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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!! 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. 1.  Which of the following is a biotic factor? a. Tree b. Temperature c. Sunlight d. Den   This question is based upon the figure shown below 2.  What is the junction between two nerve cells called? a. Neuromuscular junction b. Neural junction c. Gap junction d. Synapse   3.  Neurons that conduct nerve impulses from different body parts to the central nervous system are called__________. a. Motor neurons b. Sensory neurons c. Synapses d. Efferent neurons   4.  Pelvic Girdle consists of which of the following bones? a. Scapula and clavicle b. Sternum and Scapula c. Ilium, Ischium and Pubis d. Ilium, Ischium and Scapula     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.  According to the base pairing rules, thymine binds with: a. Adenine b. Guanine c. Cytosine d. Uracil   This question is based upon the figure shown below   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. 6.  What is the above diagram called? a. Punnett Square b. Check Square c. Big Square d. Burnett Square     This Question is based on the following passage:   Blood is a liquid tissue. Suspended in the watery plasma are seven types of cells and their fragments. They are red blood cells (RBCs) or erythrocytes, platelets or thrombocytes, and 5 types of white blood cells (WBCs) or leukocytes. Thus RBCs are terminally differentiated; that is, they can never divide. They live about 120 days and then are ingested by phagocytic cells in the liver and spleen. Most of the iron in their hemoglobin is reclaimed for reuse. White blood cells have nuclei. They participate in protecting the body from infection. Platelets are cell fragments produced from mega-karyocytes. They help in blood clotting. 7.  Minute circular discs floating in the blood which carry oxygen to the tissues and carbondioxide away from them are called _______. a. White blood corpuscles(WBC) b. Red blood corpuscles(RBC) c. Monophylls d. Erythrocytes     This Question is based on the following passage:   Blood is a liquid tissue. Suspended in the watery plasma are seven types of cells and their fragments. They are red blood cells (RBCs) or erythrocytes, platelets or thrombocytes, and 5 types of white blood cells (WBCs) or leukocytes. Thus RBCs are terminally differentiated; that is, they can never divide. They live about 120 days and then are ingested by phagocytic cells in the liver and spleen. Most of the iron in their hemoglobin is reclaimed for reuse. White blood cells have nuclei. They participate in protecting the body from infection. Platelets are cell fragments produced from mega-karyocytes. They help in blood clotting. 8.  Which of the following blood cell are non nucleated? a. RBC b. WBC c. Platelets d. Thrombocytes     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.  How is the light used in fireflies? a. Communication b. To attract food c. As a mating signal d. As self defense     This Question is based on the following passage:   The immune system is a complex organ, which is highly specialized cells and a circulatory system separated from blood vessels. The organs of the immune system, positioned throughout the body, are called lymphoid organs. The word "lymph" in Greek means a pure, clear stream. Lymphatic vessels and lymph nodes are the parts of the special circulatory system that carries lymph, a transparent fluid containing white blood cells, chiefly lymphocytes. Lymph bathes the tissues of the body, and the lymphatic vessels collect and move it eventually back into the blood circulation. Lymph nodes dot the network of lymphatic vessels and provide meeting grounds for the immune system cells that defend against invaders. The spleen, at the upper left of the abdomen, is also a staging ground and a place where immune system cells confront foreign microbes. Pockets of lymphoid tissue are in many other locations throughout the body, such as the bone marrow and thymus. Tonsils, adenoids, Peyer's patches, and the appendix are also lymphoid tissues. Both immune cells and foreign molecules enter the lymph nodes via blood vessels or lymphatic vessels. All immune cells exit the lymphatic system and eventually return to the bloodstream. Once in the bloodstream, lymphocytes are transported to tissues throughout the body, where they act as sentries on the lookout for foreign antigens. 10.  Which of the following groups of organs are also lymphoid tissues? a. Tonsils, Adenoids, Peyer's patches, Appendix b. Tonsils, Adenoids, Stomach, Appendix c. Tonsils, Tongue, Peyer's patches, Appendix d. Tonsils, Adenoids, Peyer's patches, Liver     This Question is based on the following passage:   The immune system is a complex organ, which is highly specialized cells and a circulatory system separated from blood vessels. The organs of the immune system, positioned throughout the body, are called lymphoid organs. The word "lymph" in Greek means a pure, clear stream. Lymphatic vessels and lymph nodes are the parts of the special circulatory system that carries lymph, a transparent fluid containing white blood cells, chiefly lymphocytes. Lymph bathes the tissues of the body, and the lymphatic vessels collect and move it eventually back into the blood circulation. Lymph nodes dot the network of lymphatic vessels and provide meeting grounds for the immune system cells that defend against invaders. The spleen, at the upper left of the abdomen, is also a staging ground and a place where immune system cells confront foreign microbes. Pockets of lymphoid tissue are in many other locations throughout the body, such as the bone marrow and thymus. Tonsils, adenoids, Peyer's patches, and the appendix are also lymphoid tissues. Both immune cells and foreign molecules enter the lymph nodes via blood vessels or lymphatic vessels. All immune cells exit the lymphatic system and eventually return to the bloodstream. Once in the bloodstream, lymphocytes are transported to tissues throughout the body, where they act as sentries on the lookout for foreign antigens. 11.  The organs of the immune system, positioned throughout the body, are called________. a. Circulatory system b. Gizzard c. Metazoic d. Lymphoid organs     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. 12.  What are the foods grown without the use of various chemical pesticides called? a. Organic Food b. Country Food c. Free food d. Supplements   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  Name: Think you know more about GED Practice Test - Science - Zoology 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) Know the Latest News about GED Practice Test - Science - Zoology! What others think about GED Practice Test - Science - Zoology By: Sumeet on Oct 28, 2010    Great quiz By: channa ma on Jun 4, 2010    good questions, one can get benifit and improve its knowledge through it like me. thanx By: Rasheedah on Nov 12, 2009    Im really that good at Science but i think i did alright and hopefully i pass. By: mercedes on Sep 3, 2009    any one is able to finsh this By: Thara on Jul 13, 2009    Good question By: omar on Jul 5, 2009    this is a good site test!!!!!!!!!! By: Himanshu garg on Sep 30, 2008    Students who are preparing for comptetive examination they should give test on net so that they can get new questions and confidence.so this is the site where you can judge yourself. Quizzes for this month are sponsored by www.ExpertRating.com     Be A MakeUp Artist Course   Big Brother   FIFA   Soccer WAGs Quizzes   NBA 2010 Quiz   Science Quiz for Kids   Medical Terminology Quiz   Career Quiz for Kids   Home And Away Quiz   Harry Potter Quiz   Harry Potter and the Deathly Hallows   US History Quiz   Am I Pregnant Quiz   Dating Etiquette Quiz   Email Etiquette Quiz   Home     About Us      Advertise     Terms of Service     Privacy Policy     Contact QuizMoz    FAQ     SiteMap Copyright © 2022.www.quizmoz.com. All rights are reserved.