Question:
What happens in polio disease?
Answer:
During early stages of childhood, when Polio virus attacks it kills motor neurons. Also nerve cells lose their ability to reproduce new nerve cells. This damage is permanent and the affected kid is unable to walk properly in his life.
Tissues
Q 1.
Which tissues are called covering or protective tissues?
Q 2.
Which tissues are responsible for the axial growth of plants?
Q 3.
What is main purpose of stratified epithelium?
Q 4.
Where do we find intercalary meristem?
Q 5.
Which connective tissue connects bones to muscles?
Q 6.
Where do you find collenchyma tissues in plants?
Q 7.
Which plant tissues are often called as stone cells?
Q 8.
Where do we find Areolar tissue? What are its functions?
Q 9.
Why do animals tissues require more energy as compared to plant tissues?
Q 10.
Why are Xylem and Phloem known as conducting tissues?
Q 11.
How are muscles tissues related to nerve cells?
Q 12.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 13.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 14.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 15.
What are constituents of blood tissue?
Q 16.
Fill In the Blanks :
Meristematic cells possess the power of cell ______.
Q 17.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 18.
How does epidermis help xerophytes?
Q 19.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 20.
Where do you find simple squamous in an animal body?
Q 21.
What does plasma contain?
Q 22.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 23.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 24.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 25.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 26.
Why do plants have more dead tissues as compared to animals?
Q 27.
What does a neuron look like?
Q 28.
What are the identifying features of collenchyma tissue?
Q 29.
What is aerenchyma?
Q 30.
Which tissue is known as living mechanical tissue?
Q 31.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 32.
Name the chemical released by cork cells?
Q 33.
How are complex tissues different from simple tissues?
Q 34.
Where do we find epithelial tissues on animal body?
Q 35.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 36.
What is the shape of simple squamous tissue?
Q 37.
Name the following:
Connective Tissue with a fluid matrix
Q 38.
Name the following:
Isodiametric cells, thin cell wall, large vacuoles, living, packing tissue in plants
Q 39.
Where is apical meristem found?
Q 40.
Which tissue makes up the husk of coconut?
Q 41.
What are the constituents of phloem?
Q 42.
List the characteristics of meristematic tissues.
Q 43.
What is the structure and nature of Parenchyma tissue?
Q 44.
Where do you find Parenchyma cells in Plants?
Q 45.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 46.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 47.
What is the role of xylem tissue?
Q 48.
List functions of phloem tissue?
Q 49.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 50.
Why are Xylem and Phloem called as vascular tissues?
