Question:
List the functions of the epidermis.
Answer:
- protection against loss of water
- protection against mechanical injury.
- protection against infection (e.g. fungus infection).
- In roots, epidermis has hair like projects which increase the surface area for absorption of water and minerals.
Tissues
Q 1.
What are the identifying features of collenchyma tissue?
Q 2.
Which tissues are called covering or protective tissues?
Q 3.
What is main purpose of stratified epithelium?
Q 4.
Where do you find collenchyma tissues in plants?
Q 5.
Identify which of the following plant tissues are living or dead?
Apical Meristem, Parenchyma, Aerenchyma, Collenchyma, Sclereids, Tracheids, Xylem Fibres, Xylem Parenchyma, Phloem fibre, Phloem Parenchyma, Vessel, Sieve Tubes
Q 6.
Which plant tissues are often called as stone cells?
Q 7.
How are complex tissues different from simple tissues?
Q 8.
How does epidermis help xerophytes?
Q 9.
Why are Xylem and Phloem known as complex permanent tissues?
Q 10.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 11.
What is the common characteristic in different connective tissues?
Q 12.
How long a nerve cell can be?
Q 13.
How are muscles tissues related to nerve cells?
Q 14.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 15.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 16.
Name the following:
Human tissue that helps in the movement of ova in the fallopian tube.
Q 17.
List the cellular elements of xylem tissue?
Q 18.
Why do meristematic cells lack vacuoles?
Q 19.
Where do we find epithelial tissues on animal body?
Q 20.
Where blood is formed in our body?
Q 21.
What is the unit of nervous tissues?
Q 22.
Name the following:
Supportive plant tissues containing stone cells.
Q 23.
Give three features of cardiac muscles.
Q 24.
Where do you find Parenchyma cells in Plants?
Q 25.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 26.
Name two types of complex tissues.
Q 27.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 28.
Which plant tissue is considered to have played an important role in the survival of terrestrial plants?
Q 29.
How will you identify Columnar epithelium? Where are these tissues located?
Q 30.
What is Haematology?
Q 31.
Why are striated muscles called skeletal muscles?
Q 32.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 33.
Name the following:
Connective Tissue with a fluid matrix
Q 34.
Name the following:
Plant tissue help in bending leaf stalk
Q 35.
Name the following:
Type of Connective Tissue having matrix made of calcium phosphate
Q 37.
Which tissues are responsible for the secondary growth of plants?
Q 38.
List the functions of the epidermis.
Q 39.
Are Collenchyma tissues present in roots of the plants?
Q 40.
Name the chemical released by cork cells?
Q 41.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 42.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 43.
Name different types of connective tissues?
Q 44.
What are constituents of blood tissue?
Q 45.
Which connective tissue connects bones to muscles?
Q 46.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 47.
What is myelin sheath? Where do we find it?
Q 48.
What is the utility of tissues in multi-cellular organisms?
Q 49.
Which tissue makes up the husk of coconut?
Q 50.
What does a neuron look like?
