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26 Cards in this Set
- Front
- Back
photosynthesis
and equation in words |
conversion of light energy into chemical energy
6C02 + 6H20 = C6H12O6 + 6O2 use light energy to convert inorganic raw materials from the air and soil into organic compounds |
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where does photosyn take place?
more specifically? |
chloroplasts --- stroma
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plants do give off oxygen, but they also give off SOME...
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CO2
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chromatography
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used to separate mixtures.. for the leaf, we separated plant pigments (similar molecules)
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relationship between photosynthesis and respiration
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plants make organic compounds, plants and animals use the organic compounds as energy sources (resp), energy used for work/ lost as heat
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plants take nutrients from soil how?
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substances transported from the roots to the photosynthetic tissue in leaves and stems via the vascular tissue called xylem
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photosynthetic pigments that capture light energy
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chlorophyll a -- grass green
chl b - olive green B-carotene - bright yellow to orange zanthophyll -- light yellow |
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respiration
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biological process by which organic food molecules are biochemically broken down in the cell with a resultant release of energy
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how can we measure respiration?
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-amt of CO2 produced
-measure oxygen consumed -measure loss of weight -measure energy yeild |
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anaerobic respiration
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cells that produce ATP when oxygen is not present, not efficient, CO2 not completely broken down, so not completely used
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aerobic respiration
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capable of extracting energy through the complete chemical breakdown of glucose
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warm-blooded terms
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homeothermic, endothermic
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cold-blooded terms
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poikilothermic, ectothermic
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KOH absorbs`
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CO2
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when we get cold..
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shiver, increase metabolic rate without noticable muscle contractions
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nutrition
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science of foods, nutrients and other substances and their actions within the body (including ingestion, digestion, etc)
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digestion
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consists of the chemical and mechanical breakdown of food and the absorption of digestion products into the body
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intracellulat digestion
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food engulfed by a single cell in a process called phagocytosis -- stays in vesicle, then fuses with a lysosome
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extracellular digestion
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digestive enzymes secrected from the cell, where they break down food to chemical constituents
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two types of extracellular digestive systems
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simple: no body cavity - enzymes released directly into the environment
complex: ingestion of food into a body cavity specialized for digestion |
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complex digestive systems (2types)
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incomplete: single opening (worm)
complete: 2 openings |
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BMR
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basal metabolic rate -- energy your body needs at rest
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peanut butter
tuna |
starch, protein, lipid
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tuna
red bull |
protein
simple sugar, |
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milk
breakfast bar |
simple sugar, protein, lipid
simple sugar, protein, lipid, starch |
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lettuce
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simple sugar,
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