Term
| Which of the following is primarily responsible for fruit ripening in plants? |
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Definition
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Term
| Which of the following processes is responsible for the bending of the stem of a plant toward a light source? |
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Definition
| The cells on the side of the stem away from the light elongate. |
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Term
| The driving force for the movement of materials in the xylem of plants is |
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Definition
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Term
| hormone responsible for cell elongation, gravitropism and apical dominance |
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Definition
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Term
| Initiation of flowering response to photoperiod is triggered by |
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Definition
| changes in the phytochrome |
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Term
| stimulates the cells of germinating grass seeds to produce mRNA molecules that code for hydrolytic enzymes. In this case, the role of _________________ can be described as a regulator of gene activity |
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Definition
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Term
| Which best describes the mechanism by which a plant stem grows toward light? |
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Definition
| Cells on the dark side of the stem elongate more |
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Term
| Flowering plants can fertilize without water because |
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Definition
| pollen tubes deliver sperm to eggs. |
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Term
| actively dividing tissue in plants |
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Definition
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Term
| Fruits ripen faster in a closed paper bad because of |
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Definition
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Term
| responsible for cohesive property of H2O |
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Definition
| Hydrogen bonds between the oxygen atom and hydrogen atom |
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Term
| Which is the reason for the sporophyte stage being the dominate phase? |
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Definition
| Sporophytes are independent and conspicuous. |
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Term
| Long-day plants flower in |
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Definition
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Term
| The loss of leaves during autumn is because of |
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Definition
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Term
| In plants, translocation occurs because of |
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Definition
| differences in water potential between sugar sources and sinks |
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Term
| produced in roots and affects root growth and differentiation |
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Definition
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Term
| found in the tissue of ripening fruit |
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Definition
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Term
| found in the meristems of buds and roots |
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Definition
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Term
| produced in leaves, stems and roots |
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Definition
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Term
| produced in seed embryos and apical meristems |
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Definition
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Term
| Plants that require 10 hours of dark and 14 hours of light are those that bloom during the |
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Definition
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Term
| hormone in plants that results in a set of loss leaves |
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Definition
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Term
| affect the growth and differentiation |
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Definition
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Term
| produced in meristems of buds and roots, promotes seed and bud germination |
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Definition
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Term
| produced in leaves and stems in which inhibits growth and close stomatas during the night |
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Definition
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Term
| Plants stems bend toward a light source as a result of increase: |
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Definition
| cell elongation on the side of the stem AWAY from the light source |
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Term
| The driving force for the movement of materials in the phloem of plants is: |
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Definition
| a difference in osmotic potential between the source and the sink |
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Term
| The rate of flow of water through the xylem is regulated by: |
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Definition
| the force of transpirational pull |
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Term
| Flowering plants are capable of fertilization in the absence of water because the: |
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Definition
| pollen tubes deliver the sperm to the eggs. |
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Term
| Giberellic Acid stimulates the cells of germinating grass seeds to produce mRNA molecules that code for hydrolytic enzymes. In this case the role of the giberellic acid can best be described as that of ? |
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Definition
| a regulator of gene activity |
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Term
| On a sunny day, closing of stomata in plant leaves result in ? |
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Definition
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Term
| In plants that exhibit an alteration of generations in their life cycle, which of the following is the reason why the sporophyte stage is dominant? |
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Definition
| the sporophyte = form of plant that is independent and conspicuous |
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Term
| The loss of leaves that some plants experience due to the onset of autumn is a result of what hormone? |
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Definition
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Term
| produced in meristems of buds and roots; promotes seed and bud germination |
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Definition
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Term
| produced in seed embryo and apical meristems; stimulates stem elongation and root growth |
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Definition
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Term
| control movement of materials in vascular cylinder of root |
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Definition
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Term
| T/F Increased frequency of stomatal openings reduce yield of photo products |
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Definition
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Term
| Which of the following is dead at functional maturity? |
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Definition
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Term
| Most growth takes place in terminal shoots and roots in |
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Definition
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Term
| A plant with a fibrous root system, leaves with parallel venation and a seed with a single cotyledon is probably a |
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Definition
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Term
| All of the following are true about the vascular cambium EXCEPT: |
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Definition
| It produces bark in woody plants. |
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Term
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Definition
| epidermal cells in the zone of maturation |
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Term
| A tree was girdled by completely removing a ring of bark from its entire circumference to a depth to, but not including, the sapwood. This would most likely result in an inability to |
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Definition
| transport carbohydrates to roots |
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Term
Which of the following contributes most to the movement of water through xylem?
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Definition
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Term
| All of the following contribute to flowering mechanisms EXCEPT |
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Definition
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Term
| During the middle of the night, a flowering plant was exposed to a sequence of red and far-red light in the following order: red, far-red, red. All of the following are true EXCEPT: |
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Definition
| In short-day plants, flowering would be induced. |
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Term
| All of the following are found in both roots and stems EXCEPT: |
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Definition
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Term
| When stomata are open in C3 plants, one would likely find |
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Definition
| low CO2 levels in the leaf |
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Term
| Ripening of fruit is promoted by |
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Definition
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Term
| All of the following occur in a phototropic response EXCEPT: |
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Definition
| Auxin is produced at the shoot tip and diffuses down the stem |
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