• Biology
    can live under extreme temperatures. 5. Aquatic environments undergo less extreme temperature changes and therefore provide more stable habitats than terrestrial environments. Light Intensity 1. Light is important as an energy source for photosynthesis in green plants. All other animals...
    Premium 4801 Words 20 Pages
  • Aaaasass
    Question Paper 2013 BIOLOGY PAPER – 2 (PRACTICAL) List of Items for Spotting Spotting: 1. 2. 3. 4. 5. T.S. of blastula. An inflorescence of Sweet Pea flower. T.S. of monocot leaf. An experimental set up with light source for oxygen liberation during photosynthesis (beaker, hydrilla, test tube) Model of Human Brain. 9 ISC Specimen Question Paper 2013 ...
    Premium 1685 Words 7 Pages
  • Essay
    | | | | | | | |3 |2.1 |A student is able to: |Prepare and study slides to compare the epidermal cells of onion or cell of Hydrilla leaf | | |18/1/10...
    Premium 8451 Words 34 Pages
  • Revision Exercise Form 4 Biology
    of the leaf is translucent to facilitate exchange of gases. 85. The water lily has many stomata on the lower epidermis of its leaf. 86. Photosynthesis occurs throughout that whole surface of the Hydrilla sp. plant. 87. Oxygen that is produced during light reaction comes from water. 88. In dark...
    Premium 4897 Words 20 Pages
  • Perfect Score Bio Answer
    affect the rate of photosynthesis? 2. What is the effect of different light intensity on the rate of photosynthesis? Variables: Manipulated: light intensity/distance of Hydrilla sp. to sources of light. Responding: Number of gas bubbles that are release in 1 minute/ rate of photosynthesis...
    Premium 16143 Words 65 Pages
  • dfgh
    many chloroplasts. 38] Out of the following which one is needed to demonstrate that 'Light is essential for photosynthesis'? [Marks:1] A. A germinating plant B. A variegated leaf C. A hydrilla twig kept inside a beaker containing water D. A healthy destarched potted plant 39...
    2176 Words 9 Pages
  • Papers
    is essential for photosynthesis'? [Marks:1] A. A germinating plant B. A variegated leaf C. A hydrilla twig kept inside a beaker containing water D. A healthy destarched potted plant 39] Figures A, B, C and D show leaves that has been boiled in alcohol, placed in four beakers...
    Premium 2349 Words 10 Pages
  • Notes
    observed cytoplasmic streaming in cells of the Hydrilla leaf; the movement of chloroplast due to streaming is easily visible. Most of the water flow in the roots occurs via the apoplast since the cortical cells are loosely packed, and hence offer no resistance to water movement. However, the inner...
    Premium 6638 Words 27 Pages
  • STUDENT OBJECTIVES
    . 7.3.2 Investigation of the release of oxygen during photosynthesis using hydrilla plant. Investigation of light, chlorophyll carbon dioxide as necessary factors for photosynthesis using destarch plants. Beaker, short stem funnel, test tube, match box For light: Black card paper, cellophane...
    Premium 10687 Words 43 Pages
  • Paper
    on plant growth and development include alterations in the germination process as well as in the growth of roots, stems and leaves, which may affect total dry matter production and yield. Cr also causes deleterious effects on plant physiological processes such as photosynthesis, water relations and...
    Premium 13191 Words 53 Pages
  • Compost
    chlorophyll which is vital to soil purification through photosynthesis. This plant form can handle large amounts of water, in addition to its other benefits. Microfauna contribute on a large scale, to the formation of compost; nematodes and protozoa have important function in this aggregation...
    Premium 2881 Words 12 Pages
  • Environment Studies
    long-term carrying capacity of an area, then that area is overpopulated. Consequently, some of the effects of overpopulation on natural resources include soils being damaged and forests being rapidly depleted, thus affecting natural processes such as photosynthesis, the nitrogen cycle, and a...
    Premium 8323 Words 34 Pages
  • bio past paper
    ) colourless form add oxygen → blue form   The diagram below shows an experimental set-up to study the effect of light intensity on the rate of photosynthesis of Hydrilla. The time taken (T) for the colourless dye solution to change to blue is a measure of the relative rate of...
    Premium 23002 Words 93 Pages
  • Bioaccumulation of trace metals by Hydrilla vercillata and increased levels of lead contamination by Typha latifolia
    Bioaccumulation of trace metals by Hydrilla vercillata and increased levels of lead contamination by Typha latifolia Shankarao A. Patil, Madhavi A. Korane, *Smita V. Patil, Pooja A. Salokhe Department of Biotechnology, Vivekanand College, Kolhapur ABSTRACT Key words : Aquatic plants...
    Premium 732 Words 3 Pages
  • Hydrilla
    Hydrilla’s scientific name is Hydrilla verticillata (L. f.) Royle and the common names for this plant are Florida elodea, water thyme, Wasserquirl, Indian star-vine. Hydrilla also belongs in the species classification. This plant is native to Africa, Australia, and parts of Asia. It was...
    Premium 445 Words 2 Pages
  • Hydrilla as Mercury Absorber
    are food contamination and disturbance in the food chain. Researchers have long been searching for answers for the elimination and prevention of water pollution, which will cost less than the usual and commercial methods used. Hydrilla (Hydrilla verticillata) is a halophyte. Hydrilla verticillata...
    Premium 649 Words 3 Pages
  • Effects of Hydrilla on Lake Austin
    1995). But what happens when the beauty and functionality of the lake is impeded by an invasive aquatic plant species? This paper will explore that invasive plant known as hydrilla and the effects that it has on water intake structures and power plants, personal property and equipment, as well as...
    Premium 2822 Words 12 Pages
  • carib
    dependent on the presence of the species that build their physical structure. One such species is the zooxanthellae (Symbiodinium) algae which is needed 44 by coral reefs for photosynthesis and in turn coral reef construction. This symbiosis is destroyed by small increases in temperature. The...
    Premium 25997 Words 104 Pages
  • Cells
    mind, what organelle do you think would be the most numerous inside the cells of your mouth? (Hint: what organelle is responsible for breaking things down and digesting?) lysosomes What is the movement of the chloroplasts in the hydrilla leaf cells? what its direction? and what process could...
    Premium 1269 Words 6 Pages
  • Science
    obtained from animals are ghee and cod (fish) liver oil. Mustard oil and groundnut oil are the fats obtained from plants. Ans 13 : Edible part of onion- underground stem (bulb); Brinjal – Fruit; tea- leaves Ans 14 : Photosynthesis is the process by which green plants prepare their food. In this process...
    Premium 13797 Words 56 Pages