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:
Tissues also called erthyrocytes and transport oxygen.
Q 7.
Which plant tissues are often called as stone cells?
Q 8.
How are complex tissues different from simple tissues?
Q 9.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 10.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 11.
Why do plants have more dead tissues as compared to animals?
Q 12.
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 13.
List the characteristics of meristematic tissues.
Q 14.
Where do we find glandular columnar epithelia? What are their main role?
Q 15.
List the functions of blood cells
Q 16.
Which connective tissue connects bones to muscles?
Q 17.
Name the three distinct parts of a neuron.
Q 18.
Where do we find intercalary meristem?
Q 19.
What do you mean by 'Differentiation' in plant tissues?
Q 20.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 21.
Name the two fluid connective tissues.
Q 22.
Which connective tissue connects two bones?
Q 23.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 24.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 25.
How long a nerve cell can be?
Q 26.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 27.
Name the following:
Connective Tissue with a fluid matrix
Q 28.
Name the following:
Tissue that stores fats in our body.
Q 29.
Name the following:
Supportive plant tissues containing stone cells.
Q 30.
Why do animals tissues require more energy as compared to plant tissues?
Q 31.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 32.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 33.
List the cellular elements of xylem tissue?
Q 34.
What is the role of xylem tissue?
Q 35.
Name the cellular elements of Phloem tissue.
Q 36.
Why are Xylem and Phloem called as vascular tissues?
Q 37.
What are the general identifying features of epithelial tissues?
Q 38.
What is the shape of cuboidal epithelium? Where do we find these tissues?
Q 39.
What is the main function of cuboidal epithelium?
Q 40.
List the type of intercellular matrix present in the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
(f) Ligaments
(g) Areolar Tissue
(h) Adipose tissue
Q 41.
What are constituents of blood tissue?
Q 42.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 43.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 44.
What are identification marks of striated muscles when seen under microscope?
Q 45.
How will you identify cardiac muscles cells under a microscope?
Q 46.
How are muscles tissues related to nerve cells?
Q 47.
What happens in polio disease?
Q 48.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 49.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 50.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
