QUESTION 46

1. Risk factors for atherosclerosis include factors that can raise the levels of blood cholesterol, such as: (keep in mind some good habits can help lessen the impact of bad habits)

   	A.	maintaining homeostatic blood pressure
   	B.	regular exercise and a low-fat diet
   	C.	sedentary lifestyle, low-fat diet
   	D.	dieting and REM sleep
   	E.	obesity, smoking, and a sedentary life style

1.5 points   

QUESTION 47

1. The Electron Transport Chain (ETC) is the last step in cellular respiration, what is the final number of ATP produced in this step?

   	A.	2
   	B.	5
   	C.	32
   	D.	3
   	E.	1

1.5 points   

QUESTION 48

1. The Krebs Cycle (Citric Acid Cycle) is the second step in cellular respiration, what is the final number of ATP produced in this step?

   	A.	1
   	B.	3
   	C.	32
   	D.	5
   	E.	2

1.5 points   

QUESTION 49

1. The SA node (pacemaker of the heart) is located

   	A.	right ventricle
   	B.	right atrium
   	C.	left atrium
   	D.	left ventricle

1.5 points   

QUESTION 50

1. The branch of science that studies living organisms and their life processes is

   	A.	physics
   	B.	chemistry
   	C.	biology
   	D.	geology

1.5 points   

QUESTION 51

1. The central nervous system is composed of which of the following?

   	A.	somatic division and autonomic division
   	B.	somatic division and motor division
   	C.	sensory division and motor division
   	D.	autonomic nervous system and brain
   	E.	brain and spinal cord

Discuss the various strategies for developing cancer vaccines. Name some examples of cancer vaccines and how they can help the patients fight cancer.

What are two (2) advantages of breathing air, compared with obtaining Dissolved Oxygen from water? (choose two answers)

The reason animals need a continuous supply of Oxygen is to

In Exhalation, ______________.

The process of Inhalation in the Mammalian Respiratory System is by increasing the space around the outside of the lung which decreases the pressure on the outside of the lung and allows air to come into the lung under Negative Air Pressure.

Question 1:
Why a pure colony isolation on the plate is necessary?
.

Question 2:
Briefly define the use of the following media in combination with primary culture media for
isolation of organisms from clinical specimens. Support your answer by quoting examples for
each category: (1.5 x 4 = 6 Marks)
1. An enrichment broth
2. Nutritional agar
3. Selective agar
4. Differential media
.

Question 3:
What are the limitations associated with placing too much organism on the slide prior to staining
and placing too little organism on the slide prior to staining?

.
Question 4:
Define the term antibody titer. What is significance of antibody titer determination in "paired
sera" while addressing the etiology of an infectious disease?
.

Question 5:
While performing antimicrobial sensitivity testing by Kirby Baeur Disc diffusion method, If you
mistakenly adjusted the organism inoculum suspension to be equal to a number 1 McFarland
turbidity standard, would the results be falsely resistant, sensitive, or not altered. Give reason.
(1.5 marks)

.

Question 6:
Small colonies are observed at the inner edge of the zone of inhibition around the oxacillin disk
when S. aureus is tested. The outer zone size corresponds to an interpretation of susceptible, and
the small colonies are growing in the resistant range. How will you interpret the results—S
(sensitive), I (intermediate), or R (resistant)? Give reason. (1.5 Marks)

We performed a final experiment where we determined the tightness of DNA packaging for this gene in wild-type toe cells, and in toe cells in which the Talon enhancer had been mutated as described for constructs g-k. In this experiment we isolated chromatin and determined if an enzyme cuts in the gene very well or very poorly, depending on how tightly packed the DNA is at the site of cutting.

c. Suggest why the ability of an enzyme to cut chromatin at a specific location might tell us about chromatin structure; specifically packing of DNA.

In this experiment, poor cutting gives a 7kb fragment of DNA, while fragments of 4kb and 3kb indicate good cutting of the DNA. The results are indicated below:

Construct                   DNA fragments observed    Chromatin structure

                                                                                    (tight, loose or intermediate)

g                                  4kb, 3kb

h and i                         7kb, 4kb, 3kb

j                                   7kb     

k                                  4kb, 3kb

d. Complete the table above to indicate the chromatin structure implied for each construct.

A Morel is a type of fungus found in the Phylum __________.

Fungi are different from plants in that they (choose two answers) ________ and ________.

A Bracket Fungi is a type of fungus found in the Phylum _________.

About ___% of all plants have mutualistic, symbiotic relationships with Glomeromycota.

A Mushroom is the vegetative reproductive Structure of Fungi in the Phylum _____.

Fungi are classified into phyla based upon which characteristic?

Fungi that form a distinct type of Mycorrhizae in which Hyphae that invade plant roots branch into tree-like structures known as Arbuscules or Root Nodules are found in the Phylum ________..

QUESTION 1

1. Every  eukaryotic cell

   	A.	contains a prokaryotic cell
   	B.	has a cell wall composed of cellulose that serves as the outer boundary of the cell
   	C.	possesses flagella and cilia, unlike prokaryotes
   	D.	has its genetic material concentrated in a membrane-enclosed nucleus
   	E.	contains  all of its genetic material in mitochondria

1.5 points   

QUESTION 2

1. A codon is

   	A.	a type of DNA repair enzyme
   	B.	a sequence of nucleotides that makes up a whole gene
   	C.	the part of the ribosome to which mRNA attaches
   	D.	a form of birth control for male or female
   	E.	a sequence of three nitrogenous bases on mRNA that corresponds to an amino acid

1.5 points   

QUESTION 3

1. A disorder of the nervous system in which the individual has an inflammation of the layers that surround the brain is called:

   	A.	meningitis
   	B.	lactose intolerance
   	C.	overnutrition
   	D.	Encephalitis
   	E.	shingles

1.5 points   

QUESTION 4

1. A molecule used by the body in a Specific Response is an immuniglobulin (I _gG), it is a class of  molecules known as

   	A.	NK cells
   	B.	CD 8 cells
   	C.	CD4 cells
   	D.	antibodies

1.5 points   

QUESTION 5

1. A neuron at rest has a charge difference across its cell membrane, with the interior of the cell negative relative to the exterior. This difference in charge across the plasma membrane is referred to as ________ membrane potential

   	A.	graded
   	B.	action
   	C.	depolarization
   	D.	refractory
   	E.	resting

Week 1 Assignment

Complete this two page assignment by the end of week 1! Download and open the Word document below....fill in the blank and highlight the answer to the questions or fill in the blank. Resubmit here when you're finished by adding your completed assignment as a file!

BIO 212 Assignment 1

1. Fill in the Blank: Use the table on pg. 848-853 in your textbook to help you fill in the blank.

1. Which of the following drug classifications produces a calming effect?
   1. Sedative
   2. Hypnotic
   3. Tranquilizer
   4. All of the above

2. Mr. Adkins is a diabetic who takes insulin. What medicinal method describes how insulin is used?
   1. Diagnostic
   2. Replacement
   3. Curative
   4. Therapeutic

3. List 5 different sources of drugs.
   1. _________________

2. _________________

3. _________________

4. _________________

5. _________________

Can you Please Solve this ASAP

4. Answer the following questions about photoinhibition and the xanthophyll cycle:
a) What is photoinhibition? How are reactive oxygen species (ROS) involved in photoinhibition?
b) How can photoinhibition “protect” the photosynthetic apparatus from further damage?
c) How does the xanthophyll cycle operate? How do xanthophylls contribute to the defense against excess light?

Can you Please solve this ASAP

How do angiosperms seal off wounded sieve tube elements to prevent bleeding? Describe the short-term and long-term mechanisms?

Sakar Cell bio Cells control their own cycle of growth & division very tightly. Please explain why cell cycle regulators are often involved in the development of neoplasms (cancers). Include examples of processes that must be affected in order to have uncontrolled cell growth. Please do not hand write responses. Please do not copy and paste from google. Please do not upload a handwritten cursive response. Type the text only!