BIO 250 Microbiology Midterm Exam {2023} - Straighterline | BIO250 Microbiology Midterm Exam - A Grade

BIO 250 Microbiology Midterm Exam {2023} - Straighterline Microbiology Midterm Exam Question1 Correct Mark 5.00 out of 5.00 Flag question Question text An irregular cluster of spherical cells would be called a/an Select one: a. Palisades b. Sarcina c. Staphylococcus d. Streptococcus e. Spirilla Feedback The correct answer is: Staphylococcus Question2 Correct Mark 5.00 out of 5.00 Flag question Question text The study of the immune response to infection caused by microorganisms is Select one: a. Hypersensitivity b. Epidemiology c. Immunology d. Morbidity e. Geomicrobiology Feedback The correct answer is: Immunology Question3 Correct Mark 5.00 out of 5.00 Flag question Question text What is the maximum number of electrons in the first energy shell of an atom? Select one: a. 2 b. 4 c. 8 d. 18 e. 32Feedback The correct answer is: 2 Question4 Correct Mark 5.00 out of 5.00 Flag question Question text The movement of molecules from an area of high concentration to an area of lower concentration is called Select one: a. Facilitated diffusion b. Diffusion c. Active transport d. Osmosis e. Endocytosis Feedback The correct answer is: Diffusion Question5 Correct Mark 5.00 out of 5.00 Flag question Question text Viral tissue specificities are called Select one: a. Ranges b. Virions c. Receptacles d. Tropisms e. Uncoating Feedback The correct answer is: Tropisms Question6 Correct Mark 5.00 out of 5.00 Flag question Question text The periplasmic space is Select one: a. Larger in gram positive bacteria b. Made up of lipopolysaccharides and phospholipids c. An important reaction site for substances entering and leaving the cell d. Where peptidoglycan is located e. Absent in gram negative bacteriaFeedback The correct answer is: An important reaction site for substances entering and leaving the cell Question7 Correct Mark 5.00 out of 5.00 Flag question Question text The scientist/s that proposed that organisms be assigned to one of 3 domains is/are Select one: a. Robert Koch and Louis Pasteur b. Antonie van Leeuwenhoek c. Carl Woese and George Fox d. Robert Whittaker e. Francesco Redi Feedback The correct answer is: Carl Woese and George Fox Question8 Correct Mark 5.00 out of 5.00 Flag question Question text For which bacterial genus is mannitol salt agar selective? Select one: a. Salmonella b. Streptococcus c. Neisseria d. Staphylococcus e. Escherichia Feedback The correct answer is: Staphylococcus Question9 Correct Mark 5.00 out of 5.00 Flag question Question text Which of the following does not pertain to helminths? Select one: a. In kingdom Protista b. Parasitic worms c. Eggs and sperm used for reproduction d. Often alternate hosts in complex life cycles e. Have various organ systemsFeedback The correct answer is: In kingdom Protista Question10 -- - - - - - - - - - - - - - - -- - - - - - - - Question39 Correct Mark 5.00 out of 5.00 Flag question Question text The lactose repressor Select one: a. Is transcribed with the structural lac genes b. Is activated by binding lactose c. Is inactivated by binding lactose d. Requires lactose for its transcription e. None of the choices are correctFeedback The correct answer is: Is inactivated by binding lactose Question40 Correct Mark 5.00 out of 5.00 Flag question Question text Which of the following is not a type of microRNA? Select one: a. tRNA b. miRNA c. Antisense d. Riboswitch e. siRNA Feedback The correct answer is: tRNA