Midterm for Bonus
Quiz by Amanda Wood
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59 questions
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- Q1Which of these describes a difference between viruses and cells?viruses have membranes made of proteins, and cells have membranes made of nucleic acidscells contain protein, and viruses only contain carbohydratesCells reproduce independently, and viruses require a host to reproduceviruses have flagella, and cells only have cilia30s
- Q2The human body is composed of organ systems. Which list represents a system organized from least to most complex?lung tissue -> trachea -> nostrils ->circulatory systemHeart -> cardiac muscle -> muscle tissue -> muscle cellintegumentary system -> skin cell -> hair -> sweat glandsMuscle cell -> muscle tissue -> biceps muscle -> muscular system30s
- Q3Cold sores are caused by the herpes simplex virus type 1. A company that wants to develop antiviral drugs would ask a research immunologist to study -the metabolism of the virushow closely related the virus is to cold virusesthe mechanism used by the virus to infect cellsmeiosis in the virus30s
- Q4Bacteriophages can infect bacteria such as a E.coliThey lack membrane-bound organellesThey have identical genomesThey reproduce by mitosisThey contain antibodies30s
- Q5Telophase is a stage of a cellular process that begins after the chromosomes have moved to opposite poles of the cell. During which cellular process does telophase occur?InterphaseMitosisTranscriptionTranslation30s
- Q6What disorder results when human body cells lose the ability to respond to internal regulatory signals that control cell growth?hemophiliadiabetescellulitiscancer30s
- Q7As cancerous cells multiply uncontrollably, abnormal tissue masses form. These masses of tissue are called -tumorsalveolicell bagsmetastasize30s
- Q8Which of the following may result in cancer? I. Poor diet II. Chemicals in cigarettes III. Ultraviolet light IV. Tobacco usenone of theseI onlyI,II, III, & IVI & II30s
- Q9Mutations in genes which regulate the cell cycle could lead to -cancerhepatitisblood poisoningRSV30s
- Q10Oncogenes are mutated forms of genes. Oncogenes can transform a cell into a tumor cell. Some tumor cells are benign, while others are malignant. How does the presence of an oncogene lead to the formation of a tumor?antibody activity is unregulatedATP production is inhibitedsomatic cell growth is inhibitedcell division is unregulated30s
- Q11Proteins and polysaccharides are polymers. These polymers are formed by dehydration synthesis. Which statement correctly identifies a difference in the structure of proteins and polysaccharides?Only polysaccharides can be folded and twisted to very specific shapesOnly proteins are formed from amino acids joined by peptide bondsOnly polysaccharides are comprised of repeating units of cytosine, adenine, guanine, and thymineOnly proteins can be large molecules with thousands of subunits30s
- Q12Carbohydrates are more easily metabolized than lipids. However, on a gram-for-gram basis lipids provide cells with more -nitrogenenergyproteinsstructure30s
- Q13Which of the following biomolecules typically contains both nitrogen and phosphate?LipidCarbohydrateProteinNucleic acid30s
- Q14Which of these substances stores the most energy?one gram of alcoholone gram of fatone gram of proteinone gram of carbohydrate30s
- Q15A biomolecule that is a large, complex set of chains composed of alternating subunits called nucleotides has which of these functions in the cell?building tissuestoring genetic informationstoring energycatalyzing cellular reactions30s