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Ask QuestionPosted by S Sibiraj 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
A gene is a small portion of the DNA, with codes for a particular polypeptide or a protein. In other words, it is the functional unit of the DNA. It is also responsible for the transmission of hereditary characters from the parents to the offspring.
Twinkle Thakur 5 years, 3 months ago
Posted by Kiranmayee Sahu 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Dobereiner's law of triads: According to which in certain triads the atomic mass of the central element was merely the arithmetic mean of the atomic masses of the other two elements and the properties of the middle element were in between those of the end members. These families of three elements became known as Dobereiner's Triads.
Merits-
- From this classification, one point became clear that properties of the elements have some relationship with their atomic masses.
Demerits-
- In some triads, all the three elements possessed nearly the same atomic masses, hence the law was rejected.
- The concept was not applicable to all the known elements but only to a limited number of elements.
Posted by Saurvi Gahlaut 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Kunal Arora 5 years, 3 months ago
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Posted by Alok Raj 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
There are four heart valves in the heart. They are:
- The tricuspid valve, located between the right atrium and the right ventricle.
- The pulmonary (pulmonic) valve, between the right ventricle and the pulmonary artery.
- The mitral valve, between the left atrium and left ventricle.
- The aortic valve, between the left ventricle and the aorta.
Posted by Satyam Kumar 5 years, 3 months ago
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Posted by Samraat Sahil Verma 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Plants wilt in the afternoon when due to high temperature the rate of evaporation and transpiration is high. The root uptake of water cannot match the amount of water that is being lost. This causes water content in plant parts to get low and hence they wilt. In the morning or evening when the temperature fall down the rate of evaporation and transpiration is less and the cell overcomes water deficiency by uptake by roots hence regaining freshness.
Posted by Mohit Vilangil 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Samraat Sahil Verma 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Lovely Singh 5 years, 3 months ago
Posted by Mohit Vilangil 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Samraat Sahil Verma 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
| Right lung | Left lung |
| It has three lobes namely, upper, middle and lower. | It has two lobes, upper and lower. |
| It has deep concavity on the inner surface that is called the cardiac impression | It is less concave than right lung. |
| It has two bronchi. | It has one bronchus. |
| It is shorter and wider in shape. | It is narrower and is oblong in shape. |
Posted by Chengo . 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Functioning of a Nephron:
- The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
- The water and solute are transferred to the nephron at Bowman’s capsule.
- In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
- The filtrate then moves down into the loop of Henle, where more water is absorbed.
- From here, the filtrate moves upwards into the distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
- The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.
Sanika Walimbe 5 years, 3 months ago
Posted by Manjot Kaur 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Charvi Sangwan 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
If the acid contains oxygen (called an oxoacid), then the suffixes –ous and –ic is used again, representing the lower and higher number of oxygens in the acid formula. Oxoacids contain hydrogen, oxygen, and other element Acids that contain hydrogen, oxygen, plus another element are called oxoacids.
Posted by Charvi Sangwan 5 years, 3 months ago
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Yangzee Sherpa 5 years, 3 months ago
Riya Philip 5 years, 3 months ago
Posted by Charvi Sangwan 5 years, 3 months ago
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Sanika Walimbe 5 years, 3 months ago
Posted by Charvi Sangwan 5 years, 3 months ago
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Kunal Arora 5 years, 3 months ago
Sanika Walimbe 5 years, 3 months ago
Posted by Charvi Sangwan 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
The name plaster of Paris came from the fact that it was first of all made by heating gypsum which was mainly found in Paris. The compound plaster of Paris is prepared by heating gypsum at 120oC.
CaSO4.2H2O → CaSO4.1/2H2O + 3/2H2O
The chemical formula for the plaster of Paris is (CaSO4) H2O and is better known as calcium sulfate hemihydrate.
Posted by Charvi Sangwan 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
Bleaching powder is a yellowish white powder with a strong smellof chlorine. When exposed to air,bleaching powder gives a smell of chlorine. This is becausebleaching powder reacts with carbon dioxide from theatmosphere to produce calcium carbonate and chlorine gas.
Sanika Walimbe 5 years, 3 months ago
Posted by Charvi Sangwan 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
When metallic oxides react with water they form metallic hydroxides which are basic in nature.to show that these are basic in nature,we should conduct a litmus paper test.in this experiment,we will observe that red litmus turns blue on coming in contact with them.this shows that metallic oxides are basic in nature.
Posted by Aayush Tyagi 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Aastha Jha 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Hold the right-hand forefinger, middle finger and the thumb at right angles to each other. If the forefinger represents the direction of the magnetic field, the thumb points in the direction of motion or applied force, then the middle finger points in the direction of the induced current.
Posted by Sabapathy V 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Akshita Akshita 5 years, 3 months ago
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Posted by Charvi Sangwan 5 years, 3 months ago
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Yogita Ingle 5 years, 3 months ago
- The hydroxide concentration is a direct measure of a solution's pH. This may be formed in water/pure water where an acid exist. H3O+ is its chemical formula By combining an H+ion with an H2O molecule, it is formed too.
- The H+ion has a trigonal pyramidal geometry and comprises 1 oxygen atom and 3 hydrogen atoms. There is a single pair of electrons in oxygen that gives it this shape. Between the atoms, the bond angle is around 113 degree. ---- H2O(l)⇌OH−(aq)+H+(aq
- As H+ions are formed, they bond with H2O molecules in the solution to form H3O+(the hydronium-ion). This is due to the hydrogen ions that is not present in aqueous solutions, however takes the form of water H2O
Posted by Shtri Sakti 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Twinkle Thakur 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Ajin Ajin 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.
Posted by Sofia Sharma 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Posted by Mohd Hamza 5 years, 3 months ago
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Riya Philip 5 years, 3 months ago
Aheli Akansha Roy 5 years, 3 months ago
Yogita Ingle 5 years, 3 months ago
Tooth decay occurs at an acidic pH around 5 or below. The microorganisms of the mouth converts sugars into acids, resulting in decrease of the pH of the saliva. In the presence of these acids, the enamel of the teeth is degraded, and it leads to tooth decay.
Posted by Anshuman Omm 5 years, 3 months ago
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Anshuman Omm 5 years, 3 months ago
Bhumika Badgoti 5 years, 3 months ago
Sanika Walimbe 5 years, 3 months ago
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Md Shami Akhatar 5 years, 3 months ago
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