Endospores - Study guides, Class notes & Summaries

4 stages in a bacterial growth are: - Lag phase, Exponential (Log), Stationary, Death Acid-fast staining - (differential staining) Add carbol fuchsin (primary stain) then heat over flame for few minutes. 2.Wash and then add a decolorizer (5% HCl and 95% ethyl alcohol) to remove primary color from nonacid-fast organisms. Acid-fast bacteria will retain the primary color. Alexander Fleming - discovered penicillin (the first antibiotic discovered!) Anton Van Leeuwenhoek - was the first to obser...

MCB 100 FULL Exam 1 (UIUC) Questions and Answers Graded A+ Question: What is the primary difference between prokaryotic and eukaryotic cells? Answer: Prokaryotic cells lack a true nucleus and membrane-bound organelles, while eukaryotic cells have a defined nucleus and organelles surrounded by membranes. Question: What is the role of ribosomes in bacterial cells? Answer: Ribosomes are responsible for protein synthesis, translating mRNA into polypeptide chains that fold into functional pr...

Biodiversity - Answer-The variability among living organisms from all sources and the ecological complexes of which they are part; includes diversity within and among species and ecosystems -Prokaryotes are so important to the biosphere that if they were to disappear, the prospects of survival for many other species would be dim Why study biodiversity? - Answer--To understand evolution of life -To appreciate nature -To assess its economic value -To see the larger impact of humans on the e...

MCB 2010 MDC Study Guide# 1 2024 Which of the following statements is INCORRECT regarding prokaryotic cells? a. Their DNA is not enclosed within a membrane. b. They lack membrane-enclosed organelles. c. They typically have a circular chromosome. d. They reproduce by binary fission. e. They lack a plasma membrane. -Answer-They lack a plasma membrane. 2.Each of the following statements concerning the gram-positive cell wall is true EXCEPT A) it maintains the shape of the cell. B) it is s...

MCB2010:Microbiology Final Exam Questions and Answers 2024/25 Update It forma a dark image against a bright background. it can be used to observe live or preserved, stained or unstained specimens. EX: bacteria is not living -IT CANNOT BE USED TO OBSERVE INTRACELLULAR STRUCTURES SUCH AS ENDOSPORES, DNA, RIBOSOMES, ETC OF LIVING CELLS Choose matching term fluorescence microscope phase contrast microscope dark field microscope bright field microscope Don't know? 1 of 189 Definition ...

1) What component, within the bacterial cell cytoplasm, is composed of ribonucleic acid (RNA) and protein? a. Nucleus. b. Granules. c. Ribosomes. d. Endospores. - Answer c. Ribosomes.

Microbiology Quiz 3 Correctly Answered. Which of the following is not a difference between endospores and vegetative cells? A) Vegetative cells are metabolically active, whereas endospores are dormant. B) Vegetative cells are more resilient due to their metabolic activities, whereas endospores are more sensitive to change. C) Vegetative cells normally have enzyme activity, whereas endospores do not show enzymatic activity. D) Vegetative cells stain easily using normal staining p...

UTA Microbiology Exam 3 Questions and Answers Already Passed 4 Basic Steps of binary fission 1. Growth of cell size 2. Replication of DNA 3. Division of cytoplasm 4. Septum formation & cell division Z Ring Assembly FtsZ assembles Z ring to form divisome Generation Time time it takes to double the population Lag Phase Cells adjust to culture medium; no change in population What factors determine the duration of the lag phase? Genetic makeup, media composition, initial inocul...

Microbiology Quiz 3 Exam Questions with 100% Correct Answers | Verified | Updated Which of the following is not a difference between endospores and vegetative cells? A) Vegetative cells are metabolically active, whereas endospores are dormant. B) Vegetative cells are more resilient due to their metabolic activities, whereas endospores are more sensitive to change. C) Vegetative cells normally have enzyme activity, whereas endospores do not show enzymatic activity. D) Vegetative cells sta...

What is bacitracin? - ️️A component of antibiotic ointments What are signs of an allergic reaction? - ️️cracking, bleeding, excessive swelling, bumps, dry skin, oozing pain, itchy skin, raise blisters, scabbing, burning, tender to touch, refuses to heal. What is sanitizer? - ️️an agent that reduces the number of microorganisms on a surface ex. countertops, sinks, door knobs / cavi wipes What is a disinfectant? - ️️stronger chemical that destroys bacteria on objects that ...