Description : Describe the role of Bacteria and Fungi as decomposers?
Last Answer : Decomposers are those organisms, which feed on dead organisms. Many bacteria and fungi are decomposers: - Decomposition: - i) Decomposers secrete enzymes in food. ii) These enzymes break ... carbon dioxide, Hydrogen sulphide, water vapours and salts like nitrates, sulphates and phosphate etc.
Description : Bacteria and fungi are belonging to the following category of organization B A. Scavengers B. Decomposers C. Carnivores D. Amphibians
Last Answer : Decomposers
Description : Are decomposers in food chains?
Last Answer : What is the answer ?
Description : Food chain in which microorganisms breakdown the food formed by primary producers is (a) parasitic food chain (b) detritus food chain (c) consumer food chain (d) predator food chain.
Last Answer : (b) detritus food chain
Description : How can detrivores get food?
Last Answer : They are the 'clean-up crew' of an environment. They feed onanimal waste and rotting vegetation.
Description : Plant decomposers are (a) monera and fungi (b) fungi and plants (c) protista and animalia (d) animalia and monera.
Last Answer : (a) monera and fungi
Description : The imperfect fungi which are decomposers of litter and help in mineral cycling belong to (a) Phycomycetes (b) Ascomycetes (c) Deuteromycetes (d) Basidiomycetes
Last Answer : (c) Deuteromycetes
Description : Assertion `:` Most of the human haemoglobin in our body has `2 alph` and `2 beta` polypeptide chains. Reason `:` Haemoglobin is a conjugate protein an
Last Answer : Assertion `:` Most of the human haemoglobin in our body has `2 alph` and `2 beta` polypeptide ... False. D. If both Assertion & Reason are false.
Description : Assertion : If fertilization dies not occur than the corpus luteum begins to degenerate . Reason : The levels of progesterone and estrogen decline due
Last Answer : Assertion : If fertilization dies not occur than the corpus luteum begins to degenerate . Reason : The ... D. If both Assertion & Reason are False.
Description : Assertion:A network of food chain existing together in an ecosystem is known as food web. Reason: An animal like kite cannot be a part of a food web.
Last Answer : Assertion:A network of food chain existing together in an ecosystem is known as food web. Reason: An ... . D. If both assertion and reason are false.
Description : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ): Number of organisms at any trophic level depends
Last Answer : Assertion (A) : In a food chain members of successive higher levels are fewer in number. Reason (R ... . D. If both assertion and reason are false.
Description : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. Reason: the plant body of the monera, fungi,a
Last Answer : Assertion: Several organisms belonging to monera,fungi,algae and bryophytes produces gametes by mitosis. ... , fungi,algae and bryophytes is haploid.
Description : Why is a food web more realistic way of portraying an ecosystem than a food chain? a) Because it shows the relation of organisms with each other in a habitat b) Because food chains use only a ... other in a habitat d) Because it compares the number of consumers to the number of micro-organisms.
Last Answer : Because it shows the relation of organisms with each other in a habitat
Description : Azotobacter and Bacillus polymyxa are the examples of (a) pathogenic bacteria (b) decomposers (c) symbiotic N2 fixer (d) non-symbiotic N2 fixer.
Last Answer : (d) non-symbiotic N2 fixer
Description : Which of the following organisms is most likely to produce green-house gases such as nitrous oxide and methane? (1) Fungi (2) Earthworm (3) Bacteria (4) Green plants
Last Answer : (4) Green plants Explanation: When it comes to greenhouse gases many of us think first of CO2. But a large proportion of global greenhouse gas emissions are actually other gases, ... from fertilisers and methane mostly from cows. In peat pasture areas these emissions are particularly prevalent.
Description : Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane? (1) Fungi (2) Earthworm (3) Bacteria (4) Green plants
Last Answer : Green plants
Description : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a pentamer immunoglobulin jointed by I-chain
Last Answer : Assertion : IgM is a type of immunoglobulin which cannot cross the placenta Reason : IgM is a ... D. If both the assertion and reason are false
Description : Assertion : `Ca^(2+)` plays important role in the musclc contraction. Reason : `Ca^(2+)` Combines with troponin chain, displacing tropomyosin allowing
Last Answer : Assertion : `Ca^(2+)` plays important role in the musclc contraction. Reason : `Ca^(2+)` ... false . D. If both Assertion and Reason are false.
Description : Why are metal chains sometimes paired with a smaller metal chain?
Last Answer : answer:I'm not at all certain what else you're referring to here, but you may be talking about something like a chain fall. That has a heavy-duty load chain which is rated to handle the full load that ... spun by the operator (or twists in repose), but it is in no way holding any part of the load.
Description : AUG, the only identified codon for methionine is important as (A) A releasing factor for peptide chains (B) A chain terminating codon (C) Recognition site on tRNA (D) A chain initiating codon
Last Answer : Answer : D
Description : Human growth hormone has (A) One polypeptide chain and one intra-chain disulphide bond (B) One polypeptide chain and two intra-chain disulphide bond (C) Two polypeptide chains joined by one disulphide bond (D) Two polypeptide chains joined by two disulphide bond
Last Answer : Answer : B
Description : In thalassemia, an amino acid is substituted in (A) Alpha chain (B) Beta chain (C) Alpha and beta chains (D) Any chain MINERAL METABOLISM 195
Description : The portion of the immunoglobulin molecule that binds the specific antigen is formed by (A) Variable regions of H and L chains (B) Constant region of H chain (C) Constant region of L chain (D) Hinge region
Last Answer : Answer : A
Description : Allosteric enzymes contain (A) Multiple subunits (B) Single chain (C) Two chains (D) Three chains
Description : The carbon chains of prostanoic acid are bonded at the middle of the chain by a (A) 5-membered ring (B) 6-membered ring (C) 8-membered ring (D) None of these
Description : IgG cleaved by papain into (A) Two light and two heavy chains (B) Two Fab and one Fc fragments (C) Two pairs of one light and one heavy chain each (D) One Fab and two Fc fragments
Description : Which of the following statements concerning abnormalities of the haemoglobin molecule is true? 1) Alpha thalassaemia is due to a deficiency of beta-chain production 2) HbS is caused by a ... is an adverse prognostic sign 5) oliguneoclitide probes may assist in the diagnosis of haemoglobinopathies
Last Answer : Answers-2 Alpha Thalassaemia is due to abnormalities of the alpha chain. Persistence of HbF has survival advnatages in severely affected subjects. C-alpha 16, beta 11. e-Hb electrophoresis(Dr Shu Ho)
Description : . In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher (A) Densities (B) Melting point (C) Tensile strength (D) Hardness, rigidity & brittleness
Last Answer : (D) Hardness, rigidity & brittleness
Description : Sickle cell anaemia induce to (a) change of amino acid in a-chain of haemoglobin (b) change of amino acid in b-chain of haemoglobin (c) change of amino acid in both a and b chains of haemoglobin (d) change of amino acid either a or b chains of haemoglobin.
Last Answer : (b) change of amino acid in b-chain of haemoglobin
Description : An antigen binding site on the IgG antibody is a combination of a. One variable region from a light chain and one from a heavy chain. b. Two variable regions from two light chains. c. Two ... from two heavy chains. d. One variable region from a constant region and one from a variable region.
Last Answer : a. One variable region from a light chain and one from a heavy chain.
Description : The primary structure of a protein refers to : (a) whether the protein is fibrous or globular (b) the amino acid sequence in the polypeptide chain (c) the orientation of the amino acid side chains in space (d) the presence or absence of an α-helix
Last Answer : the amino acid sequence in the polypeptide chain
Description : Which of the following is the quaternary structure of proteins concerned with? (a) sequence of amino acids in the peptide chain (b) description of the way the peptide chains are arranged with ... (c) location of the disulfide bridges in the peptide chain (d) conformation of the protein backbone
Last Answer : description of the way the peptide chains are arranged with respect to each other
Description : Why is the halogenation of alkanes considered a chain reaction? (a) it occurs quickly. (b) it occurs without the generation of intermediates. (c) each step generates the reactive intermediate that causes the next step to occur. (d) the reaction allows long chains of halogenated alkanes to be formed
Last Answer : each step generates the reactive intermediate that causes the next step to occur
Description : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason : Interferons stimulate inflammation at the site
Last Answer : Assertion : Interferons are a type of antibodies produced by body cells infected by bacteria. Reason ... . If both the assertion and reason are false
Description : Of the microorganisms, ____ are the greatest threat to food safety. a. viruses c. fungi b. parasites d. bacteria
Last Answer : d. bacteria
Description : Which of the following groups of organisms digest their food before it actually enters the organism? (1) Bacteria and Protozoa (2) Bacteria and Fungi (3) Fungi and Protozoa (4) Mucor and Rhizopus
Last Answer : Bacteria and Fungi
Description : The layer of the marine biome where the animals are adapted to survive on detritus under even greater pressure is ………………..
Last Answer : The layer of the marine biome where the animals are adapted to survive on detritus under even greater ... the Disphotic layer (d) the Aphotic layer
Description : The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is A. 100 cm B. 110 cm C. 120 cm D. 150 cm
Last Answer : ANS: C
Description : The flow velocity in detritus tanks is A. 0.05 m/sec B. 0.09 m/sec C. 1.25 m/sec D. None of these
Last Answer : ANS: B
Description : In detritus tanks, A. Flow velocity is kept 0.09 m/sec B. Detention period is kept 3 to 4 minutes C. Organic and inorganic materials are separated D. All the above
Last Answer : ANS: D
Description : Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks. Consumers A D C Uptake Run off Soil solution B A B ... minerals Detritus (c) Detritus Rock minerals Producers Litter fall (d) Producers Litter fall Rock minerals Detritus
Last Answer : (c) Detritus Rock minerals Producers Litter fall
Description : The breakdown of detritus into smaller particles by earthworm is a process called (a) humification (b) fragmentation (c) mineralisation (d) catabolism
Last Answer : (b) fragmentation
Description : Mass of living matter at a trophic level in an area at any time is called (a) standing crop (b) detritus (c) humus (d) standing state.
Last Answer : (a) standing crop
Description : Fine grit present in sewage is removed in the __________ during sewage treatment. (A) Grit chamber (B) Detritus tank (C) Trickling filter (D) Skimming tank
Last Answer : (B) Detritus tank
Description : During sewage treatment, effluent from which one of the following treatment units has minimum wt/vol amount of suspended solids? (a) Detritus channel (b) Primary sedimentation tank (c) Secondary sedimentation tank (d) Activated sludge process aeration tank
Last Answer : (d) Activated sludge process aeration tank
Description : Indicate which of the statement is incorrect (a) The detritus tank is type of a grit chamber (b) In detritus tank, velocity of flow is further reduced (c) Grit chambers are provided in the sewage ... to remove the heavier inorganic matter as grit, sand etc. from the sewage (d) None of them*
Last Answer : (d) None of them*
Description : 34. Decomposition rate is slower if detritus is ... b) Rich in Nitrogen b) Rich in lignin and chitin c) Rich in sugars d) Rich in fats and lipids
Last Answer : b) Rich in lignin and chitin
Description : 14. Decomposition rate is slower if detritus is ... a) Rich in Nitrogen b) Rich in lignin and chitin c) Rich in sugars d) Rich in fats and lipids