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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
where does photosyn take place?

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

tuna
starch, protein, lipid
tuna

red bull
protein

simple sugar,
milk

breakfast bar
simple sugar, protein, lipid

simple sugar, protein, lipid, starch
lettuce
simple sugar,