photosynthesis and respiration Flashcards
(47 cards)
(producers) living things that make their own food by building organic molecules from inorganic substances
Autotrophs
Examples of Autotrophs
Plants, Algae, Cyanobacteria (blue-green algae)
(consumers) living things that take in food from other sources
Heterotrophs
Examples of Heterotrophs
Animals, Fungi
process that converts the radiant energy of sunlight into chemical energy (glucose)
photosynthesis
process that releases chemical energy for uses by the cell
respiration
adenosine triphosphate
- compound that stores energy in cells
- consists of adenine, ribose (5 carbon sugar) and 3 phosphate groups
ATP
transfer of a phosphate group from ATP to another molecule
phosphorylation
green pigment that captures light energy
chlorophyll
Photosynthesis takes place in the _______.
chloroplast
main products of photosynthesis
carbohydrates
released from splitting a molecule of water in the beginning of the photosynthesis process
oxygen
CO2 is obtained from the ______ and enters through ______.
air; stomata
openings on the underside of the leaf
stomata (mouths)
Two guard cells control the opening and closing of the ________ based on ________ ________ in them.
stomata; osmotic pressure
Water is taken from the ground by the roots (osmosis) and moves to the leaves by ________ ________.
capillary action
creates the necessary difference in pressure for capillary action to work
transpiration
plant vascular tissue that transports water (H2O) & dissolved minerals/nutrients UPWARD from roots to leaves. Moves in ONE direction only.
Xylem
plant vascular tissue that carries food (proteins, sugars, etc) & water DOWNWARD from leaves to roots. Moves in TWO-WAY direction.
Phloem
Reactions of Photosynthesis
Light Reactions & Dark Reactions
Light (dependent) reactions depend directly on ________.
light
Calvin cycle (aka light-independent)
Dark Reactions
Dark reactions use ________ from the atmosphere to combine with Hydrogen from light reactions.
CO2
Dark reactions produce ________.
glucose (C6H12O6)