ndependent and dependent variables of plant growing in Phototropism, Gravitropism, Chemotropism, Thigmotropism, Thermotropism and Hydrotropism.
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independent and dependent variables of plant growing in Phototropism, Gravitropism, Chemotropism, Thigmotropism, Thermotropism and Hydrotropism.
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- Positive phototropism is one of the most obvious aspects of plant growth but the mechanism behind it required considerable experimentation to finally explain. Briefly describe how positive phototropism works, including the processes, structures and/or molecules involved.In your own words differentiate the paracytic from diacytic stomata. Bried and precise explanation.Vernalization is a plant response to: Light Gravity Physical contact None of the above Plant epidermis secretes a waterproof substance called: Cuticle Wax Periderm covering Pectin Plant transpiration accounts for what % of atmospheric water vapor? 50% 90% 5% 75%
- To explain: The reason of plant wilting using cohesion theory of water transport.Classification of the different morphological characteristics according to crop productivity, adaptability and marketability of certain crops. Morphological Characteristics Plant Example Productivity Adaptability Marketability 1. large root 2. leaf/stem with trichomes 3. numerous petals 4. enlarged stem 5. numerous tillers 6. large/numerous pods 7. large leaf 8. overlapping petals/sepals 9. stem/root nodules 10. separate male/ female flowers 11. fibrous/extensive root system 12. brace roots 13. short internodes 14. waxy thick leaves 15. large flowers 16. long stalktop soil conditions. Name two structures or cells that are found in roots but not in stems: endodermis Which root system, fibrous or tap root, is more effective for storage? The epidermis of the root lacks a cuticle. Explain why this is an advantage What is the function of the endodermis? the root. LEAVES What is the function of the stomata? It provides nutrients to the tissue or organs and re
- Drag and drop the labels onto the diagram of water and mineral transport through the xylem in plants. Cholces may be used more than once or not at all. Transpiration Photosynthetic cells This will close when water is scarce. Absorption of water by root Cortex cells in root Phloem URALGive an example of an environmental condition where stomates are unable to maintaincooling of the leaf and heat stress occurs. Explain the consequences of heat stress onphotosynthesis, membrane integrity and proteins.Phytochrome, plays an important role in flowering in many plants. It can also be used to determine when lettuce seeds germinate (shown in the figure below Which scenario(s) above produce large amounts of the active form of phytochrome? A B A & C B & D
- Below is a series of pictures of the stem (x.s.) of a corn, Zea mays. 40x (x.s.) 100x (x.s.) Make a sketch of both magnifications (40x and 100x) and upload it here with the following structures labeled: epidermis, sclerenchyma (fibers), ground tissue parenchyma, vascular bundles, phloem, xylem, sieve tube members, companion cells, vessel elements, tracheidsThe Calvin cycle (light-independent reaction) occurs in the Matrix Xylem Cristae membrane Stroma Thylakoid membranePlant Physiology a. What is the precursor of periderm?