quiz17 bio molecules

Bio molecules Quiz-17

Dear Readers,

NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1.  Identify wheather the given statements are true or false I. A protozoan contains thousand of organic compounds II. Concentration of biomolecules in an organism is not fixed

•   I-True; II-True
•  I-False; II-False
•   I-True; II-False
•   I-False; II-True

Solution
(c) Statement II is false. Amount of biomolecules in an organisms is fixed

Q2. How many of the twenty two amino acids are essential for children?

•   6
•   8
•   10
•   7

Solution
(c) In children, among twenty two amino acids, a total of ten amino acids are essential amino acids . leucine, isoleucine, valine, tryptophan, phenylalanine, lysine, methionine and three additional as threonine, arginine, histidine.

Q3.   If all the peptide bonds of protein are broken, then the remaining part is

•   Amide
•   Oligosaccharide
•   Polypeptide
•   Amino acid

Solution
(d) Protein is the polymer of amino acids joined together by peptide bonds so, if all peptide bonds of protein are broken, then the remaining part will be amino acid.

Q4.  Which of the following is the simplest amino acid?

•   Tyrosine
•   Asparagine
•   Glycine
•   Alanine

Solution
(c) Among these, glycine is the simplest amino acid.

Q5. The sum total composition of acid soluble and acid insoluble fraction pool represents the

•  Molecular
•   Dead cells
•   Gene library
•   Cellular pool

Solution
  (d) The sum total composition of acid soluble and acid insoluble fraction represents the composition of cellular pool

Q6.  Pepsin is an ……enzyme

•   Intracellular
•   Extracellular
• Both (a) and (b)
•   None of these

Solution
(b) Pepsin is an extracellular enzyme

Q7. Name the disaccharide which is the major sugar of insect haemolymph

•   Trehalose
•   Chitin
•   Cellulose
•   All of these

Solution
(a) Trehalose is the major sugar of insect haemolymph, in disaccharide form

Q8. Identify A and B bonds in the following diagrammatic representation of a portion of glycogen

•  
  
  
  
•  
  
  
  
•  
  
  
  
•  
  
  
  

Solution
glycosidic bonds, -glycosidic binds

Q9. Which enzyme catalyse the break down of hydrogen peroxide to water and oxygen?

•   A carbonic anhydrase and catalase
•   Hydrolyase and oxidase
•   Peroxidase and catalase
•   Hydrolase and oxidase

Solution
Peroxidase and catalase, catalyze the break down of hydrogen peroxide to water and oxygen

Q10.  Name the heterocyclic compounds which are known as nitrogenous bases Choose the most appropriate option

•   Adenine, guanine, uracil, cytosine and thymine
•   Adenine, guanine, uracil and thymine
•   Adenine, guanine, cytosine, uracil
• None of these 171.

Solution
(a) The heterocyclic compounds in nucleic acids are the nitrogeneous bases named adenine, guanine, uracil, cytosine and thymine

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