MICROBIAL GROWTH AND CONTROL QUESTIONS
AND ANSWERS A COMPLETE EXAM SOLUTIO
LATEST UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT DETAILED BEST RATED A+ FOR PASS
Nutrition - CORRECT ANSWERS chemical substances are acquired from the environment
and used in cellular activities is known as what
Essential nutrients - CORRECT ANSWERS cannot be formed by an organism, must be
supplied
Macronutrients - CORRECT ANSWERS Proteins, carbohydrates. Required in large quantities
and plays a principal role in cell structure and metabolism
Inorganic nutrients - CORRECT ANSWERS An atom or molecule that contains a combination
of atoms other than carbon and hydrogen
Heterotrophs - CORRECT ANSWERS must obtain carbon in an organic form made by other
living organisms
Autotroph - CORRECT ANSWERS uses CO2 an inorganic gas as its carbon source, not
nutritionally dependent on other living things
Growth factors - CORRECT ANSWERS must be provided as nutrient Essential amino acids,
vitamins
Chemical compounds, inorganic compounds - CORRECT ANSWERS Chemotroph
Photosynthesis, oxygenic - CORRECT ANSWERS Phototrophs
Saprobes - CORRECT ANSWERS free-living microorganisms that feed on organic detritus
from dead organisms
Parasites - CORRECT ANSWERS derive nutrients from host
, MICROBIAL GROWTH AND CONTROL QUESTIONS
AND ANSWERS A COMPLETE EXAM SOLUTIO
LATEST UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT DETAILED BEST RATED A+ FOR PASS
Endocytosis - CORRECT ANSWERS brings substances into the cell through a vesicle or
phagosome
Phagocytosis - CORRECT ANSWERS ingests substances or cells
Temperature, Oxygen requirements, pH, Osmotic pressure, Barometric pressure - CORRECT
ANSWERS Environmental Factors That Influence Microbes
Psychrophiles - CORRECT ANSWERS optimum temperature below 15 C; capable of growth
at 0 C
Mesophiles - CORRECT ANSWERS optimum temperature 20-40 C; most human pathogens
Thermophiles - CORRECT ANSWERS optimum temperature greater than 45 C
Aerobe - CORRECT ANSWERS utilizes oxygen and can detoxify it
Obligate aerobe - CORRECT ANSWERS Cannot grow without oxygen
Facultative anaerobe - CORRECT ANSWERS utilizes oxygen but can also grow in its absence
Microaerophilic - CORRECT ANSWERS requires only a small amount of oxygen
Anaerobe - CORRECT ANSWERS does not utilize oxygen
Obligate anaerobe - CORRECT ANSWERS lack the enzymes to detoxify oxygen so cannot
survive in an oxygen environment
AND ANSWERS A COMPLETE EXAM SOLUTIO
LATEST UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT DETAILED BEST RATED A+ FOR PASS
Nutrition - CORRECT ANSWERS chemical substances are acquired from the environment
and used in cellular activities is known as what
Essential nutrients - CORRECT ANSWERS cannot be formed by an organism, must be
supplied
Macronutrients - CORRECT ANSWERS Proteins, carbohydrates. Required in large quantities
and plays a principal role in cell structure and metabolism
Inorganic nutrients - CORRECT ANSWERS An atom or molecule that contains a combination
of atoms other than carbon and hydrogen
Heterotrophs - CORRECT ANSWERS must obtain carbon in an organic form made by other
living organisms
Autotroph - CORRECT ANSWERS uses CO2 an inorganic gas as its carbon source, not
nutritionally dependent on other living things
Growth factors - CORRECT ANSWERS must be provided as nutrient Essential amino acids,
vitamins
Chemical compounds, inorganic compounds - CORRECT ANSWERS Chemotroph
Photosynthesis, oxygenic - CORRECT ANSWERS Phototrophs
Saprobes - CORRECT ANSWERS free-living microorganisms that feed on organic detritus
from dead organisms
Parasites - CORRECT ANSWERS derive nutrients from host
, MICROBIAL GROWTH AND CONTROL QUESTIONS
AND ANSWERS A COMPLETE EXAM SOLUTIO
LATEST UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT DETAILED BEST RATED A+ FOR PASS
Endocytosis - CORRECT ANSWERS brings substances into the cell through a vesicle or
phagosome
Phagocytosis - CORRECT ANSWERS ingests substances or cells
Temperature, Oxygen requirements, pH, Osmotic pressure, Barometric pressure - CORRECT
ANSWERS Environmental Factors That Influence Microbes
Psychrophiles - CORRECT ANSWERS optimum temperature below 15 C; capable of growth
at 0 C
Mesophiles - CORRECT ANSWERS optimum temperature 20-40 C; most human pathogens
Thermophiles - CORRECT ANSWERS optimum temperature greater than 45 C
Aerobe - CORRECT ANSWERS utilizes oxygen and can detoxify it
Obligate aerobe - CORRECT ANSWERS Cannot grow without oxygen
Facultative anaerobe - CORRECT ANSWERS utilizes oxygen but can also grow in its absence
Microaerophilic - CORRECT ANSWERS requires only a small amount of oxygen
Anaerobe - CORRECT ANSWERS does not utilize oxygen
Obligate anaerobe - CORRECT ANSWERS lack the enzymes to detoxify oxygen so cannot
survive in an oxygen environment
