Internal Leaf Parts & Function
Lower epidermis - outmost tissue on the lower side of the leaf; protects the leaf
Upper epidermis - outmost tissue on the upper side of the leaf; protects the leaf
Palisade layer - rows of elongated cells in the upper center of leaf; site of photosynthesis
Cuticle - waxy layer on the covering the epidermis; holds in moisture, prevents too much absorption of water
Stoma - opening between the guard cells; allows for gas exchange and some water
Guard cells - surround the stoma; control the opening and closing of the stoma
Vein - supply support for the leaf; contain the xylem and the phloem
Spongy layer - irregular shaped cells in lower center of leaf; absorbs gas & some water
Air space - space in the spongy layer; contain gases
Xylem - found in the vein; transports minerals and water from roots to shoots
Phloem - found in the vein; transports sugar & other products of photosynthesis from leaves to other parts of the plant
Chloroplast - cells in the leaves that contain chlorophyll; trap light energy and convert it to chemical energy
Mesophyll - all of the middle tissue of the leaf
Cells are the basic structural and physiological units of plants. Most plant reactions (cell division, photosynthesis, respiration, etc.) occur at the cellular level. Plant tissues (meristems, xylem, phloem, etc.) are large, organized groups of similar cells that work together to perform a specific function. A unique feature of plant cells is that they are readily totipotent. In other words, almost all plant cells retain all of the genetic information (encoded in DNA) necessary to develop into a complete plant. This characteristic is the main reason that vegetative (asexual) reproduction works. For example, the cells of a small leaf cutting from an African violet have all of the genetic information necessary to generate a root system, stems, more leaves, and ultimately flowers. Specialized groups of cells called meristems are a plant's growing points. Meristems are the site of rapid, almost continuous cell division. These cells either continue to divide or begin to differentiate into other tissues and organs. How they divide, and whether they ultimately become a tissue or an organ, are controlled by a complex array of internal plant hormones but also can be influenced by environmental conditions. In many cases, you can manipulate meristems to make a plant do something you want, such as change its growth pattern, flower, alter its branching habit, or produce vegetative growth.
Leaf Parts & Function
Lower epidermis - outmost tissue on the lower side of the leaf; protects the leaf
Upper epidermis - outmost tissue on the upper side of the leaf; protects the leaf
Palisade layer - rows of elongated cells in the upper center of leaf; site of photosynthesis
Cuticle - waxy layer on the covering the epidermis; holds in moisture, prevents too much absorption of water
Stoma - opening between the guard cells; allows for gas exchange and some water
Guard cells - surround the stoma; control the opening and closing of the stoma
Vein - supply support for the leaf; contain the xylem and the phloem
Spongy layer - irregular shaped cells in lower center of leaf; absorbs gas & some water
Air space - space in the spongy layer; contain gases
Xylem - found in the vein; transports minerals and water from roots to shoots
Phloem - found in the vein; transports sugar & other products of photosynthesis from leaves to other parts of the plant
Chloroplast - cells in the leaves that contain chlorophyll; trap light energy and convert it to chemical energy
Mesophyll - all of the middle tissue of the leaf
Leaf Parts & Function
Lower epidermis - outmost tissue on the lower side of the leaf; protects the leaf
Upper epidermis - outmost tissue on the upper side of the leaf; protects the leaf
Palisade layer - rows of elongated cells in the upper center of leaf; site of photosynthesis
Cuticle - waxy layer on the covering the epidermis; holds in moisture, prevents too much absorption of water
Stoma - opening between the guard cells; allows for gas exchange and some water
Guard cells - surround the stoma; control the opening and closing of the stoma
Vein - supply support for the leaf; contain the xylem and the phloem
Spongy layer - irregular shaped cells in lower center of leaf; absorbs gas & some water
Air space - space in the spongy layer; contain gases
Xylem - found in the vein; transports minerals and water from roots to shoots
Phloem - found in the vein; transports sugar & other products of photosynthesis from leaves to other parts of the plant
Chloroplast - cells in the leaves that contain chlorophyll; trap light energy and convert it to chemical energy
Mesophyll - all of the middle tissue of the leaf
A leaf has petiole, lamina, apex and margins.
The true leaf must have an axillary bud. Sometimes cladode & phylloclade also look like leaf but these are without an axillary bud hence not true leaf. Functions of laf include- photosynthesis, transpiration and several other functions in modified leaves such as climbing by tendrils made out of leaf lamina and spines for protection etc.
I NEED SOME one to sex me
what is the function of each of the following external parts of a leaf?
The outer layer of a leaf is called the epidermis (from a Greek word meaning "over-skin"). Its function is to protect the insides of the leaf, which carry out the chemical reaction known as photosynthesis.
list the parts of the nephron and describe the function of each part
you need an structure and each part of it has a function like an animal formated or structured by cells and each cell has to adapt to its own function
Because the leaf structure do not have the ability to store the starch molecules
what is the function of each of the following external parts of a leaf?
What is the function of each part of the lever
What is the function of each part of the lever
function of capillaries in leaf
give the meaning of each part
The outer part of the leaf is called the cuticle. It is a waxy layer and does not comprise of live cells. It's function is to prevent the leaf from desiccation (drying out).
The outer layer of a leaf is called the epidermis (from a Greek word meaning "over-skin"). Its function is to protect the insides of the leaf, which carry out the chemical reaction known as photosynthesis.
The function of the leaf blade is to abosorb light and make food.
The function of the veins in a leaf is to transport food to different parts of the leaf
list the parts of the nephron and describe the function of each part
The main function for a leaf cell is transforming the energy from sun into nutrients.
Leaf called the jack of all trades because it can perform all the function in plants. Leaf produces food,stores it, and transport it to the other part of the plant.