TLS Online TPP Program

#Question id: 101


You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?

#Botany
  1. Test both for solubility in water. Sucrose is very soluble; lactose is only minimally soluble.

  2. Test for the ability to reduce Ag+. Only lactose will react.

  3. Dissolve each in water and record the pH. Lactose is far more acidic than sucrose.

  4. React each with bromine (Br2) water. Only sucrose will react.

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TLS Online TPP Program

#Question id: 99

#Life Sciences

Which of the following are the main reasons that glycoproteins are so diverse when compared to other proteoglycans are

A) they may contain different sugars in different combinations and chain lengths.

B) β or a-glycosidic linkages may join various carbon atoms in the sugars.

C) they are found in both bacterial, plant and animal cells.

TLS Online TPP Program

#Question id: 99

#Applied Microbiology

Which of the following are the main reasons that glycoproteins are so diverse when compared to other proteoglycans are

A) they may contain different sugars in different combinations and chain lengths.

B) β or a-glycosidic linkages may join various carbon atoms in the sugars.

C) they are found in both bacterial, plant and animal cells.

TLS Online TPP Program

#Question id: 99

#Bio-Informatics

Which of the following are the main reasons that glycoproteins are so diverse when compared to other proteoglycans are

A) they may contain different sugars in different combinations and chain lengths.

B) β or a-glycosidic linkages may join various carbon atoms in the sugars.

C) they are found in both bacterial, plant and animal cells.

TLS Online TPP Program

#Question id: 100

#Biochemistry

Which of the following contain NeuNAc residues and sulfated sugars, and their negative charges contribute to the viscosity of mucins.

TLS Online TPP Program

#Question id: 100

#Botany

Which of the following contain NeuNAc residues and sulfated sugars, and their negative charges contribute to the viscosity of mucins.

TLS Online TPP Program

#Question id: 100

#Zoology

Which of the following contain NeuNAc residues and sulfated sugars, and their negative charges contribute to the viscosity of mucins.