Description : .In functional allelopathy a). Toxic substances are released as such from the plants b). A precursor is released and is converted into active substances by some microorganisms c). No release of any toxic substance d). release of nitrogen from nodule of legume takes place
Last Answer : b). A precursor is released and is converted into active substances by some microorganisms
Description : It is not advisable to sleep under a tree at night because of the (a) Release of oxygen in lesser amount (b) Release of oxygen in larger amount (c) Release of carbon monoxide (d) Release of carbon dioxide
Last Answer : Ans:(d)
Description : Respiratory acidosis is that in which the blood pH is low due to increased retention of carbon dioxide caused by the lowering of the respiratory frequency or by pulmonary diseases that impair ... caused by metabolic disturbances that increase the concentration of bases (alkalis) in the blood.
Last Answer : Where are the chemoreceptors that detect the acidity of the blood and trigger the respiratory compensation located?
Description : The open "Sigrees or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : (1) tendency of carbon dioxide to form a layer along with dust smoke Explanation: Burning coal requires oxygen to chemically react. The availability of oxygen is limited in the furnace by several factors ... dioxide from forming layer along with dust smoke so as to keep the supply of oxygen intact.
Description : The open "Sigrees" or coal stoves often require fanning to sustain burning because of (1) tendency of carbon dioxide to form a layer along with dust smoke (2) lack of oxygen in the ... 3) accumulation of smoke and dust over the sigrees (4) interrupted release of moisture from the material
Last Answer : tendency of carbon dioxide to form a layer along with dust smoke
Description : How do microorganisms influence the carbon cycle on Earth?
Last Answer : Most of the organic matter present in soil originates in plant material from leaves, rotting trees, decaying roots, and other tissues. In the carbon cycle, soil bacteria and fungi recycle ... suffer an irreversible decline as the nutrients essential for life became tied up in complex molecules.
Description : Microorganisms that use organic compounds as energy and carbon sources are a. Chemoheterotrophs. b. Chemoautotrophs. c. Photoautotrophs. d. Photoheterotrophs.
Last Answer : c. Photoautotrophs.
Description : When acetate is the sole source of carbon for some microorganisms, the cycle which is used, is called A.pentose phosphate pathway B.glycolyic pathway C.glyoxylate pathway D.oxaloacetate pathway
Last Answer : C.glyoxylate pathway
Description : Theophylline is believed to benefit asthma patients by exerting the following actions except: A. Bronchodilatation B. Augmentation of diaphragmatic contractility C. Reduced mediator release D. Inhibition of antigen: antibody reaction
Last Answer : D. Inhibition of antigen: antibody reaction
Description : In Bt cotton, the Bt toxin present in plant tissue as protoxin is converted into active toxin due to (a) action of gut microorganisms (b) presence of conversion factors in insect gut (c) alkaline pH of the insect gut (d) acidic pH of the insect gut.
Last Answer : (c) alkaline pH of the insect gut
Description : If a plant is releasing carbon dioxide and taking in oxygen during the day, does it mean that there is no photosynthesis occurring ? Justify your answer. -Science
Last Answer : When photosynthesis occurs during the day, the carbon dioxide released by plants by respiration is all used up and not released. Similarly, some of the oxygen produced during photosynthesis is used up in ... and taking in oxygen even during the day, it means that no photosynthesis is taking place.
Description : How does carbon dioxide from the air enter the leaves of a plant to be used in photosynthesis ? -Science
Last Answer : The carbon dioxide gas enters the leaves of the plants through the stomata present on their surface. (b) The water required by the plants for photosynthesis is absorbed by the roots of ... the xylem vessels to the leaves where it reaches the photosynthetic cells and utilized in photosynthesis.
Description : In what process does a plant absorb carbon dioxide ?
Last Answer : Plants absorb carbon dioxide in the diffusion process.
Last Answer : photosynthesis or photophosphorylation.
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant duri
Last Answer : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal ... durign day time, and the other at night.
Description : During photosynthesis a plant uses energy from the sun to break apart glucose water and carbon dioxide. These molecules are used to make sugar to feed the plant and the plant then releases a by-product oxygen that humans breathe. this example shows that?
Last Answer : energy is not created but transferred to different forms (apex gang ;)
Description : The main cause of global climatic change is – (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover
Last Answer : (1) increase in the content of carbon dioxide in the atmosphere Explanation: Our ever increasing addiction to electricity from coal burning power plants eleases enormous amounts of carbon dioxide ... sources, we are highly dependent on burning coal for our personal and commercial electrical supply.
Description : Water vapour comes out from the plant leaf through the stomatal opening. Through the same stomatal opening carbon dioxide diffuses into the plant during photosynthesis. Reason out the above ... Both processes can happen together because the diffusion coefficient of water and CO2 is different
Last Answer : (d) Both processes can happen together because the diffusion coefficient of water and CO2 is different
Description : Which of the following processes doesn't account for an increase in atmospheric CO2 (carbon dioxide) levels? w) deforestation x) photosynthetic processes y) plant respiration z) fossil fuel combustion
Last Answer : ANSWER: X -- PHOTOSYNTHETIC PROCESSES
Description : What is the major visible constituent of the exhaust plume from a natural gas-fired power plant? w) carbon dioxide x) carbon monoxide y) smoke z) water
Last Answer : ANSWER: Z -- WATER
Description : The main cause of global climatic change is (1) increase in the content of carbon dioxide in the atmosphere (2) emissions of industrial gases (3) adding of dust (4) changes in plant cover
Last Answer : increase in the content of carbon dioxide in the atmosphere
Description : when a carbonate reacts with an acid,it produces carbon dioxide gas. how can this reaction be used in our dairy life -Biology
Last Answer : answer:
Description : The atmosphere of the primitive earth before origin of life consisted of: (a) Nitrogen, Oxygen, Ammonia, and Water vapour (b) Methane, Ammonia, Hydrogen, and Water vapour (c) Nitrogen, Oxygen, Water, and Carbon dioxide (d) Ammonia, Water, Oxygen, and Hydrogen
Last Answer : Ans:(b)
Description : There is a need to keep larger area under forests for – (1) absorption of carbon dioxide (2) protecting wild-life (3) raising precipitation (4) ecological balance
Last Answer : (4) ecological balance Explanation: Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species ... woodland. It restores eco-logical balance of all ecosystems and maintains bio-logical diversity.
Description : Oxygen which is vital for life is a product of photosynthesis and comes from – (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements
Last Answer : (3) water Explanation: The unusually high concentration of oxygen has on Earth is the result of the oxygen cycle. This biogeochemical cycle describes the movement of oxygen within and ... Photosynthesis releases oxygen into the atmosphere, while respiration and decay remove it from the atmosphere.
Description : Fruit stored in a cold chamber exhibit longer storage life because – a. exposure to sunlight is prevented b. the concentration of carbon dioxide in the environment is increased c. the rate of respiration is decreased d. there is increase in humidity
Last Answer : c. the rate of respiration is decreased
Description : Oxygen which is vital for life is a product of photosynthesis and comes from (1) carbonates from soil (2) carbon dioxide (3) water (4) oxides of mineral elements
Last Answer : water
Description : 8. Write a short paragraph on the harmful effects of microorganisms. -Science
Last Answer : Microorganisms cause diseases in plants and animals Ex; Cholera in humans is caused by bacteria called Vibrio cholera. In animals, the virus causes foot and mouth diseases. ... food material. Some microorganisms spoil leather and clothes. Microorganisms are responsible for food poisoning.
Description : 7. Write 10 lines on the usefulness of microorganisms in our lives. -Science
Last Answer : Uses of microorganisms are listed below They are helpful in cleaning up of the environment. For example, the organic wastes (vegetable peels, remains of animals, faeces, etc.) are broken ... can be used to degrade the harmful and smelly substances and thereby clean up the environment.
Description : 6. Name the microorganisms which can fix atmospheric nitrogen in the soil. -Science
Last Answer : Rhizobium is the answer
Description : 5. What are the major groups of microorganisms? -Science
Last Answer : Major group of microorganisms are as follows Bacteria Fungi Protozoans Algae Viruses
Description : 4. Can microorganisms be seen with the naked eye? If not, how can they be seen? -Science
Last Answer : Microorganisms cannot be seen by the naked eye because they are very small. They can be seen by using a microscope.
Description : Write a short paragraph on the harms caused by microorganisms. -Biology
Last Answer : Microorganisms are harmful to us in many ways. For example, microorganisms, called pathogens cause disease in humans, plants and animals. Pathogens or germs enter a healthy body through air, ... poisonous causing serious illness and even death. This food-borne illness is called food poisoning.
Description : Write 10 lines on the usefulness of microorganisms in our lives. -Biology
Last Answer : Microorganisms are useful to us in many ways. For example, Bacteria like Lactobacillus convert milk into curd. Bacteria are also involved in the making of cheese. Acetobacter aceti is used ... Some microorganisms are taken as probiotics, that are believed to provide health benefits when consumed.
Description : Name the microorganisms which can fix atmospheric nitrogen in the soil. -Biology
Last Answer : Rhizobium, Clostridium and Azotobacter.
Description : role of microorganisms in environment cleaning and sewage treatment -Biology
Description : How many types of microorganisms ?
Last Answer : 3 types of microorganisms.
Description : Why are microorganisms called protozoa ?
Last Answer : It is thought that life began at the beginning of creation from microorganisms. That is why microorganisms are also called protozoa.
Last Answer : The microorganisms that cause diseases are called pathogens
Description : The soil pollutants that affects the food chain and food web by killing microorganisms and plants are:
Last Answer : The soil pollutants that affects the food chain and food web by killing microorganisms and plants ... . Agricultural wastes C. Pesticides D. Pathogens
Description : Where do certain symboitic microorganisms normally occur in human body
Last Answer : Where do certain symboitic microorganisms normally occur in human body A. Caecum B. Oral lining and ... C. Vermiform appendix and rectum D. Duodenum
Description : What is the Describe the conditions which promote growth of microorganisms?
Last Answer : Need answer
Description : What is the bean shaped organ above that filters out microorganisms and foreign materials taken up by lymphocytes?
Last Answer : The answer is: D) lymph node.
Description : Why do microorganisms grow everywhere?
Last Answer : They have found a way to adapt or evolve to most environments.Besides, they don't grow everywhere, some just exist until thingschange for the better.
Description : What is microorganism's?
Last Answer : A microorganism is a small, typically single-celled organism,such as a bacterium, virus, fungus, or algae, that is small enoughto require a microscope to observe it.
Description : How does the body prevents the entry of microorganisms?
Description : Do microorganisms taking oxygen from an animal's blood are a helpful form of symbiosis?
Last Answer : I am not sure about the the quality of the answer. I am not sureabout the truthfulness of my answer. But i believe that it is true.The life has begun some three and half years back. It has ... harmful. I believethat all the natural things were good for you. It is better to beas natural as possible.