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QuizMoz offers one of the Internet's largest collection of quizzes for you to tease your brain and pit your wits against the experienced QuizMoz quiz masters. Go ahead and find out what you know about yourself and the world around you. Best of luck!!  GED Practice Test - Science - Zoology University Test Questions Facts  Average Score for this quiz: 52%  No of times this quiz has been taken: 9  No of people passing this quiz: 6  No of people failing this quiz: 3  Maximum score for this quiz: 92% Coverage : The GEd Practice Test - Science - Chemistry has been designed to test the concepts of the test taker in one of the main branches of science, namely Chemistry. This test covers topics like, structure of matter, compounds and equations, periodicity of elements, behavior of matter etc.  GED Practice Test - Science - Zoology University Test Questions Discussion Forum 1.  Place the stages of Prophase I in the correct order. a. Diakinesis, Diplotene, Leptotene, Pachytene, Zygotene b. Diplotene, Leptotene, Achytene, Zygotene, Diakinesis c. Leptotene, Pachytene, Diakinesis, Diplotene, Zygotene d. Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis Please provide appropriate updations Ques Place the stages of Prophase I in the correct order. a. b. c. d. Please describe the changes made by you 2.  Which organ acts as a filter against foreign organisms that infect the blood, and also filters out old R.B.C from the blood? a. Spleen b. Lungs c. Stomach d. Brain Please provide appropriate updations Ques Which organ acts as a filter against foreign organisms that infect the blood, and also filters out old R.B.C from the blood? a. b. c. d. Please describe the changes made by you This question is based upon the figure shown below 3.  What kind of organisms are found in the neritic zone? a. Penguins b. Elephants c. Mangrooves d. Corals Please provide appropriate updations Ques What kind of organisms are found in the neritic zone? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   DNA is a polymer. The monomer units of DNA are nucleotides, and the polymer is known as a "polynucleotide." Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group. There are four different types of nucleotides found in DNA, differing only in the nitrogenous base. Adenine and guanine are purines. Purines are the larger of the two types of bases found in DNA. Cytosine and thymine are pyrimidines. DNA is a normally double stranded macromolecule. RNA is single stranded. Two polynucleotide chains, held together by weak thermodynamic forces, form a DNA molecule. The DNA backbone is a polymer with an alternating sugar-phosphate sequence. The deoxyribose sugars are joined at both the 3'-hydroxyl and 5'-hydroxyl groups to phosphate groups in ester links, also known as "phosphodiester" bonds. 4.  Which substance in very small quantities, catalyzes and controls the natural chemical reactions of metabolism? a. Hormone b. Enzyme c. Vitamin d. Biofertilizer   Please provide appropriate updations Ques Which substance in very small quantities, catalyzes and controls the natural chemical reactions of metabolism? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   DNA is a polymer. The monomer units of DNA are nucleotides, and the polymer is known as a "polynucleotide." Each nucleotide consists of a 5-carbon sugar (deoxyribose), a nitrogen containing base attached to the sugar, and a phosphate group. There are four different types of nucleotides found in DNA, differing only in the nitrogenous base. Adenine and guanine are purines. Purines are the larger of the two types of bases found in DNA. Cytosine and thymine are pyrimidines. DNA is a normally double stranded macromolecule. RNA is single stranded. Two polynucleotide chains, held together by weak thermodynamic forces, form a DNA molecule. The DNA backbone is a polymer with an alternating sugar-phosphate sequence. The deoxyribose sugars are joined at both the 3'-hydroxyl and 5'-hydroxyl groups to phosphate groups in ester links, also known as "phosphodiester" bonds. 5.  Corals thrive in: a. Temperature of 18 degree centigrade and above b. Depth of less than 45 meters c. Salt water of normal salinities d. All of the above Please provide appropriate updations Ques Corals thrive in: a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   In animals, a substance is released by an endocrine gland into the blood stream, which carries it to remote sites in the body. This substance is called a hormone. Hormones in animals coordinate body functions by being produced in one place and acting in another. Insulin is a protein hormone of vertebrates. It affects the amount of glucose in the blood. It is secreted by the B- cells of islets of Langerhans. An endocrine gland which is attached to the floor of the brain of all craniate vertebrates and which is responsible for a number of hormones is called the pituitary gland. Thyroid is an endocrine gland of vertebrates. It secrets iodine containing hormones (thyroxine and thyroglobulin). A trace of iodine in the diet is necessary to supply the thyroid and. 6.  Which glands secrete hormones into the blood? a. Exocrine b. Endocrine c. Both endocrine and exocrine d. Stomach Please provide appropriate updations Ques Which glands secrete hormones into the blood? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   Penicillin, the "wonder drug" obtained from a fungus (penicilium notatum) was discovered while studying the bacterium Staphylococcus. 7.  Who discovered penicillin? a. Alexander Fleming b. Karl Landsteiner c. Charles Darwin d. Alfred Nobel Please provide appropriate updations Ques Who discovered penicillin? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   Even though all human blood looks same but it has certain differences which are not visible to the naked eye. These differences are due to presence or absence of certain proteins (antigens) on the red blood cells. On the basis of these antigens human blood can be classified into various groups. The most common blood group system is the ABO system discovered in 1900 by Karl Landsteiner. Depending on the presence or absence of the two antigens called A and B, this system divides the human blood into four groups namely A, B, AB, O. In 1940, Landsteiner and Weiner discovered another antigen called the Rh factor. Most human bear the Rh factor on the surface of their red blood cells and are said to be Rh positive. 8.  To which blood type does a person belong having both antigens of A and B? a. A b. B c. O d. AB Please provide appropriate updations Ques To which blood type does a person belong having both antigens of A and B? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:    Living organisms (e.g. some bacteria and fungi, glow-worms and many marine animals) produces the creations of light of various colors. Luminescence is produced by a biochemical reaction, which is catalyzed by an enzyme. In some animals the light is used as a mating signal; in others it may be a protective device. In deep-sea forms luminous organs may serve as lanterns. 9.  The production of light of various colors by living organisms is called ______. a. Thermoluminiscence b. Bioluminiscence c. Luminiscence d. Lighting Please provide appropriate updations Ques The production of light of various colors by living organisms is called ______. a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   It would be interesting to know just how the vertebrate heart evolved from the simple, two-chambered organ of early fish to the complex, multi-chambered hearts of birds and mammals, with their two atria and two ventricles. The heart found in most fish today is a relatively simple organ, with one atrium, from which blood flows into a single ventricle. After leaving the heart, blood picks up oxygen at the gills, but by the time the blood returns to the heart, most of its oxygen is gone. In the heart of modern frogs and toads, the beginnings of distinct ventricular chambers are visible. Although these animals have only one ventricle, its spongy walls help separate oxygenated and deoxygenated blood: oxygen-rich blood flowing in from the left atrium tends to get soaked up by the left ventricular wall; oxygen-poor blood from the right atrium is taken up by the right wall. When the amphibian ventricle contracts, it expels all the blood into a central artery, where the two flows are again kept largely separate by a long winding valve that spirals down the length of the artery, functionally dividing it into two channels. Most of the poorly oxygenated blood travels through the channel that leads toward the lungs and skin, where it picks up a fresh supply of oxygen. (in amphibians, the skin also functions as a gas-exchange organ) 10.  How many ventricles are present in an amphibian? a. One b. Two c. Three d. Four Please provide appropriate updations Ques How many ventricles are present in an amphibian? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   Recent studies suggest that traces of persistent chemicals may cause permanent changes in children, resulting in lower IQ levels, attention deficits and other behavioral problems. Researchers say this new data marks a paradigm shift in the way toxic chemicals may be regulated, as scientists begin linking broad human health effects to small doses of chemicals in the environment. Eating organic food may help to better promote cellular health since several agricultural chemicals used in the conventional growing of foods have been shown to have a negative effect on mitochondrial function. Several chemicals including paraquat, parathion, dinoseb, and 2-4-D have been found to increase cell membrane permeability exposing the mitochondria to damaging free radicals, inhibiting a process known as coupling that is integral to the efficient production of adenosine triphospate (ATP). ATP is an important cellular chemical that bonds at nerve terminals for normal neural communication. The low levels of cellular ATP at nerve terminals may lead to the loss of synapses and synaptic function, and may ultimately lead to cognitive decline. A child's developing nervous system is more at risk than an adult's. 11.  Which chemicals have been found to increase cell membrane permeability? a. Paraquat b. Parathion c. Dinoseb d. 2-4-D Please provide appropriate updations Ques Which chemicals have been found to increase cell membrane permeability? a. b. c. d. Please describe the changes made by you   This Question is based on the following passage:   During the development of an animal, cells differentiate so they can perform specific functions. Groups of cells with similar specializations to form a common function are referred to as a tissue. Organs are groups of several tissues that function together. Examples of organs include kidneys, spleen, liver, heart, lungs. An organ system, also called a body system, is a group of organs that work together to perform a function. 12.  Choose the correct order. a. Cells, tissues, organ system, organs b. Organ system, cells, tissues, organs, c. Cells, tissues, organs, organ system d. Cells, tissues, organs, organ system Please provide appropriate updations Ques Choose the correct order. a. b. c. d. Please describe the changes made by you Think you know more about this quiz!   Please enter your Name and what you would like to tell everyone about GED Practice Test - Science - Zoology University Test Questions  Name: Think you know more about GED Practice Test - Science - Zoology University Test Questions and would like others to know too? Whether its a great fact, a joke, a personal experience or an interesting anecdote, please share it with all the human beings on planet earth. Your contribution will help keep QuizMoz a free site for all.    (Optional)  (average submission size - 5 to 10 lines) GED Practice Test - Science - Zoology University Test Questions Discussion Forum Know the Latest News about GED Practice Test - Science - Zoology University Test Questions! What others think about GED Practice Test - Science - Zoology University Test Questions By: Reema on 11/20/2009    Great Quiz! 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