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Introductory Biology 1010 Exam 2 Dr. K. S. Dulai Introductory Biology - Autumn 2007 Exam 2 Answer ALL 43 questions by marking your answers on your scantron. Take your time and understand each question before you answer. Good Luck! Please keep this document when finished. Just return your scantron to me and the page with the bonus question. As you leave I will check to see that you are enrolled in this class. To save on paper, the format is squeezed together in some places. FIRST NAME______________________________ LAST NAME__________________________________ Q1 During glycolysis, how many net molecules of ATP energy are made from each molecule of glucose consumed? a. 0 d. 24 b. 2 e. 36 c. 12 Q2 Where does glycolysis take place in eukaryotic cells? a. b. c. d. e. Q3 On the outer cell membrane On the inner cell membrane In the cytoplasm In the nucleus In mitochondrion During fermentation what is one of the end products? a. Glycerol b. Lactate c. Glutamate d. e. Glucagon Glycerol Q4 Where does the Krebs cycle take place (also known as the TCA cycle)? a. On the outer cell membrane b. On the inner cell membrane c. In the cytoplasm d. In the nucleus e. In mitochondrion Q5 What is the fate of the oxygen atoms that you breath in cellular respiration? a. They end up as carbon dioxide b. They form glucose c. They form water d. They end up in pyruvate Q6 The process of transcription; (select the best answer) a. Synthesizes new daughter DNA molecules from an existing DNA molecule b. Makes a RNA copy of a gene that is to be translated c. Pairs thymine (T) with adenine (A) d. Occurs on ribosomes e. None of the above Q7 Translation results in the production of? a. RNA b. DNA c. protein Q8 Q9 d. e. How many amino acids are there in nature, which are used to make proteins? a. 10 d. b. 20 e. c. 30 A definition of metabolism, a. is the generation of energy from the breakdown of glucose b. is how fast you gain weight c. is ‘you are what you eat’ d. is the complete set of chemical reactions that occur in living cells e. is the aerobic reactions which take place in living cells Page 1 of 5 individual amino acids transfer RNA molecules 40 50 Introductory Biology 1010 Q10 Dr. K. S. Dulai What is the universal energy currency of life? a. glucose b. protein c. DNA Q11 During aerobic respiration what is consumed? a. Glucose & oxygen b. Carbon dioxide and water c. Carbon dioxide & oxygen d. Oxygen and water e. None of the above Q12 A yeast is a(n)? a. b. c. bacteria animal plant d. e. RNA None of the above d. e. protozoan None of the above Q13 What is the main function of insulin? a. stimulates release of glucagon by the liver b. stimulates glucose uptake by cells c. causes glucose uptake by the blood d. stimulates glucose uptake by the pancreas e. None of the above Q14 An average body stores 78 percent of its reserves as fat. The next highest category of energy reserves are? a. Monosaccharides d. Proteins b. Lipids e. None of the above c. Glycogen Q15 Which kind of life forms reproduce by fission? a. Prokaryotes b. Animal c. Plant d. e. Fungi None of the above Sperm and eggs together are known as? a. spores b. gametes c. chromosomes d. e. glyph cells stem cells Q16 Q17 What is a sister chromatid? a. Individual chromosomes b. A chromosome and its copy c. Two chromosomes that come together d. Sterols e. None of the above Q18 Cancer is a loss of control over? a. Glucose storage b. Chromosome replication c. The cell cycle d. e. The growth of the cell None of the above There are how chromosomes in a normal (diploid) human cell? a. 19 b. 20 c. 22 d. e. 23 46 d. e. Spermicide All of the above Q19 Q20 Q21 Which is the correct order of the four stages of mitosis: a. Prophase, Metaphase, Telophase, Anaphase b. Prophase, Metaphase, Anaphase, Telophase c. Metaphase, Telophase, Prophase, Anaphase d. Prophase, Anaphase, Metaphase, Telophase e. Metaphase, Prophase, Telophase, Anaphase The process of making sperm is known as? a. Oogenesis b. Genesis c. Spermatogenesis Page 2 of 5 Introductory Biology 1010 Dr. K. S. Dulai Q22 What is fertilization; a. The formation of gametes b. The union of an egg with a sperm c. The delivery of a baby d. The formation of an egg in the mother e. None of the above Q23 A gene locus is; a. b. c. d. e. The location of a gene on a chromosome A form of locust Another name for a chromosome Another name for a gene None of the above Q24 What are homologous chromosomes? a. Opposite ends of the same chromosome b. Two parts of the same chromosome c. The same chromosome present in the human and chimp d. Chromosomes which pair during meiosis e. None of the above Q25 The fruit fly is diploid and has a total of 8 chromosomes. How many linkage groups are there in its cells? a. 2 d. 1 b. 4 e. All of the above c. 8 Q26 In a pedigree diagram of a human family, what shape is used to represent a daughter? a. Triangle d. Diamond b. Square e. None of the above c. Circle Q27 Why does color blindness effect more males than females a. it is an x-linked trait b. it is a y-linked trait c. it is an autosomal dominant trait d. it is an autosomal recessive trait e. None of the above Q28 For a woman, the chances of her giving birth to a Down’s child depends mostly on her; a. Sexual preferences d. Age b. Height e. None of the above c. Weight Q29 Gregor Mendel is famous for his research on; a. Peas b. Teas c. Flies d. e. Humans Fishes Q30 Griffith discovered which biological phenomenon? a. Translation b. Transcription c. Transduction d. Transformation e. None of the above Q31 The first stage of cellular respiration is performed by all living things. What is it called? a. Photosynthesis d. Glycolysis b. Heterosynthesis e. None of the above c. Respiration Q32 Which of the following is not a building block of RNA? a. sugar b. phosphate c. lipid Page 3 of 5 d. e. base None of the above Introductory Biology 1010 Dr. K. S. Dulai Q33 Which fact about plants and photosynthesis is most true? a. Plants produce oxygen and carbon dioxide just during the day b. They produce carbon dioxide and oxygen just during the day c. They produce carbon dioxide during the night and oxygen during the day d. Plants produce oxygen just during the night and carbon dioxide during the day e. None the above Q34 Which of the following term is least like the others? a. monosaccharide b. phospholipid c. fat d. e. steroid lipid Q35 A substance moving across a membrane against a concentration gradient is moving by? a. Passive transport c. Active transport b. Osmosis d. Diffusion e. Facilitated diffusion Q36 Hydrogen atoms are composed of? a. 1 electron b. 1 proton c. 2 electrons d. e. 2 protons 1 proton and 1 electron Q37 What is the tertiary structure of a protein? a. The interaction between two or more polypeptides b. The sequence of amino acids c. The domains formed by ionic interactions in different parts of a polypeptide d. The overall configuration of a polypeptide chain e. None of the above Q38 During a condensation reaction what happens? a. An oxygen and an hydrogen atom unite to form water. b. Two oxygen atoms are bonded two hydrogen atoms to form water c. Water is needed for the reaction d. Water is released from the reaction. e. None of the above Match each cell component to its function, for the questions below. Q39. Mitochondrion e a. protein synthesis Q40. Chloroplast d b. initial modification of new polypeptide chains Q41. Ribosome a c. modification of new proteins, sorting, shipping tasks Q42. rough ER b d. photosynthesis Q43. Golgi body c e. formation of many ATPs Page 4 of 5 Introductory Biology 1010 Dr. K. S. Dulai BONUS QUESTION (up to 15 points). When finished please detach just this one page and submit it to me before you leave. Please enter your name below (if you forget I will not give you any bonus points – sorry) FIRST NAME______________________________ LAST NAME__________________________________ Q). Compare and contrast mitosis and meiosis in the space below. Enter as much information as you can remember. Use the back if you need more room. THE EXAM IS FINISHED. SHOULD YOU HAVE TIME PLEASE REVIEW YOUR ANSWERS. (NOTE: ANSWERS TO SOME OF THE LATTER QUESTIONS MAY HELP YOU DEDUCE THE ANSWERS TO OTHER QUESTIONS. THANK YOU! Page 5 of 5