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TEST 1 BIO 113, DR. METZLER, BALL STATE UNIVERSITY
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -100 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: isotonic solution
Answer:
equal balance between solute concentration and water moves in and out of cell at equal rates
Question 2: Pasteur
Answer:
disproved spontaneous generation; used swan-necked flasks and let air in but not microbes
Question 3: Lister
Answer:
First to use disinfectants in surgical procedures
- clean instruments, patients, etc.
Question 4: active transport (bacterial cell)
Answer:
cell spends energy in form of ATP
Question 5: gram negative
Answer:
- rings
Question 6: who proved spontaneous generation untrue
Answer:
pasteur
Question 7: Types of Microorganisms
Answer:
prokaryotes, eukaryotes, viruses(smallest)
Question 8: osmosis
Answer:
movement of water across a membrane (can move accross with no protein, but sometimes special protein is needed)
Question 9: Glycocalyces
Answer:
jelly like
- composed of polysaccharides and polypeptides
- allow bacteria to stick together (biofilm)
Question 10: staining process step 4
Answer:
second stain with safranin
Question 11: diffusion
Answer:
something crosses membrane (will move from area of higher concentration to area of lower concentration)
Question 12: facilitated diffusion
Answer:
helps molecules pass through membrane gets assistance from protein
Question 13: what does a parasite require
Answer:
a host
Question 14: what do gram negative bacterial contain that gram positive doesn't
Answer:
lipopolysacuride
Question 15: gram positive cell wall
Answer:
thick layer of peptidoglycan unique polysaccharides (teichoic acid) retain crystal violet (purple)
Question 16: bacterial cell membrane
Answer:
- phospholipid bilayers (hydrophilic and hydrophobic)
Question 17: Gram staining
Answer:
The method used to determine what type of cell wall bacteria has.
Question 18: endoflagella
Answer:
flagella that spiral tightly around a cell instead of protruding
Question 19: flagella structure
Answer:
filament, hook, basal body
Question 20: Microbiology Sub-Disciplines
Answer:
- Basic research
- Medical micro
- Applied environment
- Industrial micro
Question 21: flagella
Answer:
used for movement
Question 22: Jenner
Answer:
Developed vaccine against smallpox
- used children as test subject
Question 23: Electron microscopes
Answer:
produce magnified images by focusing beams of electrons
- transmission and scanning
Question 24: Spallanzani
Answer:
Person who heated nutrients after being sealed, no microbes grew (support for biogenesis)
- didn't let air in and boiled longer than Needham
Question 25: which scientists believed in spontaneous generation
Answer:
Needham
Question 26: energy of cell
Answer:
ATP
Question 27: slime layer
Answer:
unorganized and loose
Question 28: lipopolysaccharide
Answer:
union of lipid with sugar released from dead cell wall
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