Study Guide for Exam 3
T cell activation and effector function
In the instance of a skin wound, dendritic cells in the skin, known as _ cells, take up antigen locally and
migrate to a nearby lymph node. There they settle in the _ and differentiate into ma
Study Guide for Exam II (Lectures 5-9)
Both T and B cell receptors are composed of heavy chains and light chains. B cell receptors have two antigen binding
sites (An antigen is any substance that stimulates an immune response in the body), but each B cell
Shockera Watson 20151646
Metabolic pathways of energy and the integration of metabolism
Up to now we have been considering energy production. Through the oxidation of organic
molecules, organisms produce energy by aerobic respiration, anaerobic respiratio
Prokaryotic Cell Structure Function 2
Peptidoglycan is a component of both gram
negative and Gram positive cell walls
Note: The Wheelis textbook uses the term murein when discussing the bacterial cell wall.
Murein is an archaic word for peptidoglycan. T
Welcome to this lesson on Peptidoglycan Structure.
Peptidoglycan is a polymer comprised of individual glycan strands cross-linked by peptides. The
repeating subunit of peptidoglycan is two sugars, N-acety
Intracellular Prokaryotic Structures and functions part 2
Welcome to this second lesson on Intracellular Prokaryotic Structures and Functions.
Prokaryotic inclusion structures are involved in metabolite storage or motility. All
cell wall structure is function
Overuse of beta lactam antibiotic
compounds has selected for
populations of bacteria:
1. With no peptidoglycan in their
Prokaryotic Cell Structure - Function 4
Intracellular inclusions enhance
prokaryotic metabolite storage or motility
Prokaryotic Intracellular Structures
and Functions 2
Repeating structure of PHB
Prokaryote Cell Membranes
Welcome to this lesson on Prokaryote Cell Membranes
Here is a depiction of the outer membrane of the Gram-negative envelope in cross section. The
Gram-negative outer membrane is highly asymmetric and im
Whats the Disease? Whats the Microbe?
Delicious, home-churned ice cream, made from
scratch, is consumed by dozens of people attending
a family reunion in Australia. After incubation
periods ranging from 4 to 76 hours, all who
fKinsey Quiz 1- 82
1.Transcription of a bacterial operon leads to a single mRNA which contains distinct
translational control sequences for ribosome binding at each gene. (T- guess)
2. Antisense RNA regulation functions at the level of translation.
Chemoheterotrophs fix carbon dioxide for use in biosynthesis.
False are unable to fix carbon to form their own organic compounds.
Fermentation produces end products at the same average redox level as the substrates.
True lecture 10
EXAM 3 MATERIAL
Exposure to - and survival from - many infectious diseases provides life-long protection from
subsequent exposures. The correct answer is 'True'.
Retroviruses convert their RNA genome into a DNA template using a replicase enzyme
MB 351 Exam 3 Essay Questions
1. Identify and explain each step of the virus replication cycle.
a. Viral attachment viral protein interacts with the complementary protein/carbohydrate receptor on
surface of host cell; occur through random collisions
EXAM 2 ESSAY QUESTIONS Microbiology
1. Describe the mechanism of horizontal gene transfer during conjugation. Compare and contrast it with the
mechanism used during transformation and transduction.
a. HGT is acquisition of new genes from other cells/bacte
When you take Exam 1 you will receive two questions- one question from Pool X and
one from Pool Y. Each of these two Free Response questions will be randomly selected
for each student. These questions amount to 20% of your Exam 1 grade. It is
Case Study 1: Life Beneath the Ice
1) Using epifluorescence microscopy, the scientists examined the Lake Whillans water and
sediment samples. Figure 3.
a) What is epifluorescence microscopy? For what purpose was this technique used for
in the scientific p
Isolation of a novel strain of Bacillus from soil
The purpose of this class, Microbial Diversity, was to
explore the diverse nature of the prokaryotic world
via experiments designed to screen for isolates of a
particular specification. One
What is a Prokaryote?
3.5 Billion years
Explain how prokaryotic cells determine the physical
ranges of life on Earth.
Explain why multicellular plants and animals would not
survive in a world without
A Brief History of Time
A Timeline of Life on Earth
Explain the evidence for the age of the universe.
Explain the eviden
Es,mate the length of one Escherichia coli in this phase
contrast microscopy image.
Scale is 10m
Compare the sizes of microorganisms and be able to interconvert
the metric units of length.
Explain the dierence between
What is a microbe? Script
Welcome to this lesson on microbes.
Microbes are not stuffed animals. Microbes are, by definition, living unicellular or single-celled organisms that cant be seen by the naked eye.
There are two fundamenta
A Brief History of Time (and microbes) script
Welcome to this lesson on A Brief History of Time (and microbes).
In the beginning was the Big Bang. The Big Bang created microwave radiation detected from all
directions of the known universe.
Introduction to Microbiology
Microbes by definition
cannot be seen by the naked eye*
Microbes include all life forms
other than plants and animals.
Most microbes are unicellular; if multicellular,
they lack highly differentiated tissues.
What is a Prokaryote? Script
Welcome to this lesson on Prokaryote cells.
Prokaryotic cells inhabit a diverse range of habitats. Prokaryotic cells have been found thriving at
temperatures ranging from 10C to >121C, pH measurements ranging from a pH of
What is a Microbe?
Phylogenetic tree of life on earth.
Define the term microbe. What kinds of life are not microbial?
Compare and contrast Prokaryoti