fundamental unit of life class 9 mcq
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fundamental unit of life class 9 mcq

fundamental unit of life class 9 mcq

Answer: Name the plastid important for photosynthesis in plants. Describe the microscopic structure of the cell. It results the shrinkage of the cell. Hence, your answer will be option [D]. How is endoplasmic reticulum important for membrane biogenesis? Answer : (c) Movement of solvent molecules from higher concentration to lower concentration of solution through a permeable membrane. Mitochondria have their own DNA and ribosomes. Answer: (a) A bacterium                        (b) An Amoeba                   (c) A virus                            (d) A sperm Carbon dioxide moves out of the cell by the process…, 10. Lysosomes are called the suicidal bags of cell as they digest the organelles of their own cell. Golgi bodies, or Golgi complex are formed by stacks of flattened (saucer-shaped) membranes or flattened sacs called cisternae. 24. Virus c. Animal d. a and b. (c) plastids Animals cannot synthesise their own food because chloroplast is not found in the animal cell. The cells of an elephant are not necessarily larger than those of other tiny animals or plants. (c) Hooke                                                     (d) Haeckel (e) Golgi apparatus is removed from the cell? (d) Digestive bag of the cell 17. Why do plant cells possess large sized vacuole? Bacteria is not a plant therefore its cellwall is made up of peptidoglycan. (a) Golgi apparatus is involved with the formation of lysosomes. (b) Mitochondria are called the power house of the cell because, they generate energy in the form of ATP (Adenosine Triphosphate). When movement of the solvent takes place from outside to inside the all (inward movement) the process is endosmosis. (i)   They store, modify, package and condense the proteins synthesised in the ribosomes. a. Chitin b. Cellulose c. Protein and lipid. New questions will be added time to time to increase the question bank. Question 57: ZIET-BBSR/ MCQ for Class IX : Science (Biology) 2013 Page | 1 Multiple Choice Questions for Class IX Chapter 5 The Fundamental Unit of Life 1 Cell is a Latin word for ‘a little room’. 1. Mitosis produces two identical cells, while meiosis produces ……… unidentical cells. It is rich in protein and RNA (Ribonucleic Acid) molecules and acts as the site for ribosome formation, hence are also known as factory of ribosomes. (b) Power house of the cell Answer: In animal cells, it is involved in adhesion, recognition and in the formation of vesicles, cilia, flagella, microvilli etc. (a) endoplasmic reticulum (vi) They synthesise some polysaccharides for the cell membrane. The volume of a cell is fairly constant for a particular cell type and is dependent to the size of an organism. ► (a) Detoxification of poisons and drugs. Which of the following organelles is smallest in size? Endocytosis refers to invagination of a small region of plasma membrane, forming an interacellular membrane-bound vesicle. Following are a few definitions of osmosis. Question 23: Centrosome is found in: (a) Cytoplasm (b) Nucleus (c) Chromosomes (d) Nucleolus 2. (f) Chloroplast are termed as kitchen of cell due to their function of performing photosynthesis. We would like to show you notifications for the latest news and updates. The part of cell which between the plasma membrane and nuclear envelope is called the cytoplasm. {Also, refer (o 0.11) In this case, from small intestine (high concentration) to blood low concentration. Answer: Question 58: (c) Lysosomes are simple, tiny spherical sac-like structures evenly distributed in the cytoplasm each lysosome is surrounded by a double membrane and contains powerful enzymes capable of digesting or breaking down all organic material. (c) flowers and fruits Answer: a. Semi-permeable b. fully-permeable c. Selectively permeable d. Non-permeable.

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