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Retake Objective 15 Quiz

Last updated over 4 years ago

7 questions

4

4

4

4

4

Question 5

5.

Explain what vaccines usually contain to initiate our immune response. Then explain what the Covid-19 vaccine contains that is differnt.

4

4

Question 1

1.

Which of the following occur when Sars CoV-2 enters our body? (be sure to select 4 answers here!)

It uses its proteins to enter cells of our respiratory system (lung, nose, throat)

Transcription (DNA--> RNA)

The Sars CoV-2 RNA is replicated

It uses its proteins to enter cells of our nervous system (brain and spinal cord)

Sars CoV-2 uses our cells ribosomes to build copies of its protein coat and spikes

Translation (RNA-->Protein)

The Sars CoV-2 DNA is replicated  

It uses its proteins to enter cells of our muscular system

Question 2

2.

There are three covid-19 tests we discussed in class. The RT-PCR test, the antigen test and the antibody test.
1. Which of these tests requires the drawing of blood?
2. Which of these tests is most accurate? Why is this test not used for everyone then?
3. Which of these tests detects the presence of the viral spike protein?

Question 3

3.

True story: In East Aurora, New York at an acupuncture clinic, a woman offered Covid-19 tests. When people called to make appointments, she told people (including myself) they could use the test to detect if they currently had Covid-19 and were contageious. However, people found out she was using a test that would not work for that! She got shut down and in a lot of trouble for false advertising/ false test results.

She most likely was using which test? (make sure it is also properly matched to what it tests for)

Antibody- Sars CoV-2 spike proteins

Antigen- Sars CoV-2 spike proteins

RT-PCR- Proteins our body makes to attack Sars CoV-2

Antibody- Proteins our body makes to attack Sars CoV-2

Antigen- RNA

RT-PCR- RNA 

RT-PCR- Sars CoV-2 spike proteins 

Antibody- RNA

Antigen- Proteins our body makes to attack Sars CoV-2

Question 4

4.

When a virus or bacteria enters our body, our immune system kicks into gear! Put the following events in the order which they occur to provide use with immunity if the virus enters our body in the future.

Plasma B cells produce antibodies that recognize the spike proteins and attack them when they enter the body
Macrophages phagocytize (swallow) the fat coated RNA make its spike proteint to present it for other cells to recognize as foreign
B cells differentiate into plasma B cells and memory B cells
Helper T cells produce cytokines that act as an alarm for other immune cells to gear up for action and come to the scene

Question 6

6.

The normal function of the kidneys is to filter the blood and produce urine. Urine eliminates waste products from the body. When these wastes are not removed, they build up in the body and cause a toxic condition known as ureic poisoning. Polycystic kidney disease(PKD) is an inherited disease of the kidneys. Individuals with PKD develop large cysts on their kidneys. If Band 8 in Sample F represents the mutated gene that causes PKD, which other DNA samples may be of people who will most likely develop cysts on their kidneys?

Select all that apply

B

C

E

D

A

Question 7

7.

DNA strands with the following numbers of base pairs are placed in the wells of the gel shown. 90bp, 400bp, 800bp, 1,100bp. Which of the letter marks where the 800bp strand would be found once the gel is turned on?

A

B

D

C