TLS Online TPP Program

#Question id: 344


The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. a covalent bond

  2. a hydrogen bond

  3. an ionic bond

  4. a vander Waals interaction

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TLS Online TPP Program

#Question id: 2151

#Unit 2. Cellular Organization

Which of the following statement(s) is (are) true of transmembrane proteins?

a. All contain a hydrophobic α helix.

b. Some serve as membrane attachment sites for peripheral membrane proteins.

c. Some contain more than one membrane-spanning domain.

d. All are asymmetrically oriented in the lipid bilayer.

TLS Online TPP Program

#Question id: 14947

#Unit 6. System Physiology – Plant

 Nonenzymatic proteins whose exact functions are uncertain. Such proteins may be localized in the walls of specific cell types or more widespread
cell wall protein                                                                   Tissue localization
      A) HRGP (hydroxyproline rich glycoprotein)              i) Xylem, fibers, cortex, root hairs
      B) AGP (arabinogalactan protein) ii) Primary xylem and phloem
     C) PRP (proline-rich protein)                                          iii) Cambium, vascular parenchyma
     D) GRP (glycine-rich protein)                                  iv) Varied cell-specific expression
Which of the following combinations of nonenzymatic protein with its correct location?

TLS Online TPP Program

#Question id: 34177

#Unit 3. Fundamental Processes

Which of the following combination of the statements regarding polA mutants is correct
A. fail to join their Okazaki fragments 
B. fail to removes the RNA primer
C. fail to removes the mismatch errors
D. fail to synthesis Okazaki fragments 

TLS Online TPP Program

#Question id: 2101

#Unit 2. Cellular Organization

The enzyme in cholesterol biosynthesis subject to feedback inhibition is

TLS Online TPP Program

#Question id: 211

#Unit 1. Molecules and their Interaction Relevant to Biology

The degradation of aspartic acid to oxaloacetic acid and NH4+ is catalyzed by an enzyme with ________ as its prosthetic group.