All Rights Reserved | Home | About Us | Contact Us | Copyright | Terms Of Use | Privacy Policy | Advertise, Give situations that may be served by observation data. The results are shown in the table below. Aquatic plants have adaptations which help them obtain carbon dioxide and sunlight under water for photosynthesis to occur. Briefly state two adaptation for each of the following cells to their functions Name two plant processes in which diffusion plays an important role. Why don't libraries smell like bookstores? Although the global balance is a net production of oxygen, a supersaturation often occurs during daylight hours with the consequent desorption to the air, resulting in a depletion at night. (a) Account for the change in... Name support tissues in plants characterized by the following Aquatic plants undergo photosynthesis and cellular respiration much like terrestrial plants. Also, Tailing (1976) showed similar adaptations in late-summer Plants make their own food during the process of photosynthesis. Adaptations are many and varied. By having a hollow stem, this produces more air space in the plant, thus provides more buoyancy, which is needed especially if the plant is not fully submerged. Using just three simple ingredients (carbon dioxide, water, and sunlight) plants and bacteria are able to make their own food. These include: The presence of little or no mechanical strengthening tissue in stems and leaf petioles. They obtain moisture from the air and make food by photosynthesis.Most epiphytes are ferns or orchids that live in tropical or temperate rainforests (see Figure below).Host trees provide support, allowing epiphyte plants to obtain air and sunlight high above the forest floor. In terms of chloroplast development, light regulates the biogenesis of the photosynthetic apparatus in chloroplasts and the adaptation of that apparatus to the environment so as to maximise photosynthesis. Adaptation of Plants in an Aquatic Habitat ... and there are many different species that make up the group of aquatic plants known as water lilies. Adaptations to Air. It allows light to pass through while protecting the leaf. It produces glucose, and oxygen as a by-product. View More Biology Questions and Answers | Return to Questions Index, The diagram below shows chemical reactions A and B which are controlled by enzymes x and y. The stems of many aquatic plant have large air-filled areas to increase buoyancy. Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions. Plant Adaptations to Water. It has a number of adaptations that allow it to thrive in this environment, ... plants need sun for photosynthesis. Thin and transparent epidermis: - It allows more light to reach the palisade cells below.. Palisade mesophyll: - has cells vertically arranged such that many can fit into a small space. Plants were fixed by a flexible ribbon to a hollow base (15 cm long, 9.5 cm wide, 4.5 cm high), in the natural growth position. Plants were tied to a profiled stainless steel rod fixed to the balance . a plant has 20% oxygen in its leaves, 15% in its stem,10% in the root parts, and only 2- 5% in the root hairs. Aquatic plants are plants that have adapted to living in aquatic environments (saltwater or freshwater).They are also referred to as hydrophytes or macrophytes to distinguish them from algae and other microphytes. (a) Name two... The aquatic plants are exposed (especially the totally submerged ones) to the shortage in oxygen which is dissolved in the water, the shortage in the light and the presence of the water currents.. Its overall growth is either poorly developed, reduced or absent. In the plant species like Lemna, Ecchorhnia etc. Work out the actual diameters of each cell in micrometers.c) Suggest the identity of the solution Q.d) Account for the change in cell I above.e) State any one importance of the physiological process being demonstrated above in animals, Two fresh potato cylinders of equal length were placed one in distilled water and the other in concentrated sucrose solution:(a) Account for the change in length of the cylinder in:(i) Distilled water(ii) Sucrose solution(b) (i) What would be the result in terms of length if a boiled potato was used? The oxygen is taken in from the air by photosynthesis and travels through the plant and out the root hairs. Their roots are attached to the bottom of the pond. (A) Plants grown under well watered conditions (B) Plants of the same age after two cycles of drought- stress treatment Ajay K. GargAjay K. GargAjay K. Garg (Ajay K. Garg,2002) 31. Plants called epiphytes grow on other plants. Using just three simple ingredients (carbon dioxide, water, and sunlight) plants and bacteria are able to make their own food. On the west side are two smaller rooms, the aquatic plant room and the desert plant room. While for marine plants, they are adapted with waxy stems and leaves. Photosynthesis by aquatic plants appears to enter even more variation. Lotus; Water Hyacinth; Morphological Adaptations: Aquatic plants have very thin cuticle or no cuticle at all because the cuticle prevents water loss. Aquatic plants require special adaptations for living submerged in water, or at the water's surface. Aquatic plants and algae produce oxygen in the presence of light through photosynthesis and at the same time consume it constantly for respiration. (ii) Enzyme y, Date posted: October 3, 2019. There are a number of stomata on either side of the leaves. Answers (1). What are the adaptations of aquatic plants to photosynthesis? Hence, the pr… The internal structure of the leaf is also adapted to promote efficient photosynthesis:. All plant shoots grow quickly towards the light to maximise photosynthesis. When did organ music become associated with baseball? Growth towards the light and other tropisms ensure that plants can respond to changes in their environment. The diagram below shows cells in plants:-(a) Identify the cells shown above(b) Explain how the cells are adapted to their function(c) Explain how accumulation of carbon (IV) Oxide in the cells above would lead to the closure of structure A, The two cells shown below are obtained from two different potato cylinders which were immersed in tow different solutions P and Q.a) i) Name the structure labelled A.ii) State the function of structure B.b) If eight of cell I were observed across the diameter of the filed of view of 0.5 mm. PHOTOSYNTHESIS OF AQUATIC PLANTS Another interest~ng adaptation of photosynthesis occurs in submerged aqua tic plants, which may absorb a considerabIe quantity of bicarbonate in addition to dissolved carbon dioxide gas. Photosynthesis is recognized as one of the most efficient ways to increase NUE and crop yield (Kumar et al., 2006). Crassulacean acid metabolism, also known as CAM photosynthesis, is a carbon fixation pathway that evolved in some plants as an adaptation to arid conditions. Explain why the test for starch in the leaf was negative. Copyright © 2020 Multiply Media, LLC. This aids in absorbing water, while preventing the entry of salt to their system. Dissolved oxygen can be measured directly to determine if aquatic plants undergo photosynthesis or cellular respiration in different conditions. Some authors have suggested that aquatic plants carry out C 4 photosynthesis and cite in support measurements of discrimination between 13 C and 12 C. We propose that this discrimination can also be a manifestation of the presence of unstirred layers or membrane transport or both. In harsh, dry heat, every drop of water must be used to survive. The two cells shown below are obtained from two different potato cylinders which were immersed in tow different solutions P and Q. Adaptations in hydrophyte are of three kinds, ecological, physiological and anatomical. The stomata of many cacti lie deep in the plants’ tissues. Plant Adaptations Desert plants are adapted to their arid environment in many diff erent ways. Corn, potato and succulents as examples of plants C4, C3 and CAM, respectively. When did Elizabeth Berkley get a gap between her front teeth? The smoothness of the bark … As diminishing returns of increasing investment of N fertilizer, excessive application of N fertilizer causes stagnation of crop yield and lowers nitrogen use efficiency (NUE) of crops (Lawlor, 2002). Plants are the main producers and have numerous structural and behavioral adaptations to aid photosynthesis. Whether a plant is purely aquatic (water dwelling) or if it grows in boggy or muddy conditions, its survival depends on appropriate adaptations. Wither and die on land very small stomata and fewer stomata than those of other plants the.. 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