Explain 2 primary functions of plant leaves. Also provide one example of a modified leaf and explain why the modification has been selected for evolutionarily (what advantage does it provide?)
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Explain 2 primary functions of plant leaves.
Also provide one example of a modified leaf and explain why the modification has been selected for evolutionarily (what advantage does it provide?)
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- Explain 2 primary functions of plant roots. Also provide one example of a modified root and explain why the modification has been selected for evolutionarily (what advantage does it provide?)Roots, stems and leaves have become modified in a variety of ways over evolutionary time.describe any two actual modified plant structures, including their function and whether they are modified roots, stems or leaves.Unit 13 DQ; Structural Plant Modifications for Extreme Climates Plants have different strategies to cope with extreme climatic condition. DQ Question: Give some examples of plants growing in the arctic region and in arid region. What are the structural modifications you will find in these kinds of plants? 9%6 15 08 9.
- What is a homeobox gene? Give at least two examples of plant tissues such genes might govern in a species such as A. thaliana.Give two examples of modified stems and explain how each example benefits the plant.Leaves Dichotomous Key Using the provided dichotomous key, determine the latin name for each of the leaves below. Dichotomous Key for Leaves 1. Compound or simple leaf 1a) Compound leaf (leaf divided into leaflets) .go to step 2 1b) Simple leaf (leaf not divided into leaflets) go to step 4 2. Arrangement of leaflets 2a) Palmate arrangement of leaflets (leaflets all attached at one central point) ....Aesculus (buckeye) 2b) Pinnate arrangement of leaflets (leaflets attached at several points) ...go to step 3 3. Leaflet shape 3a) Leaflets taper to pointed tips .Carya (pecan) 3b) Oval leaflets with rounded tips IV Robinia (locust) 4. Arrangement of leaf veins 4a) Veins branch out from one central point ....go to step 5 4b) Veins branch off main vein in the middle .go to step 6 of the leaf. 5. Overall shape of leaf 5a) Leaf is heart-shaped..Cercis (redbud) 5b) Leaf is star-shaped VI VI ..Liquidambar (sweet gum) 6. Appearance of leaf edge 6a) Leaf has toothed (jagged) edge .Betula (birch)…
- Although not directly mentioned, in what ways is the plant kingdom essential to the production of the enzyme? Why is the research community pursuing mass production of this enzyme? What problem are we trying to solve? What has caused the problem? How could our agricultural system be altered to avoid this problem to begin with? Think of how livestock is raised and how we feed them. F. G. 米 H1. Emphasize the role of phylogenetic dendrogram in plant pathology? 2. why do cells have RNAi mechanism and why this mechanism is important to researchers?Which of the following has an impact on the rate at which mutations occur in plants? the magnitude of the environmental change in the area the plant lives in O the number of times DNA is replicated in gametophyte tissues the size of the plant the frequency of cell division the apical meristems
- A. What challenges face the next Green Revolution? B. What is Marker Assisted Breeding? C. Most of the improvement in agricultural crop yields has been through inputs: getting more fertilizer to the plant, decreasing weeds, spacing, reducing loss from pests and local environmental changes. But the next big engineering feat will be with the plant molecular pathways themselves, in particular, photosynthesis. The article refers to C3 and C4 plants. What are plant geneticists trying to accomplish? D. What is the #1 seller at Wal-Mart?Explain pressure flow hypothesis of translocation of sugars in plants.1. Explain how leaf surface area is correlated to plant transpiration and photosynthesis. Discuss the impact or consequences of having a small or large leaf surface area, to the overall photosynthetic rate and transpiration rate of a particular plant. 2. Distinguish compound leaves from simple leaves and provide illustrations for better differentiation/ comparison of the two. Please make sure that your illustrations are properly labelled. 3. Discuss the major functions of plant root and differentiate the taproot and fibrous root system. Afterwards, briefly explain the advantage/s and disadvantages of the two root systems in terms of resource (water and nutrients) acquisition. You may include some illustrations/ diagrams to support your discussion.
