Description : _____ which are free-living trophozoites appear to enter the body through the mucous membranes of the nose and then follow the olfactory tracts to the brain. a. NaegleriaLeishmania b. Giardia c. Babesia
Last Answer : a. NaegleriaLeishmania
Description : Choose the incorrect statement from the following: (a) The nuclear becomes weak if the nucleus contains too many protons compared to the number of neutrons (b) The nuclear force becomes weak if the ... (d) The nuclear force becomes very strong if the nucleus contains a large number of nucleons.
Last Answer : Ans:(d)
Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced? -Do You Know?
Last Answer : answer:
Description : If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be _____. A. Radioactive B. Stable C. Isotopes D. Isobars
Last Answer : ANSWER: A
Description : (3) two light nuclei combine to form a heavy nucleus Explanation: Nuclear fusion is the process of making a single heavy nucleus (part of an atom) from two lighter nuclei. The difference in mass ... . Fusion is the process that powers active or "main sequence" stars, or other high magnitude stars.
Last Answer : Helium is added to the oxygen supply of deep sea divers because it is - (1) less poisonous than nitrogen (2) (2) Lighter than nitrogen (3) Readily miscible with oxygen (4) less soluble in blood than nitrogen at high pressure
Description : The nuclear reaction in which a heavy nucleus splits into two nuclei of nearly equal mass is called - (1) Nuclear fusion (2) Nuclear fission (3) Nuclear reaction (4) Fast breeding
Last Answer : (2) Nuclear fission Explanation: Nuclear fission is a process used to create energy. It is when an atom splits apart into smaller atoms. The process gives off a lot of energy, and is used in nuclear weapons and nuclear reactors.
Description : If a U-238 nucleus splits into two identical parts, how will the two nuclei be so produced?
Last Answer : Stable
Description : The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is (A) Less (B) More (C) Same (D) Much more
Last Answer : (A) Less
Description : The process of splitting a heavy nucleus into two medium sized nuclei along with release of neutrons is called
Last Answer : nuclear fission.
Description : In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear ... reaction C. Fission nuclear reaction D. Fusion nuclear reaction (Answer) E. None of these
Last Answer : D. Fusion nuclear reaction (Answer)
Description : Double fertilisation is fusion of (a) two eggs (b) two eggs and polar nuclei with pollen nuclei (c) one male gamete with egg and other with synergid (d) one male gamete with egg and other with secondary nucleus.
Last Answer : (d) one male gamete with egg and other with secondary nucleus.
Description : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as
Last Answer : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as – Heterofertilization
Description : Which one of the following takes place during a nuclear fusion? (1) a heavy nucleus bombarded by neutrons breaks up (2) a heavy nucleus breaks up spontaneously (3) two light nuclei combine to form a heavy nucleus (4) a light nucleus breaks up spontaneously
Last Answer : two light nuclei combine to form a heavy nucleus
Description : Assertion `(A) :` In radioactive disintegrations, `._(2)He^(4)` nuclei can come out of the nucleus but lighter `._(2)H^(3)` cannot. Reason `(R) :` The
Last Answer : Assertion `(A) :` In radioactive disintegrations, `._(2)He^(4)` nuclei can come out of the nucleus but ... D. If both (A) and (R ) are incorrect.
Description : A heavy nucleus breaking up into smaller nuclei of almost equal size is called?
Last Answer : Fission
Description : What is the fate of the male gametes discharged in the synergid? (a) One fuses with the egg and other fuses with central cell nuclei. (b) One fuses with the egg, other(s) degenerates in the synergid. (c) All fuse with the egg. (d) One fuses with the egg, other(s) fuse(s) with synergid nucleus.
Last Answer : (a) One fuses with the egg and other fuses with central cell nuclei.
Description : A nuclear reaction in which small nuclei combine to produce a larger nucleus is known as:
Last Answer : ANSWER: FUSION or NUCLEAR FUSION
Description : In Rutherford's experiment involving the deflection of alpha particles by atomic nuclei, the fact that some of the alpha particles bombarding the thin gold foil were back-scattered, led to one of the ... its nucleus z) the nucleus of a gold atom occupies nearly the entire space of the atom
Last Answer : ANSWER: Y -- MOST OF THE MASS OF A GOLD ATOM IS IN ITS NUCLEUS
Description : The process of nuclear reorganization in protozoa in which the nucleus divides, each half undergoes a maturation, and the tw persisting functional nuclei reunite is known as: a) autogamy b) autolysis c) autoregression d) autotomy
Last Answer : ANSWER: A -- Autogamy
Description : Malaria fever coincides with liberation of (a) cryptomerozoties (b) metacryptomerozoites (c) merozoites (d) trophozoites.
Last Answer : (b) metacryptomerozoites
Description : A person suffering from a disease caused by Plasmodium, experiences recurring chill and fever at the time when (a) the sporozoites released from RBCs are being rapidly killed and broken down ... to enter fresh RBCs (d) the microgametocytes and megagametocytes are being destroyed by the WBCs
Last Answer : (c) the parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs
Description : The infectious stage of Plasmodium that enters the human body is (a) Trophozoites (b) Sporozoites (c) Female gametocytes (d) Male gametocytes
Last Answer : b) Sporozoites
Description : After treating intestinal amoebiasis with metronidazole, a course of diloxanide furoate is often advised to: A. Cure any subclinical hepatic involvement B. Suppress the symbiotic intestinal flora C. Eradicate luminal cyst forming trophozoites D. Both ‘B’ and ‘C’ are correc
Last Answer : C. Eradicate luminal cyst forming trophozoites
Description : Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
Last Answer : Muscle fibre is a ____ as the sarcoplasm contains many nuclei.
Description : What is the easiest way to understand giardia infection ?
Last Answer : To understand Giardia infection, stool culture should be done from a good laboratory.
Description : What is common about Trypanosoma, Noctiluca Monocystis and Giardia
Last Answer : What is common about Trypanosoma, Noctiluca Monocystis and Giardia A. These are all parsites B. These ... . They have flagella D. They produce spores.
Description : How many cells does a giardia have?
Last Answer : Need answer
Description : Stools associated with Giardia infection are generally described as loose, bulky, frothy and/or greasy with A A. The absence of blood or mucus B. The presence of blood or mucus C. The absence of mucus D. The presence of mucus
Last Answer : The absence of blood or mucus
Description : The incubation period of giardia infection in human being is generally B A. 3 days B. -2 weeks C. 4 weeks D. 4-6 weeks
Last Answer : -2 weeks
Description : A unique ultrastructural feature of Giardia is the adhesive disk also called as D A. Ventral disk B. Sucking disk C. Sucker D. All above
Last Answer : All above
Description : Trophozoite of Giardia lamblia have A A. 2 flagella B. 4 flagella C. 5 Flagella D. 6 flagella
Last Answer : 2 flagella
Description : Giardia lamblia is usually transmitted A A. by ingestion of contaminated food or water B. by intermediayte host C. Both D. None
Last Answer : by ingestion of contaminated food or water
Description : Typhoid fever is caused by (a) Shigella (b) Escherichia (c) Giardia (d) Salmonella.
Last Answer : (d) Salmonella.
Description : What is common about Trypanosoma, Noctiluca, Monocystis and Giardia ? (a) These are all parasities. (b) These are all unicellular protists. (c) They have flagella. (d) They produce spores.
Last Answer : (c) They have flagella.
Description : Sucker-Like devices allow this protozoan to adhere to the intestinal Lining. a. Cyclospora cayetanensis b. Entamoeba histolytico c. Giardia intestinalis d. Cryptosporidium parvum
Last Answer : c. Giardia intestinalis
Description : .______ enters the human body as a cyst and develops into a trophozoite in the small intestine; a severe form of dysentery may occur. a. Cryptosporidium parvum b. Entamoeba histolytica c. Giardia intestinalis d. Cyclospora cayetanensis
Last Answer : b. Entamoeba histolytica
Description : The oldest eukaryotic organisms are considered to be A- diplomonads like Giardia B- archaea C- fungi D- animals
Last Answer : archaea
Description : Giardia intestinalis are in found in a) kidney b) spleen c) duodenum d) All of above
Last Answer : c) duodenum
Description : Select the drug which is active against a variety of diarrhoea producing organisms like Giardia, Shigella, Salmonella as well as S. typhi and Trichomonas vaginalis, but is not a first line treatment for any of these: A. Metronidazole B. Mepacrine C. Cotrimoxazole D. Furazolidone
Last Answer : D. Furazolidone
Description : Metronidazole is used in peridontal abscess because of activity against: A. Entamoeba histolytica B. Giardia lamblia C. Anaerobic bacilli D. Aerobic gram positive cocci
Last Answer : C. Anaerobic bacilli
Description : In addition to fungi, amphotericin B is active against the following pathogen: A. Anaerobic bacteria B. Giardia C. Leishmania D. Rickettsiae
Last Answer : C. Leishmania
Description : Three lobed nuclei occur in
Last Answer : Three lobed nuclei occur in A. Monocyte B. Eosinophil C. Neutrophil D. Basophil
Description : Which of the following statement(s) is/are true concerning DNA? a. DNA is contained only in the nucleus of the cell b. DNA strands are encoded by the sequence of four bases-adenine, guanine, cytosine ... DNA is the intron, a sequence of three bases d. There are an infinite number of possible codons
Last Answer : Answer: a The genetic blueprint of an organism is carried in the nucleus of every cell, encoded by the sequence of four bases-adenine, guanine, cytosine and thymine, which together make up ... codons. Sixty-one of these code for amino acids and three are termination signals called stop codons
Description : Which organelles in the cell, other than nucleus contains DNA? -Do You Know?
Description : The lightest noble gas atom contains the following particles in its nucleus
Last Answer : The lightest noble gas atom contains the following particles in its nucleus A. 4 protons B. 3 neutrons ... and 1 neutron D. 2 protons and 2 neutrons
Description : What does nucleus contains the cells genetic material in the form of?
Description : Who was the first scientist whose alpha particle scatterring experiment led him to conclude that the the nucleus of an atom contains a dense center of positive charge is?
Last Answer : The experiments were being done by Ernest Marsden, and HansGeiger, under the supervision of Ernest Rutherford.
Description : What nucleus of atom contains? (1) protons (2) electrons (3) electrons and protons (4) protons and neutrons
Last Answer : (4) protons and neutrons Explanation: The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels.
Description : Nucleus of 92U235 contains __________ protons. (A) 92 (B) 235 (C) 143 (D) 325
Last Answer : (A) 92