A leaf is
an above-ground plant organ
and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. … Leaves come in many shapes and sizes.
What is called leaf?
A leaf (plural leaves) is the principal lateral appendage of the vascular plant stem, usually borne above ground and specialized for photosynthesis. … Leaves are collectively referred to as
foliage
, as in “autumn foliage”.
What is leaf answer?
A leaf is
the green, flat lateral outgrowth in plants
. They come in different shapes, sizes, and colors, and are generally dorso-ventrally flattened and thin. They are the main organ responsible for photosynthesis as they contain chlorophyll.
What is in a leaf?
A leaf is made of
many layers that are sandwiched between two layers of tough skin cells
(called the epidermis). The epidermis also secretes a waxy substance called the cuticle. These layers protect the leaf from insects, bacteria, and other pests. Among the epidermal cells are pairs of sausage-shaped guard cells.
What is a leaf for Class 6?
The leaf is the most important part which
enables the plant to make its own food
. Leaves are of different shapes, sizes, and colour which are attached to the stem by the petiole. Most of the leaves are green in colour because of the green pigment in the leaf called the chlorophyll.
What are the 4 parts of a leaf?
- Each leaf typically has a leaf blade ( lamina ), stipules, a midrib, and a margin.
- Some leaves have a petiole, which attaches the leaf to the stem; leaves that do not have petioles are directly attached to the plant stem and are called sessile leaves.
What are the 3 main functions of leaves?
The leaves perform three main functions such as
manufacture of food, interchange of gases between the atmosphere and the plant body and evaporation of water
.
What is the main function of a leaf?
The main function of a leaf is
to produce food for the plant by photosynthesis
. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy.
How do you describe a leaf?
A leaf is an above-ground plant organ and it is green. Its main functions are
photosynthesis and gas exchange
. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close.
What are the uses of leaves?
The main job of a leaf is
to make food
(see left navigation for a separate page about this) for a plant. Leaves do this by using sunlight for energy to take apart water from the ground and carbon dioxide from the air. Leaves use parts of water and carbon dioxide to make sugar.
What are the 4 functions of a leaf?
- Photosynthesis.
- transpiration.
- guttation.
- storage.
What are the 7 parts of a leaf?
- Parts of a Leaf. Generally, leaf base, petiole, and lamina, together form the main parts of a leaf. …
- Venation. Venation is defined as the arrangement of veins and the veinlets in the leaves. …
- Recommended Video: 1,069. …
- Simple Leaf. …
- Compound Leaf. …
- Storage Leaves. …
- Leaf Tendrils. …
- Leaf Spines.
What is the leaf emoji?
The Leaf Fluttering in the Wind emoji
depicts one or two green leaves being blown by the wind
. It is commonly used to represent leaves, good weather, spring and summer, windy days, plants, and marijuana.
What is a Flower Class 6?
Flowers are the colourful and beautiful part of the plant that are of various shapes, sizes, and colours. They are
the reproductive part of the plant
. Important! Not all of the flowers are colourful (brightly coloured).
What is the function of veins in a leaf class 6?
II.
Veins are composed of xylem and phloem cells embedded in parenchyma, sometimes sclerenchyma, and surrounded by bundle sheath cells. The vein xylem
transports water from the petiole throughout the lamina mesophyll
, and the phloem transports sugars out of the leaf to the rest of the plant.
What are two functions of leaves?
The two main functions performed by the leaf are
photosynthesis and transpiration
. Photosynthesis is the process by which green plants make their food from carbon dioxide and water in the presence of sunlight.
