Term
What would be an adaptation of xerophyets?
A. Large air spaces
B. Large numbers of stomata
C. Hairs on the leaves
D. Reduced roots |
|
Definition
|
|
Term
What causes movement of water through the xylem?
A. Active transport in the root tissue
B. Evaporation of water from leaves
C. Active translocation
D. Gravity. |
|
Definition
| evaporation of water from leaves |
|
|
Term
Fertilization, pollination, and seed dispersal all occur during the reproduction of a flowering plant...in what sequence do these processes occur?
A. Seed dispersal --> pollination --> fertilization
B. Fertilization --> pollination --> seed dispersal
C. Pollination --> fertilization --> seed dispersal
D. Seed dispersal --> fertilization --> pollination |
|
Definition
| C. Pollination --> fertilization --> seed dispersal. |
|
|
Term
Which of the following help in supporting a terrestrial woody plant?
I. Xylem Tissue
II. Turgor Pressure
III. Phloem Tissue
A. I only
B. I and II only
C. II and III only
D. I, II, and III |
|
Definition
| B. I and II only....Xylem tissue and turgor pressure. |
|
|
Term
| State Two adaptations of insect-pollinated flowers. |
|
Definition
| large/ colorful petals, petals release scent, sticky pollen grains. |
|
|
Term
| Define the term Net Assimilation Rate. |
|
Definition
| the net increase in plant biomass per unit of area of leave per unit time. |
|
|
Term
| Predict what will happen to the flowering process of a short day plant if the minimal dark period is interrupted by a brief exposure to light. |
|
Definition
| it will not flower/ bloom |
|
|
Term
| Explain the role of Auxin in phototropism |
|
Definition
| when a shoot is illuminated from one side. Auxin is transported laterally to the other side. It causes greater growth on the dark side by stimulating cell elongation. |
|
|
Term
| Describe how plant growth regulators can be used commercially to produce fruits without seeds. |
|
Definition
| Gibberellic acid is normally produced by the seeds. GA makes the fruit develop. Artificial spraying of Ga can make fruits develop without seeds. |
|
|
Term
| Outline the role of the phloem in the active translocation of biochemicals. |
|
Definition
| Living tissue, composed of companion cells, companion cells are involved in ATP production, pressure flow hypothesis, movement of water into phloem causes transport, products of photosynthesis transported. |
|
|
Term
| Explain how manipulation of day length is used in the production of flowers. |
|
Definition
| some flowering plants are short day, other are long day plants. The important variable is the length of darkness/ photoperiod. Short day plants are kept in the dark during day light hours. Long day plants are artificially lit during the night. Some plants grow in greenhouses with controlled light conditions. Controlled by the plants biological clock. |
|
|
