BIO181 Exam 2 Part 1

Question 1

1.5 / 1.5 pts

Uridine is a nucleotide in DNA.

True

False

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IncorrectQuestion 2

0 / 1.5 pts

Replication of DNA is semi-conservative.

True

False

That’s not correct

IncorrectQuestion 3

0 / 1.5 pts

The DNA polymerase that replicates the parental strand of DNA reads the parental DNA from 5’ to 3' and makes a new DNA strand from 3’ to 5’.

True

False

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Question 4

1.5 / 1.5 pts

DNA replication in eukaryotes is sped up by multiple origins of replication.

True

False

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Question 5

1.5 / 1.5 pts

Messenger RNA is double stranded.

True

False

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Question 6

1.5 / 1.5 pts

The genetic code for the conversion of mRNA codons to proteins has redundancy.

True

False

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PartialQuestion 7

4.5 / 4.5 pts

The light reactions of photosynthesis produce and and this process also results in the release of .

Answer 1:

ATP

Answer 2:

NADPH

Answer 3:

oxygen

PartialQuestion 8

3 / 3 pts

The Calvin-Benson cycle takes in and from the light reaction and also to make carbohydrates.

Answer 1:

ATP

Answer 2:

NADPH

Answer 3:

WATER AND CO2

UnansweredQuestion 9

0 / 1.5 pts

In Photosynthesis the antenna system is in the ________ membranes.

IncorrectQuestion 10

1.5 / 1.5 pts

The most abundant protein in the world is called ________.

PartialQuestion 11

3 / 3 pts

Protein synthesis changes from the language of to the language of .

Answer 1:

nucleotodes

Answer 2:

amino acids

UnansweredQuestion 12

0 / 1.5 pts

In eukaryotic cells the start codon for protein synthesis is _________.

UnansweredQuestion 13

0 / 3 pts

There are two types of protein synthesis in eukaryotic cells. These two types can be distinguished because the polyribosome is either or .

Answer 1:

(You left this blank)

Answer 2:

(You left this blank)

IncorrectQuestion 14

3 / 3 pts

Glycolysis requires the investment of two in order to obtain a gross output of four .

Answer 1:

ATP’s

Answer 2:

ATP’s

UnansweredQuestion 15

0 / 1.5 pts

The citric acid/Kreb’s cycle breaks down carbohydrates into CO2.

True

False

That’s not correct

IncorrectQuestion 16

0 / 1.5 pts

FADH2 results as one of the products of the citric acid cycle.

True

False

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Question 17

1.5 / 1.5 pts

The cell does not need ATP to survive.

True

False

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Question 18

1.5 / 1.5 pts

Specifically in a cell where does Glycolysis occur?

Cytoplasm

Mitochondrial matrix

Inner mitochondrial membrane

Glycolysis

ATP

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Question 19

1.5 / 1.5 pts

Specifically where in a cell does the citric acid/Kreb’s cycle occur?

Cytoplasm

Mitochondrial matrix

Inner mitochondrial membrane

Glycolysis

ATP

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Question 20

1.5 / 1.5 pts

Where is carbon dioxide produced?

Carbon dioxide

Mitochondrial matrix

Inner mitochondrial membrane

Oxygen

carbohydrates

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IncorrectQuestion 21

0 / 1.5 pts

Bone marrow is a site where mature immune cells are found.

True

False

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IncorrectQuestion 22

0 / 1.5 pts

There are times when the spleen can be considered to be the primary lymph node.

True

False

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Question 23

1.5 / 1.5 pts

Lymph nodes are a place where cells of the immune system accumulate and share information.

True

False

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Question 24

1.5 / 1.5 pts

You should have your appendix removed whenever possible.

True

False

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Question 25

1.5 / 1.5 pts

Red blood cells are a part of the immune system

True

False

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Question 26

1.5 / 1.5 pts

Red blood cells originate from the bone marrow.

True

False

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Question 27

1.5 / 1.5 pts

B and T cells are called lymphocytes

True

False

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IncorrectQuestion 28

0 / 1.5 pts

In 1 mL of blood, there are 1.5 million white blood cells

True

False

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IncorrectQuestion 29

0 / 1.5 pts

Natural killer cells are part of the specific immune system.

True

False

That’s not correct

Question 30

1.5 / 1.5 pts

Having a fever of 100 degrees F can help you fight off infections.

True

False

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Question 31

1.5 / 1.5 pts

Mast cells release histamine.

True

False

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Question 32

1.5 / 1.5 pts

The humoral immune system involves cells in the immune system.

True

False

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Question 33

1.5 / 1.5 pts

Any cell can present an antigen on a class I major histocompatibility complex (MHC) protein.

True

False

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Question 34

1.5 / 1.5 pts

Any cell can present an antigen on a class II major histocompatibility complex (MHC) protein.

True

False

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Question 35

1.5 / 1.5 pts

Memory cells “remember” the antigen and make a faster and greater response the next time the antigen is encountered.

True

False

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Question 36

1.5 / 1.5 pts

A bacterium coated by antibodies is a signal that a macrophage should endocytose (eat) it

True

False

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Question 37

1.5 / 1.5 pts

Memory cells in your immune system will all die after 3 months.

True

False

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IncorrectQuestion 38

0 / 1.5 pts

A bacterium your body coated by antibodies is protected from the immune system.

True

False

That’s not correct

IncorrectQuestion 39

0 / 1.5 pts

Inflammation is caused by an increased blood supply due to _______ released by some cells of the immune system.

Question 40

1.5 / 1.5 pts

Epithelial cells serve as a barrier to prevent non-specific movement of chemicals from one side of the epithelium to the other side.

True

False

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Question 41

3 / 3 pts

The molecular seal that serves as the barrier is called a . While this is a good barrier, such barriers are not very strong and must be underlined by .

Answer 1:

tight junctions

Answer 2:

adhering junctions

IncorrectQuestion 42

0 / 3 pts

The digestive track begins with the and the first enzyme added is .

Answer 1:

small intestine

Answer 2:

(You left this blank)

UnansweredQuestion 43

0 / 5 pts

How does the lymph fluid return from the legs to the circulatory system?

Your Answer:

Question 44

4 / 5 pts

Write a few sentences to distinguish between digestion and absorption.

Your Answer:

Digestion is the break the down of something and absorption is taking in something. For example the foods high in protein our body absorbs the nutrients from the that.

Question 45

4 / 5 pts

What is bile made from? And how does oatmeal reduce cholesterol levels?

Your Answer:

Bile is made from cholesterol and it binds with fiber. Oatmeal reduces cholesterol by it being defecated rather than recycled.

Question 46

2 / 5 pts

When glucose is taken in by the digestive track and enters your blood, cells are triggered to take in the glucose by what mechanism?

Your Answer:

insulin

Question 47

0 / 0 pts

Using your pen/pencil and paper, draw the sugar in DNA and label the carbons as discussed in the lecture. Then circle the carbon that is different in RNA.

________________________________________

This question requires a hand-drawn response. When you have finished the drawing, hold the drawing up to your web camera for verification. Then you will scan the image of the drawing (acquired via smartphone, camera or scanner) and load the image into your computer as a file. Then go to the “Exam 2 Part 2” link and upload the file within 45 minutes.

This question is worth 5 points, and credit will be given under Exam 2 Part 2 in your grades area.

Click “Done” below for your answer once you’ve held up the drawing to the camera.

Done, and I now have 45 mins to upload the drawing file to Exam 1 Part 2

Click above when finished

Quiz Score: 61 out of 95