Term
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Definition
| a growth-inhibiting hormone of plants; it is involved with other hormones in dormancy |
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Term
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Definition
| the separation of leaves, flowers, and fruits from the plants after the formation of an abscission zone at the base of their petioles, peduncles, and pedicels |
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Term
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Definition
| a single seeded fruit in which the seed is attached to the pericarp only at its base |
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Term
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Definition
| a substance that dissociates in water, releasing hydrogen ions |
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Term
active transport
(pg 151) |
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Definition
| the expenditure of energy by a cell in moving a substance across a plasma membrane against a diffusion gradient |
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Term
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Definition
| a nucleic acid component that base pairs with thymine in DNA |
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Term
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Definition
| said of buds developing in internodes or on roots, or of roots developing along stems or on leaves |
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Term
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Definition
| root formed above the ground |
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Term
aerobic respiration
(pg 178) |
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Definition
| respiration that requires free oxygen |
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Term
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Definition
| a gelatinous substance produced by certain red algae and also a few brown algae; it is often used as a culture medium, particularly for bacteria |
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Term
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Definition
| a fruit derived from a single flower having several to many pistils |
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Term
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Definition
| an asexual plant propagtion technique whereby aerial stems are induced to form roots. The rooted portion of the stem is then cut and planted |
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Term
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Definition
| a gelatinous substance produced by certain brown algae; it is used in a wide varity of food substances and in pharmaceutical, industrial, and household products |
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Term
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Definition
| one of at least two alternative forms of a gene |
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Term
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Definition
| placed at different heights or distance from one another, as leaves can be arranged on a stem |
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Term
Alternation of Generations
(pg 219, 376) |
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Definition
| alternation between a haploid gametophyte phase and a diploid sporophyte phase in the life cycle of sexually reproducing organisms |
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Term
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Definition
| one of the organic nitrogen-containing units from which proteins are synthesized; there are about 20 in all proteins |
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Term
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Definition
| the -NH2 portion of an amino acid |
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