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46 Cards in this Set

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What is photosynthesis?
The process by which certain kinds of organisms capture the energy of sunlight and convert it into stored chemical forms of energy.
What is the relationship between entergy content of light, and the wavelength?
The higher the energy, the smaller the wavelength!
What colors of light contain reletively more energy
Blue/Green contain more energy than organge/red
What happens when light encounters an object?
It can be reflected, absorbed or pass through the object (be transmitted) Only ABSORBED light is used in photosynthesis
What are pigments?
molecules that absorb light
What pigment is most important to photosynthesis?
cholorophyll a
What is chromatography?
The process through which pigments in a mixture are isolated and purified.
What is the function of the cuticle in the plant?
It prevents water loss
What region of the leaf has cells with the greatest number of choloroplasts?
Palisade layer
From top to bottom, outline a plant cell
Cuticle
upper epidermis
palisade layer
spongy layer
xylem
phloem
lower epidermis
guardcalls/somas
Where are the stoma located on the leaf?
bottom of the leaf
What is an absorption spectrum?
a graph showing the amount of light absorbed by individual pigments at various wavelengths
What are accessory pigments?
molecules that absorb light energy and pass it to a cholorphyll a
What is chlorophyll a?
the green pigment of photosynthesis.
What is cholorphyll b?
an accessory green pigment
What is a chromatogram?
developed chromatography strip in which pigments have been separated from one antoher
What is the epidermis of a plant?
the outermost layer of cells in plants, especially in leaves
What are guard cells?
specialized epidermal cell that occur in pairs on leaf surfaces and regulate the opening into the leaf interior
What is the palisade layer?
chloroplast-bearing calls in the interior
What is metabolism?
The collection of all chemical reactions that are essential for life.
What is the startch content of the endosperm and embryo of a seed?
In the Endosperm there is high startch content. In the Embryo there is low/no startch
Why is the lung sub-divided into tiny "air sacs"
to increase surfact area
How does oxygen enter the cappillaries surrounding each alveolus?
By diffusion
What is an ectotherm?
An organism that cannot regulate its own body temperature, but rather the temerature matches the termerature around it
What is an endotherm?
an animal who's body temperature comes from within
What are alveoli?
tiny air sacs at the nd of the bronchioles in the lungs
What are bronchi?
tubes branching from the trachea and directing air into each lung
What are bronchioles
tubes from the bronchi that lead to clusters of alveoli
What is the diaphragm?
a muscle sheet at the bottom of the chest cavity. Contraction of this muscle draws air into the lungs
What is the endosperm?
the food source for developing plant embryos
What ist he epiglottic?
The flap at the top of the trachea that prevents food from entering or blocking air pathway
What is a spiracle?
the opening in arthropod body wall through which air enters tracheae
What is thermal strategy?
metabolic patterns of organisms
What are trachea?
air tubes leading from back of mouth down into chest cavity AKA the windpipe
What are tracheae
tiny tubes in insect body that deliver oxygen directly to metabolizing tissues
Arteries?
Carry blood AWAY from the heart
Veins?
Carry blood toward the heart?
Capillaries?
tiny vessels in the tissues and organs that connect the arteries to the veins
Can you label a heart?
aorta/pulmonary artery pul. veins
vena cava superior left atrium
right atrium semilunar val. mitral val.
tricuspid valve left vent
right vent
vena cava inferior
LEFT sides (w/pulmonary) pumps blood where?
TO LUNGS
List Pulmonary circut
1. right ventricle
2. semilunar valves
3. pulmonary artery
4. lungs
5. pulmonary veins
6. left atrium
Which side contains blood with less oxygen?
right
List Systemic circut
1. left ventricle
2. semilunar valves
3. aeorta
4. body
5. vena cava superior
6. right atrium
What is angina?
pain in the chest caused by inadequate blood flow to the heart
What is an angioplasty?
you know.
What is the aorta?
pricipal artery of the systemic circuit coming out of the heart