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- O b. Green plants do not have asex oduction. Green plants differ from the algal Charophycea in: Green plants do not have growth throughout the whole length of the stem. a. O c. Green plants have seeds. d. Green plants have vascular tissue. O e. Green plants use phragmoplasts.1. Distinguish taxis from a tropism. 2. What is thigmotaxis? Describe what happens when the Paramecium bumps against something. 3. What is chemotaxis? Does the acid solution cause a positive or negative response in the Paramecium?a. How do stem being cut underwater affect the speed of absorption of water? b. Why do wilted plants are slow when it comes to absorption of water?
- 1. In agriculture, briefly discuss three main phases of growth in relation to crop growth and development. 2. Plant requires large amount of mineral elements from external source to complete their life cycle. Discuss six issues that suggestively influence the uptake if mineral elements.II. Plant A. Explain how respiration takes place in plants in: Roots Leaves Stem20 (8) a. Which one of the following phenomena is responsible for transportation of food through phloem tissue : a. Mass flow b. Diffusion C. Osmosis b. The reason for my answer is: a. Movement of particles for higher concentration to lower concentration b. Movement of particles of a material to one direction due to gravity C. Movement of particles of a material to direction due to pressure gradient d. Movement of materials as a bulk due to pressure gradient
- State ONE difference between the two pathways of water and mineral uptake in plants root.Minerals dissolved in watera. enter root epidermal cells by active transport.b. take an extracellular pathway through roots to thevascular cylinders.c. are transported up through phloem to the leaves.d. enter root cortex cells by diffusion.i) list TWO adaptations that show that the plant conserves water.ii) Photosynthetic cells produce starch and may be stored. Describe how one may test for the presence of starch on a piece of potato tissue. iii) Give TWO characteristics of monocotyledonous plants. d. The transition of plants from an aquatic environment to a terrestrial one has broughtabout many evolutionary adaptations for plants to survive on land. Give ONE adaptationfor each of the following divisions:i) Mosses: ii) Gymnosperms.
- . Based on the data, does the initial uptake of water by radishseeds vary with temperature? What is the relationship betweentemperature and water uptake?1. Discuss the cellular and physiological effects of temperature change on living organisms. 2. Provide an explanation for the observed behavioral responses of fish to temperature changes. In general, what are the physiological effects of temperature changes on living organisms? 3. Provide a feasible explanation for the observed effect of salinity on % germination and growth rate in monggo seeds.Compare and contrast the acquisition and transport of water and nutrients in plants with the acquisition and transport of nutrients in humans. kind of in detail if possible.