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During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose.

Glucose is used by plants for energy and to make other substances like cellulose and starch.

The sugar produced by photosynthesis can be converted into the sugar glucose.

Thousands of glucose molecules can be linked together to form the complex carbohydrate starch.

Starch is stored inside plant cells as grains.

The leaves of a plant make sugar during the process of photosynthesis.

The food prepared by the leaves is in the form of simple sugar called glucose.

This glucose is then sent to other parts of the plant.

The extra glucose is stored in the leaves of the plant in the form of starch.

Most plants use sunlight to get energy but Saprophytic plants are those types of the plant who get their energy from the dead or decaying material of the plant and animal.
The best example of saprophytic is mushroom, yeast, Rhizopus, and etc.
The best example of the saprophytic plant is Neiottia & Monotropa.

Epiphytes are plants which stay on other plant branches but do not depend on them for either water or food.

They obtain water from the atmospheric moisture and food by photosynthesis. They only depend on other plants for support.

The best-known epiphytic plants include mosses, orchids, and bromeliads such as Spanish moss .

Onion is a converted underground stem known as the Tunicated Bulb.

The other two types are Ginger and potato.

In onion the buckles are filled with juice and covered each other and form a bulb.

Many plants have underground modified stems that may be mistaken for roots. Examples of underground stems include corms, such as taro ,rhizomes, such as ginger and tubers, such as potatoes .

A group is a column of elements in the periodic table of the chemical elements.
Elements having same number of valence electrons are placed in the same group.
The number of periods in modern periodic table – 7.
The longest period – 6 th period .
The shortest period – 1 st period .
The horizontal columns are known as periods in the modern periodic table.
Elements having same number of shells are placed in the same period .

Radon is a chemical element with the symbol Rn and atomic number 86.

It is a radioactive, colorless, odorless, tasteless noble gas.

It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead and various other short-lived radioactive elements; radon itself is the immediate decay product of radium.

Tellurium is a chemical element with the symbol Te and atomic number 52.

It is a brittle, mildly toxic, rare, silver-white metalloid .

Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens.

Element having the meaning ‘Moon’ – Celenium

Element having the meaning ‘Sun’- Helium

Uranium is a very important element because it provides us with nuclear fuel used to generate electricity in nuclear power stations.
Uranium is naturally radioactive: Its nucleus is unstable, so the element is in a constant state of decay, seeking a more stable arrangement.
Uranium was the element that made the discovery of radioactivity possible.
U-235 concentrations can be used as fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines. It also can be used in nuclear weapons.
Atomic number of Uranium is 92.

The earliest attempt to classify the elements was in 1789, when Antoine Lavoisier grouped the elements based on their properties into gases, non-metals, metals and earths.

Modern periodic law had been given by- Moseley

Which one is known as father of periodic table-Mendeleev

In modern period table the number of period is-7

In modern periodic table the group number is- 18

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