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.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 6.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 7.
Which tissues are responsible for the axial growth of plants?
Q 8.
Which plant tissues are often called as stone cells?
Q 9.
How are complex tissues different from simple tissues?
Q 10.
Which connective tissue connects bones to muscles?
Q 11.
Name the three distinct parts of a neuron.
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.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 17.
How long a nerve cell can be?
Q 18.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 19.
Name the following:
Connective Tissue with a fluid matrix
Q 20.
Why do plants have more dead tissues as compared to animals?
Q 21.
Why do animals tissues require more energy as compared to plant tissues?
Q 22.
Where do we find intercalary meristem?
Q 23.
What do you mean by 'Differentiation' in plant tissues?
Q 24.
What are the general identifying features of epithelial tissues?
Q 25.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 26.
Name the two fluid connective tissues.
Q 27.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 28.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 29.
Which connective tissue connects two bones?
Q 30.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 31.
What are identification marks of striated muscles when seen under microscope?
Q 32.
How will you identify cardiac muscles cells under a microscope?
Q 33.
What happens in polio disease?
Q 34.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 35.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 36.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 37.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 38.
Name the following:
Tissues present in lung alveoli
Q 39.
Name the following:
Tissue that stores fats in our body.
Q 40.
Name the following:
Supportive plant tissues containing stone cells.
Q 41.
Name the following:
Plant tissue help in bending leaf stalk
Q 42.
Name types of simple tissues.
Q 43.
Where is apical meristem found?
Q 44.
Which tissue helps in increasing the length of stem and root?
Q 45.
Which tissue makes up the husk of coconut?
Q 46.
What are the constituents of phloem?
Q 47.
What does a neuron look like?
Q 48.
Where do you find Parenchyma cells in Plants?
Q 49.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 50.
What is aerenchyma?
