What is leaf? Full explanation.

The leaf is a thin, broad, flat and green part of a plant which is attached to the stem (or branch). plural of leaf is leaves. A plant has a large number of leaves. Leaves of different plants have differe shapes and sizes, but all of them have the same basic structure.

A leaf consists mainly of two parts: lamina and petiole (see Figure 8). Lamina is commonly ke o as leaf blade and petiole is commonly known as leaf stalk. The broad, green part of the leaf is called lan th The thin stalk with which leaf is attached to the stem (or branch) is called 'petiole. There is a mid tr (main vein) in the centre of lamina (or leaf blade). A large number of veins spread out from the mid Rib to all the parts of the leaf. The mid-rib and veins consist of bundles of tiny tubes some of which carry water (and dissolved minerals) into the leaf, and others carry away the food from the leaf.

There are minute pores on the surface of a leaf (which are called stomata). Stomata are so small that we cannot see them with naked eyes. The stomata allow the gases to move in and out of the leaf. They also allow excess water vapour to go out of the leaf. The leaves of plants contain a green coloured pigment called 'chlorophyll'. Chlorophyll imparts green colour to the leaves. Chlorophyll can absorb (or trap) energy from sunlight.

The leaves of plants have three main functions:

(1) The leaves make food for the plant (by photosynthesis).

(ii) The leaves get rid of excess water from the plant(through transpiration).

(iii) The leaves carry out the process of respiration in plants (which is the production of energy from food).

What is WORD WIDE WEB?

WWW {WORD WIDE WEB} World Wide Web, which is also known as a Web, is a collection of web sites or web pages stored in web servers and connected to local computers through the internet. These websites contain text pages, digital images, audios, videos, etc. Users can access the content of these sites from any part of the world over the internet using their devices such as computers, laptops, cell phones, etc. The WWW, along with internet, enables the retrieval and display of text and media to your device. The building blocks of the Web are web pages which are formatted in HTML and connected by links called "hypertext" or hyperlinks and accessed by HTTP These links are electronic connections that link related pieces of information so that users can access t thihe desired information quickly. Hypertext offers the advantage to select a word or phrase from text and thus to access other pages that provide additional information related to that word or phrase.A web page is

What is computer basic information?

What might we at any point instruct you? PC Rudiments: What is a PC? What is a PC? A PC is an electronic gadget that controls data, or information. It can store, recover, and process information. You may definitely realize that you can utilize a PC to type reports, send email, mess around, and peruse the Internet. You can likewise utilize it to alter or make accounting sheets, introductions, and even recordings.Watch the video beneath to find out about various sorts of PCs.Searching for the old rendition of this video? You can in any case see it here. Equipment versus programming Before we discuss various sorts of PCs, we should discuss two things all PCs share for all intents and purpose: equipment and programming.Equipment is any essential for your PC that has an actual design, like the console or mouse. It additionally incorporates the PC's all's inside parts, which you can find in the picture underneath.seeing equipment .Programming is any arrangement of directions that

What are life process?

WHAT ARE LIFE PROCESSES? The maintenance functions of living organisms must go on even when they are not doing anything particular. Even when we are just sitting in class even if we are just asleep, this maintenance job has to go on The processes which together perform this maintenance job an We processes . Since these maintenance processes are needed to prevent damage and break-down energy is needed for them. This energy comes from outside the body of the mdhadual organism. So there must be a process to transfer a source of energy from outside the body of the organism which we call food, to the inside, a process we commonly call nutrition If the body size of the organisins is to grow, additional raw material wit also be needed from outside. Since life on earth depends on carbon- based molecules most of these food sources are also carbon-based Depending on the complexity of these carbon sources, different organisms can then use different kinds of nutritional processes The outside sourc

Study life

Search This Blog