Question:
What is the utility of tissues in multi-cellular organisms?
Answer:
In multicellular organisms, there are millions of cells. Each specialised function is taken up by a different group of cells called tissue. Or Group of cells, forming a tissue are capable of doing a particular function efficiently. Thus Different tissues carry out different types of functions. E.g. In human beings, muscle cells contract and relax to cause movement, nerve cells carry messages, blood flows to transport oxygen, food, hormones and waste material and so on. In plants, vascular tissues conduct food and water from one part of the plant to other parts. So, multicellular organisms show the division of labour.
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.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 8.
Which plant tissues are often called as stone cells?
Q 9.
How are complex tissues different from simple tissues?
Q 10.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
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.
Name the following:
Connective Tissue with a fluid matrix
Q 19.
Where do we find intercalary meristem?
Q 20.
What do you mean by 'Differentiation' in plant tissues?
Q 21.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 22.
Name the two fluid connective tissues.
Q 23.
Which connective tissue connects two bones?
Q 24.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 25.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 26.
How long a nerve cell can be?
Q 27.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 28.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 29.
Name the following:
Tissue that stores fats in our body.
Q 30.
Name the following:
Supportive plant tissues containing stone cells.
Q 31.
Why do animals tissues require more energy as compared to plant tissues?
Q 32.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 33.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 34.
List the cellular elements of xylem tissue?
Q 35.
What is the role of xylem tissue?
Q 36.
Name the cellular elements of Phloem tissue.
Q 37.
Why are Xylem and Phloem called as vascular tissues?
Q 38.
What are the general identifying features of epithelial tissues?
Q 39.
What is the shape of cuboidal epithelium? Where do we find these tissues?
Q 40.
What is the main function of cuboidal epithelium?
Q 41.
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 42.
What are constituents of blood tissue?
Q 43.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 44.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 45.
What are identification marks of striated muscles when seen under microscope?
Q 46.
How will you identify cardiac muscles cells under a microscope?
Q 47.
How are muscles tissues related to nerve cells?
Q 48.
What happens in polio disease?
Q 49.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 50.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
