Biology 1001 LSU Fall (Dr. Nita) - Latest Edition Test 1, Exams of Biology

Download Biology 1001 LSU Fall (Dr. Nita) - Latest Edition Test 1 and more Exams Biology in PDF only on Docsity! BIOLOGY 1001 LSU FALL (DR. NITA) LATEST EDITION TEST 1 WITH 32 FREQUENTLY TESTED AND ACTUAL QUESTIONS VERIFIED ANSWERS 1. A biological polymer is synthesized by a. joining monomers by the removal of water by dehydration synthesis b. Breaking down monomers by the removal of water in hydrolysis reaction c. joining monomers by the removal of water by hydrolysis synthesis d. all the above - ✔✔joining monomers by the removal of water by dehydration synthesis 2. A primary structure of protein contains a. Lipids b. Only the amino acid chain linked by peptide bonds c. Disulfide bond c. Glycosidic bonds - ✔✔Only the amino acid chain linked by peptide bonds 3. Acidic solution has: a. Equal concentration of H+ and OH ions b. More of H+ than OH ions c. Less of H+ than OH ions d. None of the above - ✔✔More of H+ than OH ions 4. Amino acids contain which of the following a. Amino group (NH2) attached to carbon backbone b. Carboxyl group (COOH) attached to carbon backbone c. Hydrogen group (H) attached to carbon backbone d. All the above - ✔✔All of the above are contained in amino acids 5. Asexual reproduction in bacteria can occur by ____________. a. DNA replication b. Cytokinesis c. Binary fission d. Ionic bond formation - ✔✔Binary fission 6. Cellulase is a/an a. Human enzyme that hydrolysis cellulose to glucose monomers b. Enzyme found in some bacteria that can hydrolyze/break cellulose to glucose monomers c. Enzyme found in some bacteria that can form cellulose by crosslinking glucose monomers d. Carbohydrate found in some bacteria that can dehydrate cellulose to glucose monomers - ✔✔Enzyme found in some bacteria that can hydrolyze/break cellulose to glucose monomers 7. Choosing liquid based cooking oils, that are liquid at room temperature a. Can reduce heart diseases d. C3 H3 O3 - ✔✔C3 H6 O3 15. Inorganic molecules ____ a. contain carbon b. lack carbon c. are organic molecules d. none of the above - ✔✔Lack carbon 16. Living organisms are made of a. Cells b. virus c. Both a and b d. None - ✔✔Cells 17. Living organisms need oxygen to survive. Which statement below is true a. Oxygen is major element needed by animals b. Some bacteria do not need oxygen to survive, such as anaerobic bacteria c. All viruses need oxygen d. Only a and b are true - ✔✔A and B: Oxygen is major element needed by animals; Some bacteria do not need oxygen to survive, such as anaerobic bacteria 18. Oxygen in water are a. Electron acceptors b. Electron donors c. Slightly negative in charge d. Both a and c - ✔✔A and C: Electron acceptors and electron donors 19. Plants and Animals cells differ as a. Both have a cell wall b. Both do not have cell membrane c. Plant cells have cell wall and cell membrane and animal cells have only cell membrane d. Plant cells have no cell wall and no cell membrane and animal cells have only cell membrane - ✔✔Plant cells have cell wall and cell membrane and animal cells have only cell membrane 20. Protons are ________. a. Present in atoms that carry positive charges b. Present in atoms that carry neutral charges c. Present in atoms that carry negative charges d. None of the above - ✔✔Present in atoms that carry positive charges 21. Table salt dissolves in water by a. The hydrogen bonds formed between oxygen of water molecule and hydrogen of the hydroxyl groups in table salt b. Sodium chloride ions that contain oppositely charged ions that attract the oxygen and hydrogen of water molecules. c. Sodium chloride that contains hydroxyl residues that attract the oxygen and hydrogen of water molecules. d. All of the above - ✔✔Sodium chloride ions that contain oppositely charged ions that attract the oxygen and hydrogen of water molecules. 22. The following functional group is in its ionized form. What could be its properties and use? a. Polar, acidic b. Can form carboxylic acid c. Found in fatty acids d. All the above - ✔✔All are properties of the functional group 23. The structure shown below is: a. Polysaccharide chitin in exoskeleton of crabs b. Polysaccharide starch in exoskeleton of crabs c. Polysaccharide chitin in potatoes d. Polysaccharide cellulose in plant cell - ✔✔Polysaccharide cellulose in plant cell (Cant get picture) 24. What are the examples that associate with homeostasis in human body? a. Normal Body temperature b. Normal Glucose levels c. None of the above d. Both a and b - ✔✔Both a and b 25. What is lactose? a. A polysaccharide