A covalent bond involves the sharing of Correct Answers
electrons.
A coverslip is used after creating a heat fixed emulsion. Correct
Answers FALSE
A microbe that is pathogenic is: Correct Answers able to cause
disease
A microorganism's cardinal temperatures are determined by
(select all that apply):
the temperature ranges of its enyzymes
the temperatures ranges of the habitats it evolved in
the availability of nutrients
the body temperature it maintains Correct Answers NOT ALL
4 (0 points)
NOT .25 points
the temperature ranges of its enyzymes
the body temperature it maintains
the temperatures ranges of the habitats it evolved in
NOT (0 points)
the body temperature it maintains
the temperatures ranges of the habitats it evolved in
A name for a parasite that lives inside another cell is: Correct
Answers an endosymbiont
,A phospholipid bilayer consists of two layers of phospholipids
arranged so that: Correct Answers the hydrophobic fatty acid
tails are sandwiched in the middle of two layers of hydrophilic
phosphate "heads"
A phospholipid is composed of Correct Answers one glycerol
molecule linked to one phosphate group and two fatty acids.
A prokaryotic nucleoid is made up of: Correct Answers A
single circular chromosome of double-stranded DNA
A scientist suspects that the food in an ecosystem may have
been contaminated with radioactive nitrogen over a period of
months. Which of the following substances could be examined
for radioactivity to test the hypothesis? Correct Answers the
hair produced by humans living in the ecosystem
According to the video, where do we believe the largest number
of microorganisms live on earth? Correct Answers the
subsurface (underground and deep ocean)
After creating a bacterial emulsion but before staining your cells
you must: Correct Answers heat fix the slide
Agar is used in microbiology... Correct Answers as a
solidifying agent
All atoms of the same element have the same Correct Answers
atomic number.
,Amino acids can be distinguished from one another by Correct
Answers the chemical properties of their R groups.
An atom's outermost electron shell Correct Answers
determines its chemical reactivity.
An axial filament is a feature of: Correct Answers spirochetes
only
An axial filament is found: Correct Answers just under the
outer membrane in spirochetes
An element has an atomic number of 78. The number of protons
and electrons in a neutral atom of the element are Correct
Answers 78 protons and 78 electrons.
An oil may be converted into a substance that is solid at room
temperature by Correct Answers adding hydrogens, decreasing
the number of double bonds in the molecules.
Anabolism is controlled by enzymes, while catabolism is
controlled by dehydration synthesis. Correct Answers FALSE
Anabolism: Correct Answers often uses ATP
As the diameter of the zone of inhibition increases you can
assume the chemical germicide is: Correct Answers more
effective
As the number of hydrogen ions in solution increases the pH
Correct Answers NOT increases
, At what temperature does an organism reproduce at the highest
rate? Correct Answers optimum
ATP is used in prokaryotes, but not in eukaryotic cells: Correct
Answers FALSE
Bacteria replicate via Correct Answers binary fission
body Correct Answers provides the structure of the microscope
and holds everything together
Catabolism ___________________ while anabolism
______________________. Correct Answers is exergonic;
often involves dehydration synthesis
Catabolism is to anabolism as: Correct Answers dismantling a
structure is to building it
Catabolism: Correct Answers is usually exergonic
CFU refers to ____________________, which is usually
assumed to be ______________. Correct Answers colony
forming unit; a single bacterial cell
Choose the largest of the following units:
kg
g
Mg
mg Correct Answers Mg