The Challenging Biology Quiz 2

21 Questions | By Dennis.tran | Updated: Mar 21, 2022 | Attempts: 704

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1.

A Carbohydrate consists of
- A.
  
  Amino acid units
- B.
  
  One or more sugar units
- C.
  
  Lipid droplets
- D.
  
  Glycerol
2.

A Protein is made up of
- A.
  
  Amino acid units
- B.
  
  One or more sugar units
- C.
  
  Lipid droplets
- D.
  
  Biruret solution
3.

Benedict's solution is commonly used to test for
- A.
  
  Proteins
- B.
  
  Simple sugars
- C.
  
  Nucleic acids
- D.
  
  Lipids
4.

Glycogen is
- A.
  
  A polysaccharide
- B.
  
  A storage carbohydrate
- C.
  
  Found in human tissues
- D.
  
  All of the above
5.

To test for starch, one would use
- A.
  
  Benedict's solution
- B.
  
  Uncoated paper
- C.
  
  Sudan IV
- D.
  
  Lugol's iodine solution
6.

Rich sources of stored energy that are dissolvable in organic solvents are
- A.
  
  Carbohydrates
- B.
  
  Proteins
- C.
  
  Glucose
- D.
  
  Lipids
7.

Polysaccharides consist of
- A.
  
  Monosaccharaides linked in chains
- B.
  
  Amino acid units
- C.
  
  Glyceride unites
- D.
  
  Condensed fatty acids
8.

Biuret reagent will indicate the presence of
- A.
  
  Peptide ponds
- B.
  
  Proteins
- C.
  
  Amino acids units linked together
- D.
  
  All of the above
9.

Let's Suppose you are worried that you've developed diabetes, a condition in which blood glucose levels rise and glucose accumulates in the urine. Recalling what you learned in class, what could you do to determine you have diabetes?
- A.
  
  Collect some urine, find some Sudan IV and perform a Sudan IV. As in class, a reddish-orange precipitate would indicate the presence of high urine glucose
- B.
  
  Collect some urine, find some Biuret Reagent Test and perform a Biuret Reagent Test. As in class, a reddish-orange precipitate would indicate the presence of high urine glucose
- C.
  
  Collect some urine, find some iodine solution Test and perform a iodine solution Test. As in class, a reddish-orange precipitate would indicate the presence of high urine glucose
- D.
  
  Collect some urine, find some benedict's solution and perform a benedict's test. As in class, a reddish-orange precipitate would indicate the presence of high urine glucose
10.

How do you verify that a soft-drink can contain diet soda rather than soda sweetened with fructose>
- A.
  
  Test the two liquids with a Sudan IV test. Soda sweetened with fructose will test positive (for a reddish-brown precipitate), while diet soda will give a negative test and the benedict's solution will remain blue in color
- B.
  
  Test the two liquids with a benedict's test. Soda sweetened with fructose will test positive (for a reddish-brown precipitate), while diet soda will give a negative test and the benedict's solution will remain blue in color
- C.
  
  Test the two liquids with a Lugol's test. Soda sweetened with fructose will test positive (for a reddish-brown precipitate), while diet soda will give a negative test and the benedict's solution will remain blue in color
- D.
  
  Test the two liquids with a Biuret regent's test. Soda sweetened with fructose will test positive (for a reddish-brown precipitate), while diet soda will give a negative test and the benedict's solution will remain blue in color
11.

To test for lipids you need to conduct a __________ Test
12.

To test for sugar, conduct the test for sugars using _______ Solution.
13.

____________ sample serves as a control to give negative results to each of the chemical test
14.

Required inorganic (non carbon containing) nutrients such as calcium and potassium
15.

A simple sugar or a larger molecule composed of multiple sugar units
16.

Necessary organic molecules that our bodies do not construct from other molecules; we require _________ in our diets in only small amounts
17.

Large organic molecules of which all cells are made
18.

Two monosaccharides are joined to form _________.Ex. Sucrose (common table sugar)Maltose(found in many seeds)Lactose (Milk sugar)
19.

More than two monosaccharides are bonded together, the resulting large carbohydrate molecule is called ___________.
20.

_________ are oily or greasy compounds insoluble in water, but dissolvable in non polar solvents such as ether or chloroform.
21.

All proteins are chains of _____________.