Question:
What is myelin sheath? Where do we find it?
Answer:
Axons of nerve cell is covered by a sheath called myelin sheath. Myelin sheath prevents the leakage of nerve impulse ( a sort of electrical signal) from the axon.
Tissues
Q 1.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 2.
Which tissues are called covering or protective tissues?
Q 3.
Which connective tissue connects bones to muscles?
Q 4.
What is main purpose of stratified epithelium?
Q 5.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 6.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 7.
Which tissues are responsible for the axial growth of plants?
Q 8.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 9.
Where do we find epithelial tissues on animal body?
Q 10.
Name the following:
Isodiametric cells, thin cell wall, large vacuoles, living, packing tissue in plants
Q 11.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 12.
Where do we find Areolar tissue? What are its functions?
Q 13.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 14.
Why are Xylem and Phloem known as conducting tissues?
Q 15.
Where do you find simple squamous in an animal body?
Q 16.
Which plant tissue is considered to have played an important role in the survival of terrestrial plants?
Q 17.
Why are Xylem and Phloem called as vascular tissues?
Q 18.
What does plasma contain?
Q 19.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 20.
List the cellular elements of xylem tissue?
Q 21.
List functions of phloem tissue?
Q 22.
Name the following:
Tissues present in the brain
Q 23.
Name the following:
Plant tissue help in bending leaf stalk
Q 24.
Where do you find collenchyma tissues in plants?
Q 25.
Name the chemical released by cork cells?
Q 26.
How are complex tissues different from simple tissues?
Q 27.
What are identification marks of striated muscles when seen under microscope?
Q 28.
Do all cells respond to stimuli or this ability is possessed by nerve cells only?
Q 29.
What happens in polio disease?
Q 30.
Name the following:
Tissues present in lung alveoli
Q 31.
Name the following:
Supportive plant tissues containing stone cells.
Q 32.
Where do we find intercalary meristem?
Q 33.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 34.
What is the shape of cuboidal epithelium? Where do we find these tissues?
Q 35.
How will you identify Columnar epithelium? Where are these tissues located?
Q 36.
Where do we find nerve cells?
Q 37.
How are muscles tissues related to nerve cells?
Q 38.
Name the following:
Tissue that forms the inner lining of our mouth
Q 39.
Name the following:
Tissue that connects muscles to bone in humans
Q 41.
Where do you find Parenchyma cells in Plants?
Q 42.
Which plant tissues are often called as stone cells?
Q 43.
What is the primary surface tissue of the entire plant?
Q 44.
How does epidermis help xerophytes?
Q 45.
Based on functions performed, list the types of animal tissues.
Q 46.
What is the main function of cuboidal epithelium?
Q 47.
What is the common characteristic in different connective tissues?
Q 48.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 49.
Why are striated muscles called skeletal muscles?
Q 50.
Where do we find cardiac tissues? What are the functions of cardiac tissues?
