On adding salt, Vegetables release water due to exosmosis. Exosmosis occurs whenever the external medium is hypertonic as compared to the osmotic concentration inside living cells.
On adding salt, Vegetables release water due to exosmosis. Exosmosis occurs whenever the external medium is hypertonic as compared to the osmotic concentration inside living cells.
Digested food is taken in the intestinal cells by the following process: (i) Glucose, amino acids and some ions - Active transport. (ll) Fatty acids, glycerol - Diffusion (Passive transport) (iii) Water - Osmosis.
Digested food is taken in the intestinal cells by the following process:
(i) Glucose, amino acids and some ions – Active transport.
(ll) Fatty acids, glycerol – Diffusion (Passive transport)
(iii) Water – Osmosis.
Concentrated salt solution is a hypertonic solution so causes irritation and excessive dehydration in the wall of alimentary canal dr.ie to exosmosis. There is uncomfortable stretching which causes reverse movements and hence vomiting.
Concentrated salt solution is a hypertonic solution so causes irritation and excessive dehydration in the wall of alimentary canal dr.ie to exosmosis. There is uncomfortable stretching which causes reverse movements and hence vomiting.
Clothes are washed with soap or detergent solution. This solution is hypertonic as compared to osmotic concentration of our skin cells. The washing solution, therefore, results in exosmosis in the skin cells that come in contact with it for some time. Due to this reason, the skin over the fingers shRead more
Clothes are washed with soap or detergent solution. This solution is hypertonic as compared to osmotic concentration of our skin cells. The washing solution, therefore, results in exosmosis in the skin cells that come in contact with it for some time. Due to this reason, the skin over the fingers shrinks while washing
clothes for a long time.
Yes, cell is a building unit of every living organism as every living being is made up of one or more cells. For example, in unicellular or acellular organisms, the single cell performs all the functions of life. In multicellular organisms all the cells have a similar basic structure and perform a sRead more
Yes, cell is a building unit of every living organism as every living being is made up of one or more cells. For example, in unicellular or acellular organisms, the single cell performs all the functions of life. In multicellular organisms all the cells have a similar basic structure and perform a similar basic life activities. However, they become specialised to form components of different structures that perform different functions. Cells are first organised into tissues, each with a specific function, e.g., contraction by the muscular tissue. Tissues are organised to form organs with each organ performing a specific task, e.g.’ heart, kidney, lung, stomach, eyes. Organs are grouped into organ systems, each with a major function, e.g.’ circulatory, system, excretory system, respiratory system, digestive system, skeletal system. A living organism has a number of organ systems. Thus, in all such organisational complexity, cell remains the basic building unit of the organism.
There are six major controls of the climate of any place viz., latitude, altitude, pressure and wind system, distance from the sea, ocean currents and relief features. (i) Latitude: Due to the curvature of the earth, the amount of solar energy received differs according to latitude. Thus, air temperRead more
There are six major controls of the climate of any place viz., latitude, altitude, pressure and wind system, distance from the sea, ocean currents and relief features.
(i) Latitude: Due to the curvature of the earth, the amount of solar energy received differs according to latitude. Thus, air temperature decreases from the equator towards the poles.
(ii) Altitude: At the higher altitude, the atmosphere becomes less dense and temperature decreases. The hills are, therefore, cooler during summers.
(iii) Pressure and wind system: It depends on the latitude and altitude of the place. Thus, it too influences the temperature and rainfall pattern.
(iv) Distance from sea: Sea has its moderating influence on climate. As such when the distance from the sea increases, people experience extreme weather conditions.
(v) Ocean currents: These currents affect the climate of the coastal areas because any coastal area with warm or cold currant will be warmed currant if the winds are onshore.
(vi) Relief: Relief too affects the climate of a place. For example, high mountains act as barriers for cold and hot winds. They may cause precipitation if they are high enough and lie in the path of rain-bearing winds. The leeward side of mountains remains dry.
(i) The monsoon are not steady winds but are pulsating in nature (ii) The duration of the monsoon in between 100-120 days from early June to mid September (iii) The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June. (iv) Subsequently, it divides into twoRead more
(i) The monsoon are not steady winds but are pulsating in nature
(ii) The duration of the monsoon in between 100-120 days from early June to mid September
(iii) The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June.
(iv) Subsequently, it divides into two branches-the Arabian Sea branch and the Bay or Buna branch.
(v) The Arabian branch reaches Mumbai on approximately the 10h of June.
(vi) The Bay of Bengal branch arrives in Assam in the first week of The Inter mountains cause the monsoon winds to detect towards the west over the Ganga plains
(vii) The Arabian Sea branch after reaching Saurashtra and the control part of the country Boy mid June, join the Bay Bengal branch over the north were part of the Gang plans.
(viii) The Bay of Bengal branch reaches Delhi by the end of June (tentative date is 29th June).
(ix) Monsoons reach western UP, Punjab, Haryana and eastern Rajasthan in the first week of July.
(x) By mid-July, the monsoon reaches Himachal Pradesh and the rest of the country.
The main features of the hot weather season are as follows: (i) The hot, weather season remains from March to May. (ii) The temperature rises at different latitudes i.e., in March highest is about 38° Celsius on the Deccan Plateau, Gujarat and Madhya Pradesh 42° Celsius in April and 45° celsius in MRead more
The main features of the hot weather season are as follows:
(i) The hot, weather season remains from March to May.
(ii) The temperature rises at different latitudes i.e., in March highest is about 38° Celsius on the Deccan Plateau, Gujarat and Madhya Pradesh 42° Celsius in April and 45° celsius in May in northwestern parts of the country.
(iii) In peninsular India, temperatures remain lower due to the moderating influence of the oceans.
(iv) There is rising temperature and falling air pressure in the northern part of the country.
(v) A striking feature is the ‘loo’. These are strong, gusty, hot and dry winds.
(vi) Dust storms are very common during the month of May in northern India.
(vii) It is a season for localised thunder-storms, associated with violent winds, torrential downpours, often accompanied by hail. In West Bengal, these storms are called “Kaal Baisakhi”.
(viii) Towards the close of the summer season, pre-monsoon showers are common especially in Kerala and Karnataka. They help in the early ripening of mangoes and are often referred to as ‘mango showers’.
Write the name of different plant parts in which chloroplast, chromoplast and leucoplasts are present.
1. Chromoplast: Flower (petals) and fruits 2. Chloroplast : Green leaves and green parts. 3. Leucoplast : Root and underground stem.
1. Chromoplast: Flower (petals) and fruits
See less2. Chloroplast : Green leaves and green parts.
3. Leucoplast : Root and underground stem.
Bacteria do not have chloroplasts but some bacteria are photoautotrophic in nature and perform photosynthesis. Which part of bacterial cell perform this?
Photoautotrophic bacteria posses photosvnthetic pigments inside small vesicles which may be attached to the plasma membrane.
Photoautotrophic bacteria posses photosvnthetic pigments inside small vesicles which may be attached to the plasma membrane.
See lessIf you are provided with some vegetables to cook, you generally add salt into vegetables during cooking process. After adding salt, vegetables release water. What mechanism is responsible for this?
On adding salt, Vegetables release water due to exosmosis. Exosmosis occurs whenever the external medium is hypertonic as compared to the osmotic concentration inside living cells.
On adding salt, Vegetables release water due to exosmosis. Exosmosis occurs whenever the external medium is hypertonic as compared to the osmotic concentration inside living cells.
See lessWe eat food composed of all the nutrients such as carbohydrates, fats, vitamins, minerals and water. After digestion, they are absorbed in the form of glucose, amino acids, fatty acids, glycerol, etc. what mechanisms are involved in the absorption of digested food and water?
Digested food is taken in the intestinal cells by the following process: (i) Glucose, amino acids and some ions - Active transport. (ll) Fatty acids, glycerol - Diffusion (Passive transport) (iii) Water - Osmosis.
Digested food is taken in the intestinal cells by the following process:
See less(i) Glucose, amino acids and some ions – Active transport.
(ll) Fatty acids, glycerol – Diffusion (Passive transport)
(iii) Water – Osmosis.
A person takes concentrated solution of salt. After some time he starts vomiting. What is the phenomenon responsible for such a situation? Explain
Concentrated salt solution is a hypertonic solution so causes irritation and excessive dehydration in the wall of alimentary canal dr.ie to exosmosis. There is uncomfortable stretching which causes reverse movements and hence vomiting.
Concentrated salt solution is a hypertonic solution so causes irritation and excessive dehydration in the wall of alimentary canal dr.ie to exosmosis. There is uncomfortable stretching which causes reverse movements and hence vomiting.
See lessWhy does the skin of your fingers shrinks when you was clothes for a long time?
Clothes are washed with soap or detergent solution. This solution is hypertonic as compared to osmotic concentration of our skin cells. The washing solution, therefore, results in exosmosis in the skin cells that come in contact with it for some time. Due to this reason, the skin over the fingers shRead more
Clothes are washed with soap or detergent solution. This solution is hypertonic as compared to osmotic concentration of our skin cells. The washing solution, therefore, results in exosmosis in the skin cells that come in contact with it for some time. Due to this reason, the skin over the fingers shrinks while washing
See lessclothes for a long time.
Do you agree that ”A cell is a building unit of an organism’’?
Yes, cell is a building unit of every living organism as every living being is made up of one or more cells. For example, in unicellular or acellular organisms, the single cell performs all the functions of life. In multicellular organisms all the cells have a similar basic structure and perform a sRead more
Yes, cell is a building unit of every living organism as every living being is made up of one or more cells. For example, in unicellular or acellular organisms, the single cell performs all the functions of life. In multicellular organisms all the cells have a similar basic structure and perform a similar basic life activities. However, they become specialised to form components of different structures that perform different functions. Cells are first organised into tissues, each with a specific function, e.g., contraction by the muscular tissue. Tissues are organised to form organs with each organ performing a specific task, e.g.’ heart, kidney, lung, stomach, eyes. Organs are grouped into organ systems, each with a major function, e.g.’ circulatory, system, excretory system, respiratory system, digestive system, skeletal system. A living organism has a number of organ systems. Thus, in all such organisational complexity, cell remains the basic building unit of the organism.
See lessDescribe major controls of the climate of any place.
There are six major controls of the climate of any place viz., latitude, altitude, pressure and wind system, distance from the sea, ocean currents and relief features. (i) Latitude: Due to the curvature of the earth, the amount of solar energy received differs according to latitude. Thus, air temperRead more
There are six major controls of the climate of any place viz., latitude, altitude, pressure and wind system, distance from the sea, ocean currents and relief features.
See less(i) Latitude: Due to the curvature of the earth, the amount of solar energy received differs according to latitude. Thus, air temperature decreases from the equator towards the poles.
(ii) Altitude: At the higher altitude, the atmosphere becomes less dense and temperature decreases. The hills are, therefore, cooler during summers.
(iii) Pressure and wind system: It depends on the latitude and altitude of the place. Thus, it too influences the temperature and rainfall pattern.
(iv) Distance from sea: Sea has its moderating influence on climate. As such when the distance from the sea increases, people experience extreme weather conditions.
(v) Ocean currents: These currents affect the climate of the coastal areas because any coastal area with warm or cold currant will be warmed currant if the winds are onshore.
(vi) Relief: Relief too affects the climate of a place. For example, high mountains act as barriers for cold and hot winds. They may cause precipitation if they are high enough and lie in the path of rain-bearing winds. The leeward side of mountains remains dry.
Write a note on the onset of the monsoon.
(i) The monsoon are not steady winds but are pulsating in nature (ii) The duration of the monsoon in between 100-120 days from early June to mid September (iii) The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June. (iv) Subsequently, it divides into twoRead more
(i) The monsoon are not steady winds but are pulsating in nature
See less(ii) The duration of the monsoon in between 100-120 days from early June to mid September
(iii) The monsoon arrives at the southern tip of the Indian peninsula generally by the first week of June.
(iv) Subsequently, it divides into two branches-the Arabian Sea branch and the Bay or Buna branch.
(v) The Arabian branch reaches Mumbai on approximately the 10h of June.
(vi) The Bay of Bengal branch arrives in Assam in the first week of The Inter mountains cause the monsoon winds to detect towards the west over the Ganga plains
(vii) The Arabian Sea branch after reaching Saurashtra and the control part of the country Boy mid June, join the Bay Bengal branch over the north were part of the Gang plans.
(viii) The Bay of Bengal branch reaches Delhi by the end of June (tentative date is 29th June).
(ix) Monsoons reach western UP, Punjab, Haryana and eastern Rajasthan in the first week of July.
(x) By mid-July, the monsoon reaches Himachal Pradesh and the rest of the country.
Explain the features of the hot weather season (summer).
The main features of the hot weather season are as follows: (i) The hot, weather season remains from March to May. (ii) The temperature rises at different latitudes i.e., in March highest is about 38° Celsius on the Deccan Plateau, Gujarat and Madhya Pradesh 42° Celsius in April and 45° celsius in MRead more
The main features of the hot weather season are as follows:
See less(i) The hot, weather season remains from March to May.
(ii) The temperature rises at different latitudes i.e., in March highest is about 38° Celsius on the Deccan Plateau, Gujarat and Madhya Pradesh 42° Celsius in April and 45° celsius in May in northwestern parts of the country.
(iii) In peninsular India, temperatures remain lower due to the moderating influence of the oceans.
(iv) There is rising temperature and falling air pressure in the northern part of the country.
(v) A striking feature is the ‘loo’. These are strong, gusty, hot and dry winds.
(vi) Dust storms are very common during the month of May in northern India.
(vii) It is a season for localised thunder-storms, associated with violent winds, torrential downpours, often accompanied by hail. In West Bengal, these storms are called “Kaal Baisakhi”.
(viii) Towards the close of the summer season, pre-monsoon showers are common especially in Kerala and Karnataka. They help in the early ripening of mangoes and are often referred to as ‘mango showers’.