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.
Which tissues are called covering or protective tissues?
Q 3.
What is main purpose of stratified epithelium?
Q 4.
Where do you find collenchyma tissues in plants?
Q 5.
Which plant tissues are often called as stone cells?
Q 6.
What is the main function of cuboidal epithelium?
Q 7.
Where do we find epithelial tissues on animal body?
Q 8.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 9.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 10.
Where do you find Parenchyma cells in Plants?
Q 11.
How are complex tissues different from simple tissues?
Q 12.
Why are Xylem and Phloem known as complex permanent tissues?
Q 13.
Where do you find simple squamous in an animal body?
Q 14.
What is the common characteristic in different connective tissues?
Q 15.
What are constituents of blood tissue?
Q 16.
What is the unit of nervous tissues?
Q 17.
What happens in polio disease?
Q 18.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 19.
Name the following:
Human tissue that helps in the movement of ova in the fallopian tube.
Q 20.
Name the following:
Type of Connective Tissue having matrix made of calcium phosphate
Q 22.
What is the utility of tissues in multi-cellular organisms?
Q 23.
Which tissue makes up the husk of coconut?
Q 24.
Give three features of cardiac muscles.
Q 25.
How does epidermis help xerophytes?
Q 26.
Name two types of complex tissues.
Q 27.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 28.
List the cellular elements of xylem tissue?
Q 29.
How will you identify Columnar epithelium? Where are these tissues located?
Q 30.
What is Haematology?
Q 31.
How are muscles tissues related to nerve cells?
Q 32.
Name the following:
Isodiametric cells, thin cell wall, large vacuoles, living, packing tissue in plants
Q 33.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 34.
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 35.
What are the constituents of phloem?
Q 36.
Which tissues are responsible for the secondary growth of plants?
Q 37.
List the functions of the epidermis.
Q 38.
Identify the location of the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
Q 39.
Which connective tissue connects bones to muscles?
Q 40.
Where do we find Areolar tissue? What are its functions?
Q 41.
What are identification marks of striated muscles when seen under microscope?
Q 42.
How long a nerve cell can be?
Q 43.
What is myelin sheath? Where do we find it?
Q 44.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 45.
Name the following:
Tissue that forms the inner lining of our mouth
Q 46.
Name the following:
Connective Tissue with a fluid matrix
Q 47.
Name the following:
Supportive plant tissues containing stone cells.
Q 48.
Why do animals tissues require more energy as compared to plant tissues?
Q 49.
List the characteristics of meristematic tissues.
Q 50.
Name the chemical released by cork cells?
