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Plant diversity
| Question | Answer |
|---|---|
| In the pressure-flow hypothesis of translocation, what causes the pressure? | he osmotic uptake of water by sieve tubes at the source |
| Which plant hormone(s) is (are) most closely associated with cell division? | cytokinin |
| Within the female gametophyte, three mitotic divisions of the megaspore produce.. | three antipodal cells, two polar nuclei, one egg, and two synergids |
| How have fruits contributed to the success of angiosperms | by facilitating dispersal of seeds by wind and animals |
| Which of the following is responsible for the cohesion of water molecules | hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule |
| Which of the following is the correct sequence during alternation of generations in a flowering plant? | sporophyte-meiosis-gametophyte-gametes-fertilization-diploid zygote |
| Which of the following is the correct order of floral organs from the outside to the inside of a complete flower? | sepals, petals, stamens, carpels. |
| Transpiration in plants requires all of the following except: | active transport thru xylem cells |
| One of the major distinctions between plants and the green algae is that | embryos are not retained within parental tissues in green algae. |
| which of the following types of plants is not able to self-pollinate? | dioecious. |
| One important difference between the anatomy of roots and the anatomy of leaves is that | a waxy cuticle covers leaves but is absent in roots |
| In a life cycle of an angiosperm, double fertilization refers to | a pollen tube releasing 2 sperm nuclei, 1 fertilizing the egg and the other combining with the two polar |
| Which of the following is not a fundamental difference between monocot and dicot morphology and anatomy? Monocots have ___, while dicots have ___ | vascular bundles in ring; vascular bundles scattered throughout the stem |
| What tissue make up most of the wood of a tree? | secondary xylem |
| A water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. this living cell would be part of what structure? | the endodermis |
| The opening of stomata is thought to involve | an increase is the osmotic concentration of the guard cells |
| Arrange the following five events in an order that explains the mass flow of materials in the phloem. | Leaf cells produce sugar by photosynthesis -> Sugar is transported from cell to cell in the leaf -> Solutes are actively transported into sieve elements -> Water diffuses into the sieve elements -> . Sugar moves down the stem. ( 2, 4, 3, 1, 5 ) |
| Which of the following is the correct order of floral organs from the outside to the inside of a complete flower? | sepals, petals, stamens, carpels. |
| Photosynthesis occurs in | Parenchyma |
| The rapid new shoot growth on a tree during the spring arises mainly from | apical meristem |
| How many layers of vascular cambium will there be in the trunk of a 10 year-old tree | 1 |
| Which part of the life cycle does a pollen grain represent | a male gametophyte |
| Which of the following is a structure that suggests that plants are a single unit rather than many individual cells | plasmodesmata |
| land plants are composed of all following tissue types except | mesoderm |
| Which functional plant cells lack nucleus | both tracheids and sieve-cells |
| Which of the following is the correct sequence of events in a pollen sac? | microsporocyte-meiosis-microspores-mitosis-two haploid cells per pollen grain |
| What is the specific term that refers to seasonal changes in the relative lengths of nights and days? | photoperiod |
| Golden Rice is a transgenic variety that | contains daffodil genes that increase vitamin A content of the rice |
| The photoreceptor for light initiated plant response, such as flowering is a blue green pigment called | phytochrome |
| How are the vascular palnts that are involved in mycorrhizae and the algae that are involved lichens alike | they provide organic nutrients to fungal parents |
| In fungi, karyogamy does not immediately follow plasmogamy, which | creates dikaryotic cells |
| The dominant types of seed plants today are | Angiosperms & seed ferns |
Created by:
michaeltrann
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