Tuesday, March 1, 2016

ZEERA-TEXT

ENVIRONMENTAL STUDIES


What do spices give us?
Spices, like everything else, are made of chemicals. Spices give us health, colour and fragrance and most of all they keep life from getting monotonous. Spices hide in them our traditions and culture.

let’s study about some spices which we uses in our daily kitchen.



I am a small and skinny chap
Sometimes I am brown and
sometime black,
Added to hot oil and ghee
I spread my fragrance all around me,
When I am roasted.
Curd and jaljeera are favorite to me.
Think and tell me who am I?
Tell me quickly, who am I?- zeera

Cumin seeds are also known as jeera, zeera, seeragam or comino. Cumin are oblong shaped, pale or usually dark brown seeds in color. Indian recipes are greatly flavored with these cumin seeds. Cumin seeds is the form of aromatic spice with the bitter taste and very warm flavor. Cumin seeds can be used as whole, crushed or grounded one.

Uses:
Whole cumin seeds are mostly used for tempering the various dals and jeera rice. Cumin seeds are widely used for different preparations of gravies and curry recipes. The Salads and various vegetarian recipes can be flavored with the tempering cumin seeds. 
They are mostly used for making butter milk (chas), lassi, soups and stews. Whole cumin seeds are great to use along with the whole garam masala for bringing the natural flavor in veg and non-veg dishes. Cumin seeds are highly used as whole, fried, toasted, roasted or powdered. You can make delicious jeera rice by tempering few cumin seeds in the butter.

THANKYOU, 
NANDITHA.

BLACK PEPPER-TEXT



What do spices give us?
Spices, like everything else, are made of chemicals. Spices give us health, colour and fragrance and most of all they keep life from getting monotonous. Spices hide in them our traditions and culture.
let’s study about some spices which we uses in our daily kitchen.


Small and round like a pearl,
I am black when I am whole.
I can be powdered coarse or fine
A sharp and spicy taste is mine,
Whether it is salty or sweet
I am added as a special treat,
Think and tell me who am I?
Tell me quickly, who am I?- pepper-kalimirchi


Black pepper comes from the pepper plant, a smooth woody vine that can grow up to 33 feet in hot and humid tropical climates. They begin to bear small white clustered flowers after 3 to 4 years and develop into berries known as peppercorns. Ground peppercorns produce the spice we call pepper


Uses:
Black pepper stimulates the taste buds in such a way that an alert is sent to the stomach to increase hydrochloric acid secretion, thereby improving digestion. Hence, adding a sprinkling of freshly ground pepper to your foods not only adds to the flavour but improves digestion as well. 
It is also an excellent source of manganese, a very good source of iron and vitamin K, and a good source of dietary fibre.



 THANKYOU,

TURMERIC-TEXT






What do spices give us?


Spices, like everything else, are made of chemicals. Spices give us health, colour and fragrance and most of all they keep life from getting monotonous. Spices hide in them our traditions and culture.
let’s study about some spices which we uses in our daily kitchen.
 Grind me and powder me –
To make your food look yellow,
I am mixed in oil by granny
And applied to wounds quickly,
I heal all wounds – big and small,
That is why I am loved by all!
Think and tell me who am I?
Tell me quickly, who am I?-  Turmeric (Haldi)


Turmeric powder is a bright yellow spice powder made from dried turmeric rhizomes. Turmeric or haldi is one ingredient in your kitchen that holds a remedy for almost all illness you are likely to encounter. A staple spice in almost all Indian households. t has been used by  Ayurvedic and Unani practitioners in India from time immemorial.


Turmeric is an indispensable spice, which imparts a musky flavour and yellow colour to curries. Almost all Indian vegetable dishes use turmeric either separately or as part of the masala (spice mixture). It is also used in recipes comprising rice, lentils and dry beans. A small pinch of turmeric powder would is enough to add a pleasant orange-yellow hue to salad dressings. 
THANK YOU,

RED CHILLY-TEXT



What do spices give us?
Spices, like everything else, are made of chemicals. Spices give us health, colour and fragrance and most of all they keep life from getting monotonous. Spices hide in them our traditions and culture.
let’s study about some spices which we uses in our daily kitchen.

I can be powdered fine
To make food hot and spicy,
If too much of me is added
I make you gasp – shheee… shheee…
Your eyes and nose begin to water
And you cry!
Think and tell me who am I?
Tell me quickly, who am I- Red Chilly


Red Chili Powder is also known as lal mirch powder. This is one of the most powerful hot spice which can easily affect the ears, tongue and stomach. Indian food or Indian recipes are greatly influenced with this  chili powder. You can easily get red chili powder in the grocery stores.


Uses
Chilli powder is the base for making any flavored, hot and spicy food.
The Chilli powder is greatly used for various types of veg and non-veg  food materials. It is highly incorporated in various salads  and tomato based sauces.The ethnic dishes are mostly imparted with the flavor and heat blend of the chilli powder.

THANKYOU,

Monday, February 29, 2016

EXCRETION IN PLANTS-TEXT



Excretionis the elimination of wastes that are formed during the metabolism of various substances in the body.

The main substances excreted are nitrogenous substances like Ammonia, Urea and Uric acid. Nitrogenous wastes are formed in the metabolism of amino acids and nucleic acids.

Along with these excess water, certain salts and organic substances are also excreted. The main purpose of excretion is to maintain ionic balance in the body.

If the metabolic wastes are not discharged from the body, they become toxic and harm the body.

 All the animals do not excrete the type of nitrogenouswastes.
Some animals, like crabs excrete ammonia, while frogs and man excrete urea, insects, reptiles and birds excrete uric acid.

The type of the product excreted may change during different stages of development and availability of water.

Aquatic animals prefer to excrete ammonia while animals like reptiles and birds, to whom water is very scarce, excrete uric acid.


 EXCRETION AND RELEASE OF SUBSTANCES IN PLANTS:
You have learnt that a variety of end products are formed during metabolism and of these nitrogenous wastes are important. Plants do not have any specific organ to excrete these wastes. As in animals, carbon dioxide, water, ammonia and other nitrogenous wastes are also formed in plants.
In the plants, carbon dioxide released during respiration is sent out through stomata of leaves. Due to this, the heat in the plant body is reduced.

 Even when leaves are absent, as in the germinating seeds. Carbon dioxide formed during respiration is released into the atmosphere. Plants have the capacity to utilize the by-products of one metabolic activity as raw materials for another metabolic activity.

oxygen released during photosynthesis is utilized for respiration. Carbon dioxide released during respiration is utilized for photosynthesis.
Plants can convert nitrogen and ammonia into nitrates. However, several compounds are synthesized by the plants for their own use, especially for defence.

 As plants are sessile(do not have the capacity to move), they cannot defend from the predators by running away.
Majority of plants do not have organs for protection against the herbivores. Hence, several plants prepare chemicals and store them in roots, leaves, seeds and even in stem.

Most of these chemicals are unpleasant to taste and hence herbivores usually do not prefer to eat such plants. Some of the chemicals are toxic and may even kill the animal that eats them.

 Some of the plants secrete chemicals when injured. These chemicals  seal the wound and help the plant to recover from the injury.

Though plants produce these chemicals for their use, man has found other uses for these chemicals and benefited immensely from these chemicals.

 Some of the plants release attractants for other Organisms which will help the plant in pollination, seed dispersal or even in their nutrition.
For example, plants having root nodules, secrete chemicals to attract rhizobia in to the surroundings of the roots and form a symbiotic relationship with the rhizobium. These compounds are called secondary metabolites.
 The biochemical substances produced in plants are of two types-primary metabolites and secondary metabolites, Food materials like carbohydrates, fats and proteins are the primary metabolites.

 Alkaloids, Tannins, Resins, Gums, Latex etc., are some of the secondary metabolites in plants.

Alkaloids:
These are nitrogenous by products and poisonous. These are stored in different parts of the plant. Some of the alkaloids are used in medicines. Common alkaloids, the plant and the part in which they occur are give below……..

Tannins:
Tannins are carbon compounds. These are stored in different parts of a plant of a plant and are deep brown in colour. Tannins are used in tanning of leather and in medicines e.g. cassia, acacia.

Resins:
Occur mostly in gymnosperms in passages called resin passages. These are used in varnishes-e.g pinus.

Gums:
Plants like Neem, Acacia secrete a sticky substance called gum when branches are cut. The gums swell absorbing water and help in the healing of cut parts of a plant. Economically, gums are valuable being used as adhesive and binding agents, in the preparation of medicines, foods etc.

Latex:
Latex is the milky white substance by plants belonging to Euphorbiaceae, Apocyanaceae. Asclepiadaceae and papvaraceae. Latex is stored in latex cells or latex vessels. From the latex of Hevea braziliensis (rubber plant) rubber is prepared.

 Nitrogenous substances are also found in the walls of pollen grains. These are protein substances and when they enter our body, they cause allergy. Hence, they are called allergins. They cause skin allergy(urticaria) asthma etc.

 Aromatic oils and scents occur in the leaves of lemon grass, ocimum, eucalyptus etc.

THANKYOU,

EXCRETION IN PLANTS -PART 2-TEXT




Alkaloids, Tannins, Resins, Gums, Latex etc., are some of the secondary metabolites in plants.
These are nitrogenous by products and poisonous. These are stored in different parts of the plant. Some of the alkaloids are used in medicines. Common alkaloids, the plant and the part in which they occur are give below……..

Tanninsare carbon compounds. These are stored in different parts of a plant of a plant and are deep brown in colour. Tannins are used in tanning of leather and in medicines e.g. cassia, acacia.


Occur mostly in gymnosperms in passages called resin passages. These are used in varnishes-e.g pinus.

Plants like Neem, Acacia secrete a sticky substance called gum when branches are cut. The gums swell absorbing water and help in the healing of cut parts of a plant. Economically, gums are valuable being used as adhesive and binding agents, in the preparation of medicines, foods etc.

Latex is the milky white substance by plants belonging to Euphorbiaceae, Apocyanaceae. Asclepiadaceae and papvaraceae. Latex is stored in latex cells or latex vessels. From the latex of Hevea braziliensis (rubber plant) rubber is prepared.

 Nitrogenous substances are also found in the walls of pollen grains. These are protein substances and when they enter our body, they cause allergy. Hence, they are called allergins. They cause skin allergy(urticaria) asthma etc.

 Aromatic oils and scents occur in the leaves of lemon grass, ocimum, eucalyptus etc.

THANKYOU,