Question 511 Mark
Name the plant from which commercial cork is obtained.
Answer
View full question & answer→Commercial cork is obtained from the cork oak tree.
Name the plant from which commercial cork is obtained.
Commercial cork is obtained from the cork oak tree.
Name the plant cell which is attached to the lateral side is dieve tube.
Companion cell is living cell which is attached to the lateral side of sieve tube.
Name the muscle which is commonly found in visceral organs.
Smooth muscle or unstriated muscle is commonly found in visceral organs.
Name the muscle which gets farigued soon.
Skeletal or striated muscle gets fatigued very soon. These are voluntary muscels.
Name the muscle of heart.
The muscle of heart is known as cardiac muscle.
Name the muscle fibre which contains intercalated discs.
Cardiac muscle fibre contains intercalated discs.
Name the conducting elements of phloem.
The cells of phloem are called sieve tubes. Sieve tubes are conducting element of phloem which is responsible for transportation of food.
Name any one structure on out body which bears ciliated epithelium.
Ciliated epithelium is found in respiratory tract.
Name a basic tissue which is present in plants but absent in animals.
Meristematic tissue is present in plants but absent in animals.
Multinucleate conditions is seen in:
Explanation:
The striated muscle cells are long, cylindrical, unbranched and multinucleate.
Is sieve tubes unicellular or multicullular?
Sieve tube is multicellular.
In which type of plants arenchyma is found? Give example.
In aquatic plants, large air cavities are present in parenchyma to give buoyancy to the plants to help them float. Such a parenchyma type is called aerenchyma.
How many types of conducting tissues are found in plants?
Two types of conducting tissues are found in plants- Xylem and Phloem.
Give one way in which it differs from parenchymatous cells.
Sclerenchyrna fibres are thick walled dead cells while parenchyma cells are thin walled living cells.
Give one main function of collenchyma?
Collenchyma is a simple permanent tissue which provides mechanical strength as well as flexibility to the plant organs.
Give one example of protective tissue in plants.
Cork is the example of protective tissue in the plants.
Give one example of (i) apical meristem and (ii) lateral meristem.
Apical meristem: Shoot apes.
Lateral meristem: Cambium.
Give one example of connective tissue in which matrix is solid?
Bone is a dense connective tissue in which matrix is solid.
Define the tissues.
A tissue is a group of cells of the same type or mixed type having a common origin and performing a common function.
Define simple tissue.
Simple tissue is made up of only one type of cells that carry out the same function.
Define complex tissue.
Tissue which is composed of two or more types of cells but contribute to a common function is called complex tissue.
Classify epithelial tissues on the basis of arrangements of layers.
On the basis of arrangement of layers, epithelial tissue is classified into two types:
A coverslip must always be places very gently while mounting in order to:
Explanation:
A coverslip must always be places very gently while mounting in order to avoid the entry of air bubbles.