Cell Biology Quiz-02
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.
Highest number of enzymes is found in:
Solution
(c) Mitochondrion possesses highest number of enzymes.
(c) Mitochondrion possesses highest number of enzymes.
Q2.
In fluid mosaic model of plasma membrane:
Solution
(c) In fluid mosaic model of plasma membrane, phospholipids form a bimolecular layer in the middle part
(c) In fluid mosaic model of plasma membrane, phospholipids form a bimolecular layer in the middle part
Q3.
The process of removal of introns and joining of exons in called:
Solution
(d) The process of removal of introns (non-coding genes) and joining of exons (coding genes) is called splicing.
(d) The process of removal of introns (non-coding genes) and joining of exons (coding genes) is called splicing.
Q4.
Correct sequence of layers of bacterial cell envelope is
Solution
(b) Bacterial cell envelope consists of three components glycocalyx, cell wall and cell membrane Glycocalyx It is the outermert mucilage layer of the cell envelope Cell Wall It is rigid solid covering, which provides shape and structural support to the cell. Cell wall lies between plasma membrane and glycocalyx Plasma/Cell Membrane It is selectively permeable covering of the cytoplasm that forms the innermost components of cell envelope
(b) Bacterial cell envelope consists of three components glycocalyx, cell wall and cell membrane Glycocalyx It is the outermert mucilage layer of the cell envelope Cell Wall It is rigid solid covering, which provides shape and structural support to the cell. Cell wall lies between plasma membrane and glycocalyx Plasma/Cell Membrane It is selectively permeable covering of the cytoplasm that forms the innermost components of cell envelope
Q5.
Cristae are associated with which of the following?
Solution
(a) Mitochondria is bound by two highly specialised membranes. The inner membrane is impermeable and highly convoluted, forming a series of infoldings known as cristae, in the matrix space
(a) Mitochondria is bound by two highly specialised membranes. The inner membrane is impermeable and highly convoluted, forming a series of infoldings known as cristae, in the matrix space
Q6.
Which of the following is responsible for the origin of lysosome?
Solution
(c) Primary lysosomes are formed either directly from ER (endoplasmic reticulum) of indirectly from Golgi complex. Generally, hydrolytic enzymes are synthesised first by ribosomes and then transferred to ER. From ER, these are conveyed to Golgi complex through blebbing. Golgi complex then gives birth to lysosomes through blebbing in itself.
(c) Primary lysosomes are formed either directly from ER (endoplasmic reticulum) of indirectly from Golgi complex. Generally, hydrolytic enzymes are synthesised first by ribosomes and then transferred to ER. From ER, these are conveyed to Golgi complex through blebbing. Golgi complex then gives birth to lysosomes through blebbing in itself.
Q7.
Within the nucleus DNA is organised along with proteins into material called:
Solution
(b) Within the nucleus, DNA is organised along with proteins into material called chromatin and thick condensed chromatin is called chromosome.
(b) Within the nucleus, DNA is organised along with proteins into material called chromatin and thick condensed chromatin is called chromosome.
Q8.
In prokaryotes, chromatophores are:
Solution
(d) Some prokaryotes like photosynthetic bacteria and blue-green algae posses small membrane lined chromatophores, which are similar to but chemically simpler than the chlorophyll of plants.
(d) Some prokaryotes like photosynthetic bacteria and blue-green algae posses small membrane lined chromatophores, which are similar to but chemically simpler than the chlorophyll of plants.
Q9.
Study of form, structure and composition of cells is called:
Solution
(b) Study of form, structure and composition of cells is called Cytology
(b) Study of form, structure and composition of cells is called Cytology
Q10.
Robert Hooke thought about the cells that:
Solution
(a) Robert Hooke coined the term ‘cell’ (1665). He thought about the cells, as something similar to veins and arteries of animals, and are filled with juices in living plants.
(a) Robert Hooke coined the term ‘cell’ (1665). He thought about the cells, as something similar to veins and arteries of animals, and are filled with juices in living plants.
