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plant processes
sol 7.5
Term | Definition |
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photosynthesis | the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. |
respiration | a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances. |
stomata | n botany, a stoma, also called a stomata, is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange. |
guard cells | each of a pair of curved cells that surround a stoma, becoming larger or smaller according to the pressure within the cells. |
chlorophyll | a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis. Its molecule contains a magnesium atom held in a porphyrin ring. |
chloroplast | a plastid that contains chlorophyll and in which photosynthesis takes place. |
light dependent reaction | The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis. |
light independent react | The Calvin cycle refers to the light-independent reactions in photosynthesis that take place in three key steps. |
energy parymid | An energy pyramid is a graphical model of energy flow in a community. |
producer | Science Dictionary: Producer. Producer: is an organism, either a green plant or bacterium, which is part of the first level of a food chain. |
mitochondrion | an organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner layer being folded inward to form layers (cristae). |
autotruphs | an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. |
cosumers | Deer are herbivores, which means that they only eat plants Bears are another example of consumers. Black bears are omnivores and scavengers, like skunks and raccoons, which means that they will eat just about anything. |
herbivore | Deer are herbivores, which means that they only eat plants |
omnivores | an animal who eats plants and animals |
heterotrophus | an organism deriving its nutritional requirements from complex organic substances. |
carnivores | an animal who eats only meat |
decomposers | an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material. |
spongey layer | a layer of loosely packed and irregularly shaped chlorophyll-bearing cells that fills the part of a leaf between the palisade layer and the lower epidermis -- called also spongy parenchyma, spongy tissue. |
palisade layer | a layer of parallel elongated cells below the epidermis of a leaf. |
raw matirials | the basic material from which a product is made. |
oxygen | air that is good for humans |
carbon dioxide | bad air that you breath out |
glucose | Glucose comes from the Greek word for "sweet." It's a type of sugar you get from foods you eat, and your body uses it for energy. As it travels through your bloodstream to your cells, it's called blood glucose or blood sugar. |
products | things people use |