Cell Biology 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.
The lipid molecules present in plasma membrane have polar heads and non-polar tails (as shown in figure).
Which option represents the correct arrangement of lipids in lipid bilayer?
Which option represents the correct arrangement of lipids in lipid bilayer?
Solution
(b) Lipids are arranged in bilayers and proteins are embedded in it. Lipids are arranged within the membrane with polar head towards the outer side while hydrophobic tails towards the inner side
(b) Lipids are arranged in bilayers and proteins are embedded in it. Lipids are arranged within the membrane with polar head towards the outer side while hydrophobic tails towards the inner side
Q2.
The term ‘cytoplasm’ and ‘nucleoplasm’ were given by
Solution
(b) Strasburger coined the terms ‘cytoplasm’ and ‘nucleoplasm’.
(b) Strasburger coined the terms ‘cytoplasm’ and ‘nucleoplasm’.
Q3.
Which of the following is the function of cytoskeleton?
Solution
(d) Cytoskeletal structures maintains the shape of the cell and its extensions, regulate orientation and distribution of cell organelles, intracellular transport and movement of cells
(d) Cytoskeletal structures maintains the shape of the cell and its extensions, regulate orientation and distribution of cell organelles, intracellular transport and movement of cells
Q4.
Protoplasm of a eukaryotic cell is called
Solution
(b) Protoplasm of a cell is called protoplast
(b) Protoplasm of a cell is called protoplast
Q5.
Glyoxylate cycle occurs in
Solution
(c) In 1967, Breidenback and Beevers discovered glyoxysomes in fat storing cells or germinating fatty seeds.
(c) In 1967, Breidenback and Beevers discovered glyoxysomes in fat storing cells or germinating fatty seeds.
Q6.
Protein synthesis takes place in
Solution
(a) Protein synthesis is also known as translation. Protein synthesis takes place in ribosomes.
(a) Protein synthesis is also known as translation. Protein synthesis takes place in ribosomes.
Q7.
Which of the following statements are correct about prokaryotic genetic material (DNA)?
I. DNA is naked, that is without histones
II. DNA is usually circular/single chromosome
III. Outside the genomic DNA, small circular DNA is also present in many bacteria
IV. The smallest DNA are called plasmids
I. DNA is naked, that is without histones
II. DNA is usually circular/single chromosome
III. Outside the genomic DNA, small circular DNA is also present in many bacteria
IV. The smallest DNA are called plasmids
Solution
(b) In prokaryotic cell, DNA is naked, that is, without histones. DNA is usually circular. In addition to the genomic DNA, many bacteria have small circular DNA outside the genomic DNA. These are called plasmids
(b) In prokaryotic cell, DNA is naked, that is, without histones. DNA is usually circular. In addition to the genomic DNA, many bacteria have small circular DNA outside the genomic DNA. These are called plasmids
Q8.
During replication of a bacterial chromosome, DNA synthesis starts from a replication origin site and
Solution
(a) During replication of a bacterial chromosome, initiation of DNA synthesis always requires a smaller segment of RNA called RNA primer.
(a) During replication of a bacterial chromosome, initiation of DNA synthesis always requires a smaller segment of RNA called RNA primer.
Q9.
Cell is the fundamental structural and functional unit of all living organisms. This was evidenced by the fact that
Solution
(d) Unicellular organisms are capable of (i) independent existence, (ii) performing the essential functions of life. Anything less than a complete structure of a cell do not ensure independent living. Hence, cell is the fundamental structural and functional unit of all living organisms
(d) Unicellular organisms are capable of (i) independent existence, (ii) performing the essential functions of life. Anything less than a complete structure of a cell do not ensure independent living. Hence, cell is the fundamental structural and functional unit of all living organisms
Q10.
The study related to the structure and function of a cell is called
Solution
(b) Cytology or cell biology is the branch of biology dealing with study of structure and function of a cell.
(b) Cytology or cell biology is the branch of biology dealing with study of structure and function of a cell.
