Upgrade to remove ads
Microbio Exam 1
Terms in this set (54)
Organisms that use reduced, preformed organic molecules as carbon sources are
Organisms that obtain electrons from the oxidation of inorganic compounds are
Organisms that obtain their energy from oxidation of organic or inorganic compounds are called
Organisms that obtain energy from light, carbon from CO2 and electron from reduced inorganic molecules are called
Which of the following is not a major class of growth factors?
Which of the following process can be used to bring nutrients inside the cell against a concentration gradient?
The movement of molecule across a membrane from an area of high concentration to an area of low concentration with the help of a carrier molecule embedded in the membrane is known as
Nutrients can be concentrated during
Media containing some ingredients of unknown chemical composition are called
This statement, "in the laboratory, a sterile inoculating loop is moved across the agar surface in a culture dish, thinning a sample and isolating individual colonies' describes which of the following?
Membrane delimited intracellular structures that perform specific functions in cells are called
Microdomains in eukaryotic plasma membranes can participate in
(all of the above)
- cell movement
- cell division
- signal transduction
Protein filaments with a diameter of about 10 nm that are major components of the cytoskeleton are called
The process by which a cell imports solid particles by enclosing them in vehicles pinched off from the plasma membrane is called
A lysosome containing undigested material is called
a residual body
Which of the following parts of the Golgi complex receives materials from the ER?
The nucleolar organizer is a part of a specific chromosome that directs the synthesis of
ribosomal RNA (rRNA)
Which of the following is a function of the mitochondrion?
(all of the choices)
- tricarboxylic acid cycle enzyme reactions
- electron transport
- ATP synthesis
The enzymes and electron carriers involved in electron transport and oxidative phosphorylation are located in the ____ membrane of the mitochrondrion.
Which of the following is useful in distinguishing between prokaryotic and eukaryotic cells?
the presence of membrane-delimited organelles within the cytoplasm
RER-bound ribosomes are mainly responsible for synthesis of ______ proteins.
______ is called the powerhouse of the cell.
Eukaryotic flagella and cilia have a ______ pattern of distribution of microtubules.
The size of eukaryotic ribosome is _____
_____ is a unicellular fungus
budding from mother cell
maintenance of cell structure and motility
degradation of wrongly folded proteins
cis and trans face
mitotic and meiotic spindle formation
Most bacterial cells and archaeal cells divide by
The actin-like protein that seems to be involved in determining cell shape is
The limitation of microbial growth rate at high nutrient levels is
the saturation of the transport proteins for nutrient uptake
Cells may enter stationary phase because of
(all of the choices)
- depletion of an essential nutrient
- a lack of available oxygen
- the accumulation of toxic waste products
Microorganisms are most nearly uniform in terms of chemical and physiological properties during _____ phase.
Which of these methods can be used to determine the number of viable organisms in a sample?
measuring colony forming units per ml
Which of the following is considered a cardinal growth temperature?
(all of the above)
- minimum temp
- maximum temp
- optimum temp
Organisms that grown well at 0 deg. C and have optimum growth temperatures of 15 deg. C or lower are called
Organisms that do not require oxygen for growth but grow better in its presence are called
Cell to cell communication is also known as ______
_____ grow equally well whether oxygen is present or not
Cell mas can be measured using _____
Doubling of cell population during a specific time length of time is called ______
Penicillin binding proteins (PBPs) are associated with ______
Which of the following inhibits bacterial growth but does not kill bacteria
Sterilization involves _____ all viable microorganisms.
killing OR removing
The reduction of the microbial population to levels that are considered safe by public health standards is called
Which of the following represents the best definition of microbial death?
The organism will not grow on a medium that normally supports its growth
Which will require a longer time to kill?
a larger population of organisms
Which of the following is not a method of heat sterilization?
Which of the following lacks sufficient penetrating power for bulk sterilization?
UV radiation at 260 nm
Which of these is an agent that is used to sterilize the plastic tubing of heart-lung machines?
Iodine can be complexed with an organic carrier to form water-soluble, stable complexes called _____, which release iodine slowly and eliminate skin burns and irritation associated with iodine use.
Disinfectants are generally regulated by the
Environmental Protection Agency
Sets found in the same folder
HW CH 4-6
Sets with similar terms
Bio Exam 2
Group 2 - Chapter 04: Section 4.5-4.12 - Functiona…
Anatomy & Physiology Chapter 3
Biology Chapter 6-8 quiz
Other sets by this creator
HESI - Grammer