Exam Flashcards
What did the first cells look like
Prokaryote
Cyanobacteria- type of cell
Prokaryote
Cyanobacteria - effect on atmosphere
Responsible for 50% of oxygen
Cyanobacteria - what do they metabolise and create
Oxygen byproduct of photosynthesis
Created ozone
What relationship do cyanobacteria have with eukaryotic cells
Absorbed cyanobacteria to form chloroplasts.
What is special about stromatolites
Paleobiologists can see into the past
What is a dinoflagellate
Bioluminessent
Cause toxic Red tises
What is the redux boundary (sea)
Where oxygenic photosynthesis stops and anoxygenic starts.
What happens at the endoplasmic reticulum
Protein production
What do chloroplasts do
Trap light energy
What do guard cells do (plant)
Alter fluid content
steps of photosynthesis
- light and water into chloroplasts
- Co2 enters through stomata
- Sugar leaves leaf as sucrose plus starch, fatty acid and amino acid.
- calvin cycle.
ATP and NAPh goes in, nadp+ and Adp out.
What enzyme used in Calvin cycle
Rubisco
When was the cambria explosion
600m years
What did all land plants evolve from
Green algea
What do Land plants use as photosynthesis pigment
Chlorophyll a and b
Plant adaptations to life on land
Waxy cuticles /water proof
Pigments protect from uv
Symbiotic with funghi
What are non vascular plants
Simple plants
Eg. Moss
Just absorb stuff
What is gynosperm
Seeds not covered
Needle leaves no flowers
Wind pollenated
What are angiosperms
Flowering plants
What is xylem
Where water flows from root to leaves
What is thyklakoid
Where light dependent reactions take place
What is granum
Stack of thykakloids
What is stroma
Where calvin cycle takes place
