Question:
Why do meristematic cells lack vacuoles?
Answer:
The purpose of vacuole is to store food and waste product. Since meristems are young cells and are actively dividing, they do not participate actively in food preparation. Neither they produce large waste and hence lack vacuoles.
Tissues
Q 1.
Which tissues are called covering or protective tissues?
Q 2.
Which tissues are responsible for the axial growth of plants?
Q 3.
What is main purpose of stratified epithelium?
Q 4.
Where do we find intercalary meristem?
Q 5.
Which connective tissue connects bones to muscles?
Q 6.
Where do you find collenchyma tissues in plants?
Q 7.
Why do animals tissues require more energy as compared to plant tissues?
Q 8.
Which plant tissues are often called as stone cells?
Q 9.
Why are Xylem and Phloem known as conducting tissues?
Q 10.
Where do we find Areolar tissue? What are its functions?
Q 11.
How are muscles tissues related to nerve cells?
Q 12.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 13.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 14.
What are constituents of blood tissue?
Q 15.
Fill In the Blanks :
Meristematic cells possess the power of cell ______.
Q 16.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 17.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 18.
Where do you find simple squamous in an animal body?
Q 19.
What does plasma contain?
Q 20.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 21.
Fill In the Blanks :
The study of the structure of tissues and organs is known as ______ .
Q 22.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 23.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 24.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 25.
Why do plants have more dead tissues as compared to animals?
Q 26.
What are the identifying features of collenchyma tissue?
Q 27.
What is aerenchyma?
Q 28.
How does epidermis help xerophytes?
Q 29.
Which tissue is known as living mechanical tissue?
Q 30.
Name the chemical released by cork cells?
Q 31.
How are complex tissues different from simple tissues?
Q 32.
Where do we find epithelial tissues on animal body?
Q 33.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 34.
What is the shape of simple squamous tissue?
Q 35.
Name the following:
Connective Tissue with a fluid matrix
Q 36.
Name the following:
Isodiametric cells, thin cell wall, large vacuoles, living, packing tissue in plants
Q 37.
Where is apical meristem found?
Q 38.
What are the constituents of phloem?
Q 39.
List the characteristics of meristematic tissues.
Q 40.
What is the structure and nature of Parenchyma tissue?
Q 41.
Where do you find Parenchyma cells in Plants?
Q 42.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 43.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 44.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 45.
What is the role of xylem tissue?
Q 46.
List functions of phloem tissue?
Q 47.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 48.
Why are Xylem and Phloem known as complex permanent tissues?
Q 49.
What is Haematology?
Q 50.
Where blood is formed in our body?
