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Chem 210 Module 5 Exam, Exams of Biochemistry

Alverno CollegeBiochemistry

Portage Learning Chemistry 210 Module 5 Exam

Typology: Exams

2022/2023

Available from 08/21/2023

NursingEliza
NursingEliza 🇺🇸

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Module 5 Exam - Requires Respondus LockDown
Browser + Webcam
Due No due date Points 100 Questions 30 Time Limit 120 Minutes
Requires Respondus LockDown Browser
Attempt History
Attempt Time Score
LATEST Attempt 1 31 minutes 91 out of 100
Score for this quiz: 91 out of 100
Submitted Jun 14 at 3:29pm
This attempt took 31 minutes.
3 / 3 pts
Question 1
Glycerol contains how many carbon atoms?
3
Correct!
Correct!
4
5
15
None of the above
3 / 3 pts
Question 2
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Partial preview of the text

Download Chem 210 Module 5 Exam and more Exams Biochemistry in PDF only on Docsity!

Module 5 Exam - Requires Respondus LockDown

Browser + Webcam

Due No due date Points 100 Questions 30 Time Limit 120 Minutes

Requires Respondus LockDown Browser

Attempt History

Attempt Time Score

LATEST Attempt 1 31 minutes 91 out of 100

Score for this quiz: 91 out of 100

Submitted Jun 14 at 3:29pm

This attempt took 31 minutes.

Question 1^3 / 3^ pts

Glycerol contains how many carbon atoms?

Correct!Correct! 3 4 5 15 None of the above

Question 2^3 / 3^ pts

Which of the following are derived from or made from fatty acids?

Correct!Correct! Sphingolipids

Carotenoids Cholesterol Both A and B Both A and C

Question 3^3 / 3^ pts

Triacylglycerols are made from:

A glycerol backbone Three fatty acids Amide linkages between fatty acids Correct!Correct! A glycerol backbone and three fatty acids

All of the above

Question 4^0 / 3^ pts

cholesterol Correct!Correct! None of the above

Question 6^3 / 3^ pts

A particular lipid is a liquid at room temperature, so it is called a(n)

________.

Correct!Correct! Oil

Fat Lipid Membrane Sphingolipid

Question 7^3 / 3^ pts

Identify the lipid class given by the structural formula:

Sphingolipid Correct!Correct! Triacylglycerol

Phosphoglyceride Cholesterol None of these

Question 8^3 / 3^ pts

The following protein class is loosely associated with cellular membranes.

Correct!Correct! Peripheral protein

Transmembrane protein Integral protein Channel protein Transport protein

Question 9^3 / 3^ pts

Isoprene units are used to make _____________.

A. Cholesterol B. Carotenoid molecules C. Vitamin K

A) 20:1 ( )

B) 20:1( )

C) 20:1( )

D) 20:2( )

E) 20:1( )

6 13 14 6 17 ou Answeredou Answered A B orrect Answerorrect Answer C

D E

Question 12^3 / 3^ pts

Which of the following is used as the backbone molecule in the formation

of storage fats?

Glycogen Correct!Correct! Glycerol Sphingolipid Glucose Phosphoglycerol

Question 13^3 / 3^ pts

Which types of membrane lipids determine the blood type of humans?

Triacylglycerols Phosphoglycerides Cholesterol Fatty acids Correct!Correct! Sphingolipids

Question 14^3 / 3^ pts

Sphingolipids are found in high concentrations in the membranes of

__________.

organelles Correct!Correct! myelin sheaths

all cells heart cells Vitamin K lipids

Question 15^3 / 3^ pts

Go all the way through the membrane and are firmly attached to the membrane

Are firmly attached to the membrane Are lipids that can be either on the top of the cell or bottom of the cell Correct!Correct! Are associated with the inside or outside surface of the membrane

None of the above

Question 18^3 / 3^ pts

Which statement best describes a general feature of membranes?

The membrane breaks easily Individual lipid molecules stay in one place The polar heads face inward The interior of the lipid bilayer is very polar Correct!Correct! The membrane is fluid

Question 19^0 / 3^ pts

The following cartoon drawing represents which lipid type?

orrect Answerorrect Answer Sphingolipid

Triacylglycerol Cholesterol Fatty acid ou Answeredou Answered None of these

Question 20^3 / 3^ pts

Which vitamin is critical for blood coagulation?

Vitamin A Vitamin B Vitamin C Vitamin D Correct!Correct! Vitamin K

Question 21^3 / 3^ pts

What molecule is not found in membrane bilayers?

Sphingolipid

Triacylglycerol None of the above

Question 24^3 / 3^ pts

In triacylglycerols, fatty acids are attached to glycerol via a/an______

linkage.

Correct!Correct! -O-CO-

-NH- -O-NH- -COO- -C=C-

Question 25^3 / 3^ pts

A lipid is __________.

A fat Correct!Correct! A molecule that dissolves in a non-polar solvent

Is made from isoprene units An oil made up of carbon and oxygens Is water soluble

Question 26^5 / 5^ pts

Your Answer:

(Short answer) What is the effect of a double bond on the structure of fatty

acids?

The effect of a double bond on the structure of fatty acids is that the

bondage causes breakage when they're engaged in a solution. This

causes the structure to kink or break, resulting in FA having a much more

fluid like movement.

Most double bonds cause the fatty acids to bend or kink

about in solution. This bending reduces the packing structure

of fatty acids making them more liquid-like.

Question 27^5 / 5^ pts

Your Answer:

(short answer) Where in the body are membranes found?

Membranes are found surrounding every cell and (almost every) organelle

in the cell in the body.

In the cell. The cell, itself, and the organelles have

membranes.

Question 28^5 / 5^ pts

Triacylglycerols are nonpolar molecules that can be stored as

energy. They are a non-polar molecule (hydrophobic), so they

do not interact with water. Phosphoglycerides, on the other

hand, have both polar and nonpolar regions that permit them

to interact with both polar and nonpolar environments making

them perfect for membrane bilayers.

Question 30^5 / 5^ pts

Your Answer:

(short answer) Which types of molecules are most likely to be present in

membranes?

The following molecules are most likely to be present in membranes:

proteins, cholesterol, sphingolipids, and phosphoglycerides. These

molecules make up the structure of membranes' bilayers and are what's

known as the fluid mosaic model.

Phosphoglycerides, sphingolipids, cholesterol, and proteins

are all found in the membrane. These molecules are all

loosely associated with each other as described by the fluid

mosaic model of the cellular membrane. They form a

membrane bilayer.

Quiz Score: 91 out of 100