Question:
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Answer:
Fossils of plants show that vascular tissue appears 400 million years ago. It is believed that aquatic plants moved to terrestrial environment and adaptations like vascular tissue, protected seeds, true roots formation etc. helped in their survival.
- Vascular tissues transport water and minerals throughout a plant. because of this adaptation, water absorbed by roots is able to reach to different parts of the plant. Thus water balance is maintained properly inside plant body. Similarly, food prepared by leaves by photosynthesis is transported to all parts of the plants.
- Vascular tissue also provides structural support to the plant. Vascular tissues form a sort of skeleton and provides support to root, stem and leaves. It also enables plant to grow upright i.e. become taller.
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.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 14.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 15.
Name the following:
Human tissue that helps in the movement of ova in the fallopian tube.
Q 16.
List the cellular elements of xylem tissue?
Q 17.
Why do meristematic cells lack vacuoles?
Q 18.
Where do we find epithelial tissues on animal body?
Q 19.
Where blood is formed in our body?
Q 20.
What is the unit of nervous tissues?
Q 21.
How are muscles tissues related to nerve cells?
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.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 42.
Name different types of connective tissues?
Q 43.
What are constituents of blood tissue?
Q 44.
Which connective tissue connects bones to muscles?
Q 45.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 46.
What is myelin sheath? Where do we find it?
Q 47.
What is the utility of tissues in multi-cellular organisms?
Q 48.
Which tissue makes up the husk of coconut?
Q 49.
What does a neuron look like?
Q 50.
List the characteristics of meristematic tissues.
