cell biology Quiz-23
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. In which one of the following would you expect to find glyoxysomes?
Solution
Glyoxysomes were reported from the endosperm of germinating seeds, rich in fatty acids, by Beevers (1969). They serve as enzymatic site for reactions including the conversion of stored fatty acids to carbohydrate. Therefore, glyoxysomes will be present in endosperm of castor but not in endosperm of wheat, which is carbohydrate rich.
Glyoxysomes were reported from the endosperm of germinating seeds, rich in fatty acids, by Beevers (1969). They serve as enzymatic site for reactions including the conversion of stored fatty acids to carbohydrate. Therefore, glyoxysomes will be present in endosperm of castor but not in endosperm of wheat, which is carbohydrate rich.
Q2.Enzyme found functional in lysosome is
Solution
Enzyme acid phosphatase is found functional in lysosome. It acts on substrate phosphomonoestar and convert it into monophosphates.
Enzyme acid phosphatase is found functional in lysosome. It acts on substrate phosphomonoestar and convert it into monophosphates.
Q3. The molecular action of UV light is mainly reflected through
Solution
Ultra violet rays are high energy radiation, which breaks hydrogen bonds between DNA strands.
Ultra violet rays are high energy radiation, which breaks hydrogen bonds between DNA strands.
Q4. The ‘Power house’ of cell is
Solution
Mitochondria is the site of cellular aerobic respiration in eukaryotic cells. In mitochondria, energy is stored in the form of ATP from the oxidation of food material that is why mitochondria is called the power house of cell.
Mitochondria is the site of cellular aerobic respiration in eukaryotic cells. In mitochondria, energy is stored in the form of ATP from the oxidation of food material that is why mitochondria is called the power house of cell.
Q5. Primary wall of eukaryotic cell is …A… layered but secondary wall is …B… layered
Here, A and B refer to
Solution
Primary wall of eukaryotic cells is two layered but secondary wall is atleast three layered
Primary wall of eukaryotic cells is two layered but secondary wall is atleast three layered
Q6. Cell wall consists of
Solution
Cell wall consists of lignin, hemicellulose, pectin and cellulose.
Cell wall consists of lignin, hemicellulose, pectin and cellulose.
Q7. Tubulin protein occurs in
Solution
The ciliary microtubules are made up of tubulin. The two subfibres A and B are composed of and tubulin having mol. Wt. 56,000 and 58,000 respectively.
The ciliary microtubules are made up of tubulin. The two subfibres A and B are composed of and tubulin having mol. Wt. 56,000 and 58,000 respectively.
Q8. Sigma factor is related to
Solution
Sigma factor is related to RNA polymerase.
Sigma factor is related to RNA polymerase.
Q9.Single membrane bound organelles are
Solution
Lysosomes, glyoxysome and spherosomes are single membrane bound cell organelles.
Lysosomes, glyoxysome and spherosomes are single membrane bound cell organelles.
Q10. Identify the given figure
Solution
GB
