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