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