Photosynthesis & Chloroplast Flashcards
A process involving the conversion of light energy to chemical energy
Photosynthesis
Autotrophs
Make their own food
Two Modes of Nutrition and Energy Transfer
Primary and Secondary Consumers
Why is photosythesis important?
Provides energy needed for the plant to function
Powers up cellular processes
Requirements for photosynthesis
Sunlight
Water (H2O)
Carbon Dioxide
Products of photosynthesis
Glucose
O2
Where does photosynthesis occur?
Thylakoids in the Chloroplast
- Is a plastid
- Green in color
- Double Membrane
- In parenchyma
Chloroplast
Which part of the leaf is chloroplast located?
Parenchyma, particularly in the Mesophyll
Why does it contain its own DNA?
It was once a living organism engulfed by another (cyanobacteria)
____% main cell, ____% own structure
90%; 10%
Structure of Chloroplast
Membrane (Outer, Inner)
Intermembrane space
Thylakoid
Grana
Stroma
Stroma Lamellae
Permeable to small molecules
Outer membrane
Highly selective
Inner Membrane
Space between the membranes, contains nucleotides
Intermembrane space
Nucleotide phosphorylation (cellular respiration) occurs where?
Intermembrane space
What structures are responsible for the movement of molecules in and out of the chloroplast
Inner and Outer Membrane
Membrane bound flattened disks containing chlorophyll
Thylakoid
Space inside the thylakoid
lumen
Stack of Thylakoids
Grana/Granum
Connects a stack of thylakoids
Stroma Lamellae
Where does photosynthesis occur in the structures?
Thylakoids - Light Dependent
Stroma - Calvin Cycle
How does it start?
Through exposure to sunlight
Fluid that encompasses thylakoids
Stroma
What is stroma composed of?
DNA
Ribosomes
Enzymes
