Many important questions are formed in competitive exams like NEET and boards from Class 11 Biology Chapter 8. Cell the Unit of Life is the eighth chapter in the Class 11 NEET syllabus for Biology. Below, we have provided Important Questions from Class 11 Biology Chapter 8 Cell the Unit of Life for your NEET 2023 preparation. You can check it here or download it later for revision purposes.
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Cell the Unit of Life Class 11 NEET Questions and Answers
We’ve compiled a list of essential questions about the Cell the Unit of Life biology class 11 chapter 7 that you should not miss while studying for your NEET Exams.
Cell the Unit of Life MCQ for NEET
The intake of solid material from outside to the inside of a cell is
Select the mismatched pair.
The chromosomes having a median centromere are
Which among the following organelles is the site for protein synthesis?
Which of the following statements is not true about nucleus?
According to the fluid mosaic model
Fibril organisation is ______ in centriole and ______ in case of cilia and flagella
Read the given statements and select the correct one.
Thread-like protoplasmic projections which are formed on the free surface of absorptive cells of intestine are
The 90% of the cell volume in a plant cell is occupied by
Cell the Unit of Life Match the Following Questions for NEET
Match column I with column II.
| Column I | Column II |
|---|---|
| A. Chloroplasts | (i) Nuclear division |
| B. Nucleoplasm | (ii) Photosynthesis |
| C. Chromosomes | (iii) Respiration |
| D. Mitochondria | (iv) Ribosome formation |
A. A-(ii), B-(iv), C-(i), D-(iii)
Preparing for NEET? Don’t forget to check Chapterwise Important Questions–
The Living World NEET Questions and Answers
Biological Classification NEET Questions and Answers
Plant Kingdom NEET Questions and Answers
Animal Kingdom NEET Questions and Answers
Electrostatics NEET Questions and Answers
Morphology of Flowering Plants NEET Questions and Answers
Anatomy of Flowering Plants NEET Questions and Answers
Cell the Unit of Life Assertion and Reason Questions for NEET
In each of the following questions, a statement of Assertion (A) is given and a corresponding statement of Reason (R) is given just below it. Of the statements, pick the correct answer as :
Assertion : Endoplasmic reticulum is a part of endomembrane system. Reason : Endoplasmic reticulum divides by fission.
Assertion : Lysosomes are membraneless cell organelles. Reason : Large number of digestive enzymes or acid hydrolases are present in lysosomes
Assertion : Leucoplasts are found in varied shapes and sizes with stored nutrients. Reason : Leucoplasts are coloured plastids
Assertion : Cell is the basic unit of life. Reason : All the activities of life are performed by cells.
Assertion : Cell wall is a non-living rigid structure of the cell. Reason : The cell wall of algae is made up of cellulose, galactans and mannans.
Assertion : Pili are elongated tubular structure found on the surface of bacteria. Reason : Pili do not play a role in motility.
Assertion : Membrane transport requires carrier proteins. Reason : Transport across the cell membrane always occurs along the concentration gradient
Assertion : SER is the major site for synthesis of proteins. Reason : Lipids like steroidal hormones are synthesised in SER.
Assertion : Proteins are modified in the cisternae of the golgi bodies. Reason : Modified proteins are released from the Cis-face of the Golgi bodies.
Assertion : Secondary wall is capable of growth. Reason : Secondary wall is formed on the inner side of the cell.
Cell the Unit of Life Figure-Based Questions for NEET
Observe the given figure of chloroplast and answer the following questions.
(a) Identify A, B, C and D in the given figure.
A. In the given figure, A represents Granum, B represents Thylakoid, C represents Stroma lamella and D represents Stroma.
(b) Briefly describe the part labelled as B.
A. The labelled part B represent thylakoids. They are membrane lined flattened sacs which run throughout the stroma or matrix of the chloroplast. Since, they take part in photosynthesis, they are also called photosynthetic thylakoids. Thylakoids are thus the structural elements of the chloroplast. They generally run parallel but may show interconnections. Thylakoids may also be attached to the inner membrane of chloroplast envelope. Because of the presence of grana, thylakoids are differentiated into two granal thylakoids and stroma or intergranal thylakoids. Thylakoid membranes possess photosynthetic pigments and coupling factors.
(c) What are the functions of chloroplast?
A. Chloroplasts are the centres of photosynthesis or formation of organic compounds from inorganic raw materials. The organic substances, thus synthesised, not only provide body building material to autotrophic plants themselves but also to all heterotrophic plants as well as animals. Chloroplasts pick up carbon dioxide and the use of same in photosynthesis. Chloroplasts liberate oxygen which is passed into the atmosphere. This keeps the balance of oxygen constant in the atmosphere.
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