Which Of The Following Is The Storage Form Of Carbohydrate In Animals?

MCQ Questions for Class nine Scientific discipline Chapter 5 The Fundamental Unit of Life with Answers

MCQs from Class 9 Science Chapter 5 – The Fundamental Unit of Life are provided here to help students prepare for their upcoming Science exam.

MCQs from CBSE Course nine Scientific discipline Affiliate v: The Fundamental Unit of measurement of Life

1. A prison cell will slap-up up if
(a) The concentration of water molecules in the cell is college than the concentration of water molecules in the surrounding medium.
(b) The concentration of water molecules in the surrounding medium is higher than the concentration of water molecules in the prison cell.
(c) The concentration of h2o molecules is same in the prison cell and in the surrounding medium
(d) The concentration of water molecules does not affair.

Answer/ Caption

(b) The concentration of water molecules in the surrounding medium is higher than the concentration of water molecules in the cell.

2. Which of the following statement marks as a difference betwixt institute cell and creature cell?
(a) Plant cells take jail cell wall which animal cells do not.
(b) Found cells do not have vacuole while animal cells practice have.
(c) Plant cells have only cell membrane while animal cells have both cell wall too equally prison cell membrane.
(d) Found cells accept more plastids while beast cells have few plastids.

Answer/ Explanation

3. Endoplasmic reticulum ane of the prison cell organelles, exists as a bleary network that extends from outer membrane of nucleus to the plasma membrane making a connexion between them.

Which of the post-obit statements is not related to the endoplasmic reticulum?
(a) It behaves as ship channel for proteins betwixt nucleus and cytoplasm.
(b) It transports materials between various regions in cytoplasm.
(c) It can be the site of energy generation.
(d) It can exist the site of some biochemical activities of the cell.

Reply/ Explanation

iv. Osmosis is a process past which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more than concentrated one. Can you option out the option amid the following which does not belong to this procedure?
(a) The movement of water across a semipermeable membrane is afflicted by the corporeality of substances dissolved in information technology.
(b) Membranes are made of organic molecules such as proteins and lipids.
(c) Molecules soluble in organic solvents tin easily pass through the membrane.
(d) Plasma membranes contain chitin sugar in plants.

Answer/ Caption

(d) Plasma membranes incorporate chitin sugar in plants.

5. The nucleus controls all the activities of the cell and acts equally a site of Deoxyribonucleic acid material and protein synthesis. It is composed of some components which all together give the nucleus its functionality. Hither is shown a figure of nucleus with some of its components labeled as A, B, C and D. can you name these components correctly?

(a) A – Nucleons; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
(b) A – Nucleus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
(c) A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nucleoplasm
(d) A – Nucleolus; B – Chromatin; C – Nuclear membrane; D – Nuclear wall

Answer/ Explanation

6. You must take observed that a fruit when unripe is green merely it becomes beautifully coloured when ripe. According to you lot what is the reason behind this colour modify.
(a) Chloroplasts change to chromosplasts
(b) Chromosplasts alter to chromosomes
(c) Chloroplasts alter to chromosomes
(d) Chromosplasts alter to chloroplasts

Reply/ Explanation

(a) Chloroplasts change to chromosplasts

7. Rahul'due south mother was going to make pickle. For this she cut the vegetables into pocket-sized pieces and put them in the sun for few hours. Rahul was observing all her activities very curiously and asked his female parent if why she had put the salted vegetables in the sun. among the following what might be the near appropriate reply for his question?
(a) So that the pickle may become extra flavour.
(b) And so that the cut vegetables may absorb the vitamin d as a nutrient from the sun rays.
(c) So that the vegetables may lose all the water past improvidence and evaporation and become dry.
(d) So that the salt may get evenly and properly absorbed by the vegetables.

Reply/ Explanation

8. The process of plasmolysis in found prison cell is divers as:
(a) Breakdown of plasma membrane in hypotonic solution.
(b) Shrinkage of cytoplasm in hypertonic medium.
(c) Shrinkage of Nucleoplasm.
(d) None of these.

Respond/ Explanation

(b) Shrinkage of cytoplasm in hypertonic medium.

9. Mitochondria are the sites of respiration in the cell. They oxidize carbohydrates and fats present in the cell to produce carbon dioxide, water and a lot of energy. The energy so released is stored in the class of ATP molecules. Since mitochondria in the prison cell are used to synthesize energy so, they are likewise called:
(a) Energy currency of the cell
(b) Energy generator of the cell
(c) Kitchen of the cell
(d) Power house of the cell

Answer/ Explanation

(d) Ability house of the jail cell

10. Prison cell is the structural and functional unit of measurement of life. The give-and-take cell is derived from the Latin discussion 'cellula' which means "a petty room". Can you name the scientist who coined the term prison cell?
(a) Robert Hooke
(b) Anton Von Leeuwenhoek
(c) Robert Dark-brown
(d) Ernst Haeckel

Answer/ Caption

(a) Robert Hooke

11. In a test, a teacher nerveless the answers written past four students equally the definition of osmosis as given beneath. Read carefully and select the correct 1.
(a) Movement of h2o molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane.
(b) Movement of solvent molecules from its higher concentration to lower concentration.
(c) Movement of solvent molecules from higher concentration to lower of solution through a permeable membrane.
(d) Movement of solute molecules from lower concentration to college concentration of solution through a semipermeable membrane.

Answer/ Explanation

(a) Motility of water molecules from a region of college concentration to a region of lower concentration through a semipermeable membrane.

12. Amongst the following statements which 1 is incorrect?
(a) Golgi apparatus is involved with germination of lysosomes.
(b) Nucleus, mitochondria and plastid take DNA, hence they are able to make their ain structural proteins.
(c) Lysosomes are called the suicide bags as they consume upward their own cells.
(d) Cytoplasm is called known every bit protoplasm.

Answer/ Caption

(d) Cytoplasm is chosen known as protoplasm.

xiii. Anjali wanted to eat rice and kidney bean (rajmah). She requested her mother to melt the same on next twenty-four hour period. At dark her mother took a cup of kidney beans and put them in a container having some water and the kept the container covered overnight. Next day information technology was observed that the kidney beans got swollen and were fix to exist cooked. What is this phenomenon due to which kidney beans got swollen is known every bit?
(i) Osmosis
(2) Improvidence
(iii) Endosmosis
(iv) Exosmosis
Choose the correct choice among the following:
(a) Only (3)
(b) Both (i) and (3)
(c) Both (i) and (iv)
(d) Only (i)

Answer/ Explanation

(b) Both (i) and (iii)

14. A vacuole is a space or cavity inside the cytoplasm of a cell, enclosed by a membrane and typically containing fluid. They are a kind of storage sacs that are very large sized in constitute cell as compared to that in the beast cell.

Which amongst the following is not a function of the vacuole?
(a) They assistance to shop the toxic metabolic by-products of the plant cell.
(b) They provide turgidity and rigidity to the plant cell.
(c) They help to maintain the osmotic pressure in the prison cell.
(d) They aid the plant in its growth by the process of cell division.

Reply/ Explanation

(d) They help the plant in its growth by the process of cell division.

fifteen. The proteins and lipids, essential for edifice the prison cell membrane, are manufactured past:
(a) Endoplasmic reticulum
(b) Golgi apparatus
(c) Mitochondria
(d) Peroxisomes

Answer/ Explanation

(a) Endoplasmic reticulum

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