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.
Where do you find collenchyma tissues in plants?
Q 3.
Which tissues are called covering or protective tissues?
Q 4.
What is main purpose of stratified epithelium?
Q 5.
Which tissues are responsible for the axial growth of plants?
Q 6.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 7.
How are complex tissues different from simple tissues?
Q 8.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 9.
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 10.
List the characteristics of meristematic tissues.
Q 11.
Which plant tissues are often called as stone cells?
Q 12.
Which connective tissue connects bones to muscles?
Q 13.
How long a nerve cell can be?
Q 14.
Name the three distinct parts of a neuron.
Q 15.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 16.
Why do plants have more dead tissues as compared to animals?
Q 17.
Where do we find intercalary meristem?
Q 18.
Where do we find glandular columnar epithelia? What are their main role?
Q 19.
List the functions of blood cells
Q 20.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 21.
Name the following:
Connective Tissue with a fluid matrix
Q 22.
Name the following:
Supportive plant tissues containing stone cells.
Q 23.
Why do animals tissues require more energy as compared to plant tissues?
Q 24.
What do you mean by 'Differentiation' in plant tissues?
Q 25.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 26.
List the cellular elements of xylem tissue?
Q 27.
What is the role of xylem tissue?
Q 28.
What are the general identifying features of epithelial tissues?
Q 29.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 30.
Name the two fluid connective tissues.
Q 31.
Which connective tissue connects two bones?
Q 32.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 33.
Which muscle tissues show characteristics of both striated and unstriated muscles?
Q 34.
How are muscles tissues related to nerve cells?
Q 35.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 36.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 37.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 38.
Name the following:
Tissues present in lung alveoli
Q 39.
Name the following:
Tissues present in the brain
Q 40.
Name the following:
Tissue that stores fats in our body.
Q 42.
What is the utility of tissues in multi-cellular organisms?
Q 43.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 44.
What is the shape of Parenchyma cells?
Q 45.
Where do you find Parenchyma cells in Plants?
Q 46.
How does epidermis help xerophytes?
Q 47.
Name the chemical released by cork cells?
Q 48.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 49.
Name the cellular elements of Phloem tissue.
Q 50.
List functions of phloem tissue?
