Answer:1
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S. No.
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Prokaryotic cell
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Eukaryotic cell
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1.
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Generally small in size
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Generally large in size
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2.
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Nuclear region is poorly defined due to absence of a nuclear membrane and known as nucleoid
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Nuclear region well defined and surrounded by a nuclear membrane
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3.
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There is a single chromosome
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There are more than on chromosomes
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4.
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Membrane bound cell organelles absent
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Membrane bound cell organelles present
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Answer:2
Prokaryotic cells are often smaller in size (1-10 pm), have a weakly defined nuclear region, non-membrane-bound cell organelles, and a single chromosome. Eukaryotic cells are usually bigger (5-100 pm), and the nuclear area is strongly demarcated by the nuclear membrane. There are membrane-bound cell organelles present and more than one chromosome.
Answer:3
When the plasma membrane ruptures or breaks down, molecules of some substances may easily travel in and out.
Answer: 4
The Golgi apparatus is used to store, modify, and package products in vesicles. If there were no Golgi bodies, the cell's synthesized components would be packaged and sent.
Answer:5
Mitochondria are recognized as the cell's powerhouse since they release the energy essential for many biological processes.
Answer:6
The ER [Endoplasmic Reticulum] synthesizes lipids and proteins.
Answer: 7
Amoeba consumes food via the cell membrane, which generates the food vacuole.
Answer:8
Osmosis is the process of movement of a water molecule from a region of higher water concentration through a semipermeable membrane to a region of lower water concentration.
Answer:9
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Water collects in B and C because the concentration of water in the trough and water in the potato cup differs in both cases. As a result, osmosis occurs because the potato cells behave as a semipermeable membrane.
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Potato A is required for this experiment for comparative purposes; it serves as a control.
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Water does not accumulate in the hollowed-out areas of A and D. Because cup A's content does not allow the water to flow. For osmosis to occur, one concentration must be greater than the other. Because the cells in cup D are dead, the semipermeable membrane does not exist for the passage of water, and no osmosis occurs.
Answer 10
Proteins and lipids are the building blocks of the plasma membrane.
Answer 11
Robert Hooke discovered that cork is composed of box-like compartments that create a honeycomb structure, which he named after his father.
Answer 12
Chloroplasts and mitochondria are the only organelles in the cell that can function independently.
Answer 13
The terms protoplasm and nucleus relate to the cytoplasm and nucleus, respectively.
Answer 14
Amoebae and white blood cells are examples of pathogens.
Answer 15
The red blood cell, or sperm cell in males, is the smallest cell in the body. The nerve cell is the longest kind of cell.
Answer 16
The plasma membrane, the nucleus, and the cytoplasm are all found in every cell.
Answer 17
Diffusion is the term used to describe the movement of gases through a cell membrane, such as carbon dioxide and oxygen.
Answer 18
Osmosis is the term used to describe the passage of water molecules via a selectively permeable membrane. There is a transition from high water concentration to low water concentration in this process.
Answer 19
Chromosomes, which are made up of DNA molecules, provide information on the inheritance of characteristics from one generation to the next generation.
Answer 20
The smooth endoplasmic reticulum of animal cells is involved in the detoxification of a wide range of toxins and medications.
Answer 21
Ribosomes are essential for protein synthesis.
Maths (19)