Biomolecules Quiz-04
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.
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Q1.
Jacob and Monod named some enzymes as allosteric, whose activity is regulated by
Solution
(a) Allosteric modulation or feedback inhibition of enzymes is influenced by end product. It was shown by Jacob and Monod (1961) through Lac operon in E.coli.
(a) Allosteric modulation or feedback inhibition of enzymes is influenced by end product. It was shown by Jacob and Monod (1961) through Lac operon in E.coli.
Q2.
Which of the following statements are correct?
Solution
(a) All statements are correct
(a) All statements are correct
Q3.
The acid soluble pool, roughly represents
Solution
(b) The acid soluble pool represents the cytoplasmic composition of cell. The macromolecules from cytoplasm and organelles becomes acid insoluble fraction. Together, they represent the entire chemical composition of living tissues or organisms
(b) The acid soluble pool represents the cytoplasmic composition of cell. The macromolecules from cytoplasm and organelles becomes acid insoluble fraction. Together, they represent the entire chemical composition of living tissues or organisms
Q4.
…… is a heteropolymer
Solution
(c) Chitin is a heteropolymer
(c) Chitin is a heteropolymer
Q5.
Richest energy compound is
Solution
(a) Creatine phosphate is a reservoir of high energy phosphate in muscle cells, as the energy released by its hydrolysis is greater than ATP. Fat contains more energy as compared to carbohydrate and protein. It is not directly used in respiration instead first broken down to intermediates common to glucose oxidation, ie., acetul Co-A, glyceraldehydes phosphate.
(a) Creatine phosphate is a reservoir of high energy phosphate in muscle cells, as the energy released by its hydrolysis is greater than ATP. Fat contains more energy as compared to carbohydrate and protein. It is not directly used in respiration instead first broken down to intermediates common to glucose oxidation, ie., acetul Co-A, glyceraldehydes phosphate.
Q6.
A in the given structure represents
Solution
(a) A is ester bond formed by condensation reactions, involving elimination of water
(a) A is ester bond formed by condensation reactions, involving elimination of water
Q7.
Catabolic and anabolic pathways are often coupled in cell. Why?
Solution
(b) Catabolic and anabolic pathways are often coupled in a cell because the free energy released from one pathway is used to drive other pathways
(b) Catabolic and anabolic pathways are often coupled in a cell because the free energy released from one pathway is used to drive other pathways
Q8.
Choose the correct graph showing, the effect of pH on the velocity of a typical enzymatic reaction (V)?
Solution
(c) Some enzymes acts best in an acid medium and others in an alkaline medium. For every enzyme, there is an optimum pH where its action is maximum. Most enzymes shows activity in a pH range of about 6.0 to 7.5 i.e., neutral pH. A shift towards the alkaline or acid side rapidly decreases the enzyme activity and finally, stops it altogether
(c) Some enzymes acts best in an acid medium and others in an alkaline medium. For every enzyme, there is an optimum pH where its action is maximum. Most enzymes shows activity in a pH range of about 6.0 to 7.5 i.e., neutral pH. A shift towards the alkaline or acid side rapidly decreases the enzyme activity and finally, stops it altogether
Q9.
One feature common to all the compounds found in the acid soluble pool is
Solution
(a) There is a common feature to all the compounds found in the acid soluble pool. They have molecular weights ranging from 18 to around 800 dalton (Da) approximately
(a) There is a common feature to all the compounds found in the acid soluble pool. They have molecular weights ranging from 18 to around 800 dalton (Da) approximately
Q10.
All the carbon compounds obtained from living tissues are named as
Solution
(a) All the carbon compounds obtained from living tissues are named as biomolecules
(a) All the carbon compounds obtained from living tissues are named as biomolecules
