Bio 41L- Photosynthesis
Accessory Pigment
Absorb wavelengths of light that chlorophy11 a misses
What kinds of organisms are heterotrophs?
Animals
What is the function of starch?
Source of energy during time of no sunlight.
What molecule do plants use to store excess glucose?
Starch molecules
Define transpiration
The loss of water vapor from leaves
Define visible
The part of the electromagnetic spectrum that we can see with our eyes, between 380 and 750 nanometers
Cuticle
To minimize transpiration
Guard cells
To open and close stomata
Phloem tissue
To transport carbohydrates
Xylem tissue
To transport water
Mesophyll cells
Where photosynthesis takes place
In an ecosystem why are heterotrophs known as consumers?
because they consume organisms in ecosystems.
Stomata
openings transpiration occurs through
what is needed to start photosynthesis?
sunlight, water, CO2, chlorophyll
Chloroplast
transform solar energy into chemical energy.
In an ecosystem, why are autotrophs known as producers?
Because they produce food for ecosystems
Which color or colors of light are best of photosynthesis?
Blue, red, violet
write out the chemical equation for photosynthesis
CO2+H2O---->C6H12O6(SUGAR)+O2
Spinach leaves contain which photosynthetic pigments?
Chlorophyll A and B , lutein, and beta-carotene
Blade
Collects sunlight.
Petiole
Connects blade to stem.
What test would you perform to determine if a leaf has starch present?
Geranium test
What are the end product?
Glucose, oxygen
Which color makes it worse for photosynthesis?
Green
How much would you perform to determine if a leaf has starch present? Explain why?
High amount Excessive exposure to sun
what are the prism effect do to visible light?
It separates visible light into different colors
What is the function of chromatography?
Lab procedure to separate chemical mixtures for each others
How much starch did the dark geranium leaf have? Explain why?
Low amount Lack of sunlight resulting in more energy being used.
Through what part of leaf does transpiration mostly occur?
Microscopio openings in leaf called stomata
What kinds of organisms are autotrophs?
Plants, algae, bacteria
Chlorophyll a
Primary photosynthetic pigment used that absorbs blue-violet and red wavelengths, reflects rest (green)
What are the separate colors that make up visible light?
Red . orange, yellow, green, blue, violet
