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Ask QuestionPosted by Daksh Garg 4 years, 3 months ago
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Posted by Anjali Kumari 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The melting point of ice will decrease is some common salt is added to it. This is because addition of non- volatile solute(salt) causes a depression in the freezing point of water.Due to this water freezes at a lower temperature and thus ice starts melting at a faster rate.
Posted by Anjali Kumari 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
(i) Gases and liquids do not have fixed shape.
(ii) Gases and liquids flow easily. (or any other relevant points)
Posted by Anjali Kumari 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
On a dry day, the sweat is evaporated due to dry weather and our body feels cool but on a humid day, the sweat doesnot evaporate because of the presence of moisture in air.
Therefore our body remains hot and we sweat even more.
Hence, sweating is more on a humid day than a dry day.
Posted by Anjali Kumari 4 years, 3 months ago
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Yash Dhyani 4 years, 3 months ago
Shristi . 4 years, 3 months ago
Posted by Anjali Kumari 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The temperature of any substance remain constant during the change of state because the heat energy supplied is used up in changing the state of matter and also this heat is used for breaking of several bonds or attractive forces.This heat, which does not raise the temperature of the body, is called Laten heat.
Posted by Anjali Kumari 4 years, 3 months ago
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Sayanm Diwakar 4 years, 3 months ago
Posted by Ayush Pandey 4 years, 3 months ago
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Anjali Kumari 4 years, 3 months ago
Shristi . 4 years, 3 months ago
Posted by Ratna Swetha Kancharla 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
- Loudness: Loudness is the response of ear to the sound. Loudness is proportional to the square of the amplitude of the vibration body producing sound. The more the amplitude of vibration, the sound is the loud. The lesser the amplitude of vibration, the sound is feeble.
Loudness = k.(Amplitude)2 (where k is the proportionality constant)
The loudness is expressed in a unit called decibel (dB).
Posted by Ratna Swetha Kancharla 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
Wavelength: The distance between 2 consecutive crest or troughs is called Wavelength. It is represented by the symbol λ(lamda). Unit is m.
Posted by Ratna Swetha Kancharla 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
- Inertia is the natural tendency of an object to resist a change in its state of motion or of rest.
- A force that is just enough to cause a small cart to pick up a large velocity will produce a negligible change in the motion of a train, because of train’s large inertia.
Posted by Kunal Hazra 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
Mitochondria are known as the powerhouse of the cell because it is responsible for the extracting energy from food through cellular respiration. The energy is released in the form of adenosine triphosphate (ATP) it is an energy currency of the cell.
Posted by Rishik Rishik 4 years, 3 months ago
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Posted by Death Legends 4 years, 3 months ago
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Meghna Thapar 4 years, 3 months ago
Cellular metabolism: Reactions that break down food into nutrients to be used by the cell for energy and the reactions that combine molecules to produce larger products. Cell metabolism provides a reflection of the health status of the cell. The mitochondrion is the main powerhouse of the cell in which bioenergetic processes occur by the uptake of fuel sources such as glucose and fatty acids and converts them into energy in a series of enzymatic reactions.
Posted by Rayan Farooq 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
A horse pushes the ground in the backward direction. According to Newton’s third law of motion, a reaction force is exerted by the Earth on the horse in the forward direction. As a result, the cart moves forward.
Posted by Riya Jain 4 years, 3 months ago
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Rayan Farooq 4 years, 3 months ago
Posted by Vaibhav P 4 years, 3 months ago
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Harshit Bothra 4 years, 3 months ago
Harshit Bothra 4 years, 3 months ago
Posted by Sanyog Pandey 4 years, 3 months ago
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Posted by Chitralekha Khaund 4 years, 3 months ago
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Meghna Thapar 4 years, 3 months ago
Plant Parts and Animal Products as Food:
The parts of a flowering plant includes – roots, stems, leaves, flower, fruit and seeds.We eat different parts of a plant as food material like its roots, stems, leaves, flowers, fruits and seeds.
Posted by Chitralekha Khaund 4 years, 3 months ago
- 2 answers
Meghna Thapar 4 years, 3 months ago
| Animal Cell | Plant Cell |
|
i. Animal cells are generally small in size. ii. Cell wall is absent. iii. Animal cells have a single highly complex and prominent Golgi apparatus. iv. Animals cells have centrosome and centrioles. |
i. Plant cells are larger than animal cells. ii. The plasma membrane of plant cell is surrounded by a rigid cell wall of cellulose. iii. Plant cells have many simpler units of Golgi apparatus, called dictyosomes. iv. Plant cells lack centrosome and centrioles. |
Posted by Alex Saji 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
| Plant Cell | Animal Cell |
| 1. They are larger in size. | 1. They are smaller in size. |
| 2. Cell wall is present. | 2. Cell wall is absent. |
| 3. Lysosomes are absent or very few in number | 3. Lysosomes are larger in number. |
| 4. Plastids are present. | 4. Plastids are absent. |
| 5. Subunits of Golgi bodies known as dictyosomes are present. | 5. Prominent Golgi bodies are present. |
| 6. Vacuoles are larger in size. | 6. Vacuoles are smaller in size. |
Posted by Shaun Fernandes 4 years, 3 months ago
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Posted by Devesh More 4 years, 3 months ago
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Kanav Dumra 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
- A colloid is a kind of solution in which the size of solute particles is intermediate between those in true solutions and those in suspensions.
- For Example: - Soap solution, Milk, Ink, Blood and solutions of synthetic detergents.
Posted by Kamaldeep Rao 4 years, 3 months ago
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Posted by Devesh More 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
Meristematic cells divide frequently and give rise to new cells and hence they need dense cytoplasm and thin cell wall. Vacuoles causes hindrance in cell division as it is full of cell sap to provide turgidity and rigidity to the cell. Also vacuoles basically serve the purpose of storing of nutrients, excess salts etc. Meristematic cells do not need to store these nutrients as they have compact shape.
Posted by Aniket Raj 4 years, 3 months ago
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Posted by Aniket Raj 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The cellular components are called the Cell Organelles. These cell organelles are membrane-bound, present within the cells and are distinct in their structures and functions. They coordinate with their functions efficiently for the normal functioning of the cell. Few of them functions providing shape and support, whereas some are involved in the locomotion and reproduction of a cell. There are various organelles present within the cell and are classified into three categories based on the presence or absence of membrane.
Organelles without membrane: The Cell wall, Ribosomes, and Cytoskeleton are membrane-bound cell organelles. They are present both in prokaryotic cell and the eukaryotic cell.
Single membrane-bound organelles: Vacuole, Lysosome, Golgi Apparatus, Endoplasmic Reticulum are single membrane-bound organelles present only in a eukaryotic cell.
Double membrane-bound organelles: Mitochondria and chloroplast are double membrane-bound organelles present only in a eukaryotic cell.
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Meghna Thapar 4 years, 3 months ago
A Set is a collection of well defined objects. we come across , the usage of sets in our everyday life. a) in the kitchen , the utensils are arranged in such a manner that the plates are kept seperately, bowls are kept seperately etc. The purpose of sets is to house a collection of related objects. They are important everywhere in mathematics because every field of mathematics uses or refers to sets in some way. They are important for building more complex mathematical structure.
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