The Fundamental Unit of Life Class 9 MCQ with Answers. We covered all the Fundamental Unit of Life Class 9 MCQ with Answers in this post for free so that you can practice well for the exam.
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MCQ on Fundamental Unit of Life with Answers for Class 9 Students
With reference to the animal cell, which of the following statements is correct? 1. There is no cell wall in animal cells but the cell is covered by a plasma membrane. 2. Chlorophyll is not found in animal cells. 3. Lysosome occurs in plant cells. 4. Almost in all animal cells, centrioles exist. Codes :
(a) 2 and 3 only
(b) 1, 2, and 3 only
(c) 1,2 and 4
(d) All of the above
Option c – 1,2 and 4
Consider the following statements regarding osmosis in animal cells : 1. If the water potential of the solution surrounding the cell is too high, the cell shrinks. 2. If the water potential of the solution surrounding the cell is too low, the cell swells and bursts. It is important to maintain a constant water potential inside the animal body. 4. In animal cells, water potential far exceeds the solute potential. Which of the statements given above is/are correct?
(a) 1 and 2
(b) 3 only
(c) 4 only
(d) 2 and 3
Option b – 3 only
The living content of cell is called protoplasm. It is composed of :
(a) Cytoplasm only
(b) Cytoplasm and meloplasm
(c) Nucleoplasm only
(d) Cytoplasm, nucleoplasm and other organelles
Option b – Cytoplasm and meloplasm
Consider the following statements regarding the living cell : (A) The Golgi apparatus links carbohydrates with proteins to form glycoproteins. (B) In plants, the Golgi complex synthesizes pectin. (C) The lysosomes store the hydrolysing enzymes. Which of these statement(s) is/are correct?
(a) Only (A) and (B)
(b) Only (B)
(c) Only (C)
(d) (A), (B) and (C)
Option d – (A), (B) and (C)
A cell will swell up if
(a) the concentration of water molecules in the cell is higher than the concentration of water molecules in surrounding medium.
(b) the concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell.
(c) the concentration of water molecules is same in the cell and in the surrounding medium.
(d) concentration of water molecules does not matter.
Option b – the concentration of water molecules in surrounding medium is higher than water molecules concentration in the cell
(a) Cell membrane, endoplasmic reticulum, vacuoles
(b) Cell wall, plasma membrane, mitochondria
(c) Cell wall, nucleus, cytoplasm
(d) Plasma membrane, cytoplasm, ribosome
Option d – Plasma membrane, cytoplasm, ribosome
Which of the following is not a true statement about chloroplasts and mitochondria?
(a) Each contains a small amount of DNA
(b) Neither are components of the endomembrane system
(c) Both are membrane less organelles
(d) Mitochondria do not synthesise all their proteins
Option c – Both are membrane less organelles
Which of the following is the correct sequence of the different phases of cell division? 1. Anaphase 2. Telophase 3. Prophase 4. Metaphase Codes :
(a) 1, 2, 3, 4
(b) 1,3,2,4
(c) 3, 1,4,2
(d) 3,4, 1, 2
Option d – 3,4, 1, 2
Consider the following statements and choose the correct code. Assertion (A) : A true nucleus is absent in E. coli and other prokaryotes. Reason (R) : An undifferentiated, unorganised fibrillar chromosome exists inside the prokaryotic cells. Codes :
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is false, but R is true.
(d) Both A and R are false.
Option a – Both A and R are true and R is the correct explanation of A
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