Of the following substances, the establishment of tolerance is more difficult with:
A) proteins
B) haptenic groups
C) polysaccharides
D) particulate antigens
E) synthetic polypeptides
Tolerance means 'the ability to withstand stress'.
Among the given, establishment of tolerance is most difficult in particulate antigens. Antigens are small molecules in our body which are harmful. Antibodies protect our body against antigens. Antigens are generally not tolerant towards antibodies. As and when they encounter antibodies, an agglutination reacts occurs; resulting in destruction of the antigen.
Experiments have shown that establishment of tolerance generally fails in small antigens. So, among the given options 'D' is the correct answer.
Of the following substances, the establishment of tolerance is more difficult with: A) proteins B) haptenic...
Digestive enzymes are substances that break down complex nutrients such as proteins into A. glucose B. fatty acids. C. triglycerides. D. simpler amino acids.
Characteristics of disulfide bonds in proteins include all of the following EXCEPT Question options: A. they are an example of a post-translational modification. B. they are common in proteins secreted from cells. C. they may cross-link two polypeptides in a globular protein. D. they may form with the assistance of a chaperone. E. they may stabilize the alpha-helix conformation.
Antibodies react to antigens in all of the following ways except, A) Activate complement B) Cause the spleen to sequester iron C) Combine with antigens causing them to clump D) Form insoluble substances by combining with antigens E) Stimulate inflammation
Which of the following functional groups is not a common linkage between lipids and proteins that can tether proteins to the surface of a cell membrane? a. amide b. thioamide c. alkene d. none e. sulfide
1) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If energy increases when a solution forms d) Both a and b e) Both a and c 2) What is the value for the van't Hoff factor (1) for Cu(NO3)2? a) i=1 b) i=2 c) i=3 d) i=4 e) i>4 3) For which of...
Answer the following (approximate numerical values) regarding
the temperature-composition diagram of substances A and B.
a. What are the phases present in A and which
is more abundant?
b. How many phases and what are the phases present in
B?
c. What is the composition of the whole mixture (in
XA) at point C?
d. How many phases are present, and what are the substances
present in D?
e. What is the composition (in XA) of the phases
present in...
1) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If energy increases when a solution forms d) Both a and b e) Both a and c
1) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If energy increases when a solution forms d) Both a and b e) Both a and c
2) Which of the following makes formation of a solution from two pure chemical substances more likely to occur? a) If randomness increases when a solution forms b) If energy decreases when a solution forms c) If energy increases when a solution forms d) Both a and b e) Both a and c
Which of the following molecules can exhibit enzymatic activity? (a) amino acids and proteins (b) proteins and RNA (c) RNA and aminoacids (d) DNA and proteins (e) Lipids and proteins