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.
Which tissues are called covering or protective tissues?
Q 2.
Why are Xylem and Phloem known as conducting tissues?
Q 3.
Where do you find collenchyma tissues in plants?
Q 4.
What is the role of xylem tissue?
Q 5.
Why are Xylem and Phloem called as vascular tissues?
Q 6.
What is the main function of cuboidal epithelium?
Q 7.
What are the identifying features of collenchyma tissue?
Q 8.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 9.
Which plant tissues are often called as stone cells?
Q 10.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 11.
What is main purpose of stratified epithelium?
Q 12.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 13.
How long a nerve cell can be?
Q 14.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 15.
What do you mean by 'Differentiation' in plant tissues?
Q 16.
Why are Xylem and Phloem known as complex permanent tissues?
Q 17.
Name the constituents of matrix found in cartilage.
Q 18.
Give three features of cardiac muscles.
Q 19.
Where blood is formed in our body?
Q 20.
What are identification marks of striated muscles when seen under microscope?
Q 21.
What is the unit of nervous tissues?
Q 22.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 23.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 24.
Name the following:
Tissue that connects muscles to bone in humans
Q 25.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 26.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 27.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 28.
Which connective tissue connects bones to muscles?
Q 29.
Fill In the Blanks :
Meristematic cells possess the power of cell ______.
Q 30.
Name the following:
Tissue that transports food in plants
Q 31.
Which tissues are responsible for the secondary growth of plants?
Q 32.
How does epidermis help xerophytes?
Q 33.
Which tissue is known as living mechanical tissue?
Q 34.
Based on functions performed, list the types of animal tissues.
Q 35.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 36.
Name the following:
Tissue that forms the inner lining of our mouth
Q 37.
Name the following:
Tissues present in lung alveoli
Q 38.
What is aerenchyma?
Q 39.
List the functions of the epidermis.
Q 40.
Are Collenchyma tissues present in roots of the plants?
Q 41.
How are complex tissues different from simple tissues?
Q 42.
Why do meristematic cells lack vacuoles?
Q 43.
Where do we find epithelial tissues on animal body?
Q 44.
Where do we find glandular columnar epithelia? What are their main role?
Q 45.
Name different types of connective tissues?
Q 46.
What are the constituents of connective tissues?
Q 47.
Name different types of white blood corpuscles.
Q 48.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 49.
Why are striated muscles called skeletal muscles?
Q 50.
What is the utility of tissues in multi-cellular organisms?
