates
500
What is the oxygen evolving complex?
replaces the electron donated to pheophytin by oxidizing water
500
Explain the difference between crossing over and independent assortment.
Crossing over is the exchange of genetic information between homologous paired chromosomes. Independent assortment is the separation of those chromosomes into new daughter cells.
500
Distinguish C3 vs C4 photosynthesis
500
Label this diagram: ** on slides
look at slides