MICRO 290 Midterm Recap | Microbiology | Complete Exam Review Questions & Verified Answers
Why don't archaea cause disease in humans, plants, or Because they require extreme conditions to live in
animals? Extremophiles
Largest group of archaea that produce methane methanogens
Mycoplasma lack cell wall
Mycoplasama are gram negative and smallest free living cells
Clostridium produces endospores
Bacillus produces endospores and spores
Listeria contaminates dairy products and products in fridge
Lactobacillus produces yogurt, buttermilk, pickles
probiotic (it's good)
Streptococcus cause strep throat & scarlet fevers
Selenomonas causes dental plaque
Epulopiscium causes severe diarrhea
What does Pseudomonas cause? UTI, eary & lung infection
Where can we find Pseudomonas? In the water
High G+C Gram Positive Bacteria have more than 50% guanine and cytosine nucleotides in their DNA
What are some bacterias that are high G+C Gram Corynebacterium
positive bacterias? Mycobacterium
Actinomycetes
Mycobacterium causes tuberculosis
Mycobacterium is resistant to gram staining because? it has mycolic acid in it's cell wall that causes it to grow slowly
Streptococcus causes strep throat
, MICRO 290 Midterm Recap | Microbiology | Complete Exam Review Questions & Verified Answers
These are multi-drug resistant Streptococcus & Staphylococcus
Staphylococcus is found on Human skin
What is the most common sexually transmitted bacteria Chlamydia
in the US
What is the difference between haploid and diploid Haploid: one set of chromosomes
Diploid: two sets of chromosomes
Nuclear division happens in Eukaryotes
Two types of reproduction in eukaryotes Mitosis and Meiosis
What is mitosis used for? growth, repair, asexual reproduction
What are the 4 phases of mitosis prophase, metaphase, anaphase, telophase
What happens in mitosis prophase? Centrioles move to opposite sides of the cell; Spindle fibers begin to form.
What happens in mitosis metaphase? The spindle moves to the center of the cell and chromosome pairs align along
the spindle.
What happens in mitosis anaphase? -Spindle fibers pull the sister chromatids apart toward the poles.
What happens in mitosis telophase? the two cells begin to pull apart and nucleus is formed and cell elongates
What is cytokenesis and when does it occur? The literal splitting of the cells and it happens at the end of mitosis
What is meiosis used for? to make gametes (sperms and eggs)
How many divisions of Meiosis? 2 divisions
In meiosis, diploid nucleus will form 4 haploid cells
What happens in Meiosis prophase 1? Two homologous chromosomes will pair forming 4 sister chromatids
Why don't archaea cause disease in humans, plants, or Because they require extreme conditions to live in
animals? Extremophiles
Largest group of archaea that produce methane methanogens
Mycoplasma lack cell wall
Mycoplasama are gram negative and smallest free living cells
Clostridium produces endospores
Bacillus produces endospores and spores
Listeria contaminates dairy products and products in fridge
Lactobacillus produces yogurt, buttermilk, pickles
probiotic (it's good)
Streptococcus cause strep throat & scarlet fevers
Selenomonas causes dental plaque
Epulopiscium causes severe diarrhea
What does Pseudomonas cause? UTI, eary & lung infection
Where can we find Pseudomonas? In the water
High G+C Gram Positive Bacteria have more than 50% guanine and cytosine nucleotides in their DNA
What are some bacterias that are high G+C Gram Corynebacterium
positive bacterias? Mycobacterium
Actinomycetes
Mycobacterium causes tuberculosis
Mycobacterium is resistant to gram staining because? it has mycolic acid in it's cell wall that causes it to grow slowly
Streptococcus causes strep throat
, MICRO 290 Midterm Recap | Microbiology | Complete Exam Review Questions & Verified Answers
These are multi-drug resistant Streptococcus & Staphylococcus
Staphylococcus is found on Human skin
What is the most common sexually transmitted bacteria Chlamydia
in the US
What is the difference between haploid and diploid Haploid: one set of chromosomes
Diploid: two sets of chromosomes
Nuclear division happens in Eukaryotes
Two types of reproduction in eukaryotes Mitosis and Meiosis
What is mitosis used for? growth, repair, asexual reproduction
What are the 4 phases of mitosis prophase, metaphase, anaphase, telophase
What happens in mitosis prophase? Centrioles move to opposite sides of the cell; Spindle fibers begin to form.
What happens in mitosis metaphase? The spindle moves to the center of the cell and chromosome pairs align along
the spindle.
What happens in mitosis anaphase? -Spindle fibers pull the sister chromatids apart toward the poles.
What happens in mitosis telophase? the two cells begin to pull apart and nucleus is formed and cell elongates
What is cytokenesis and when does it occur? The literal splitting of the cells and it happens at the end of mitosis
What is meiosis used for? to make gametes (sperms and eggs)
How many divisions of Meiosis? 2 divisions
In meiosis, diploid nucleus will form 4 haploid cells
What happens in Meiosis prophase 1? Two homologous chromosomes will pair forming 4 sister chromatids
