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.
Name the following:
Supportive plant tissues containing stone cells.
Q 2.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 3.
Which meristem replaces epidermis as the protective covering?
Q 4.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 5.
Name the following:
Tissue that stores fats in our body.
Q 6.
What are identification marks of striated muscles when seen under microscope?
Q 7.
Name the following:
Tissues present in lung alveoli
Q 8.
What is the structure and nature of Parenchyma tissue?
Q 9.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 10.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 11.
What is main purpose of stratified epithelium?
Q 12.
What is myelin sheath? Where do we find it?
Q 13.
List the characteristics of meristematic tissues.
Q 14.
What is the role of xylem tissue?
Q 15.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 16.
List the functions of blood cells
Q 17.
Why are striated muscles called skeletal muscles?
Q 18.
Where do we find cardiac tissues? What are the functions of cardiac tissues?
Q 19.
Where do we find nerve cells?
Q 20.
How are muscles tissues related to nerve cells?
Q 21.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 22.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 23.
Which tissues are responsible for the axial growth of plants?
Q 24.
Where do we find intercalary meristem?
Q 25.
Where do you find Parenchyma cells in Plants?
Q 26.
Are Collenchyma tissues present in roots of the plants?
Q 27.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 28.
Why are Xylem and Phloem called as vascular tissues?
Q 29.
How will you identify Columnar epithelium? Where are these tissues located?
Q 30.
Where do we find glandular columnar epithelia? What are their main role?
Q 31.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 32.
How will you identify cardiac muscles cells under a microscope?
Q 33.
Do all cells respond to stimuli or this ability is possessed by nerve cells only?
Q 34.
What is the unit of nervous tissues?
Q 35.
How long a nerve cell can be?
Q 36.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 37.
Name the following:
Tissue that forms the inner lining of our mouth
Q 38.
Name the following:
Tissue that transports food in plants
Q 39.
Name the following:
Epithelial tissues having pillar like cells
Q 40.
Name the following:
Type of Connective Tissue having matrix made of calcium phosphate
Q 41.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
Q 42.
Why do plants have more dead tissues as compared to animals?
Q 43.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 44.
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 45.
Which tissue helps in increasing the length of stem and root?
Q 46.
Which tissue makes up the husk of coconut?
Q 47.
What are the constituents of phloem?
Q 48.
What does a neuron look like?
Q 49.
Which tissues are responsible for the secondary growth of plants?
Q 50.
What are the identifying features of collenchyma tissue?
