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.
Name the cellular elements of Phloem tissue.
Q 2.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 3.
Which plant tissue is considered to have played an important role in the survival of terrestrial plants?
Q 4.
Why are striated muscles called skeletal muscles?
Q 5.
Name the following:
Tissues present in lung alveoli
Q 6.
What is the utility of tissues in multi-cellular organisms?
Q 7.
Which tissues are responsible for the axial growth of plants?
Q 8.
Which muscle tissues show characteristics of both striated and unstriated muscles?
Q 9.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 10.
Why vascular tissue is considered a distinctive feature responsible for the survival of plants in terrestrial plants?
Q 11.
Where do we find epithelial tissues on animal body?
Q 12.
What is the common characteristic in different connective tissues?
Q 13.
How are muscles tissues related to nerve cells?
Q 14.
Name the following:
Type of Connective Tissue having matrix made of calcium phosphate
Q 15.
Name the chemical released by cork cells?
Q 16.
What is the role of xylem tissue?
Q 17.
Based on functions performed, list the types of animal tissues.
Q 18.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 19.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 20.
Which plant tissues are often called as stone cells?
Q 21.
List functions of phloem tissue?
Q 22.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 23.
Where do we find cardiac tissues? What are the functions of cardiac tissues?
Q 24.
What is the unit of nervous tissues?
Q 25.
What is myelin sheath? Where do we find it?
Q 26.
Name the following:
Supportive plant tissues containing stone cells.
Q 27.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 28.
How are complex tissues different from simple tissues?
Q 29.
Why are Xylem and Phloem known as complex permanent tissues?
Q 30.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 31.
What is the main function of cuboidal epithelium?
Q 32.
Where do we find glandular columnar epithelia? What are their main role?
Q 33.
What are the constituents of connective tissues?
Q 34.
List the functions of blood cells
Q 35.
Why type of inter cellular matrix is found in bone tissue? What are its constituents?
Q 36.
Which connective tissue connects two bones?
Q 37.
Where do we find Areolar tissue? What are its functions?
Q 38.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 39.
What are identification marks of striated muscles when seen under microscope?
Q 40.
How will you identify cardiac muscles cells under a microscope?
Q 41.
Name the three distinct parts of a neuron.
Q 42.
Fill In the Blanks :
Based on ability to divide, plant tissues may be classified as ________ and _____ tissues.
Q 43.
Fill In the Blanks :
Permanent tissues are those which have lost the capacity to _____.
Q 44.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 45.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 46.
Name the following:
Connective Tissue with a fluid matrix
Q 47.
Name the following:
Tissue that connects muscles to bone in humans
Q 48.
Name the following:
Tissue that stores fats in our body.
Q 49.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 50.
Name the tissue responsible for the movement in our body.
