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.
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.
Which tissues are responsible for the axial growth of plants?
Q 6.
Name the following:
Tissues also called erthyrocytes and transport oxygen.
Q 7.
Name the following:
Animal tissue having rhythmic contraction and relaxation throughout life.
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.
How long a nerve cell can be?
Q 12.
Name the three distinct parts of a neuron.
Q 13.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 14.
Why do plants have more dead tissues as compared to animals?
Q 15.
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 16.
List the characteristics of meristematic tissues.
Q 17.
Where do we find glandular columnar epithelia? What are their main role?
Q 18.
List the functions of blood cells
Q 19.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 20.
Name the following:
Connective Tissue with a fluid matrix
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.
Which connective tissue connects two bones?
Q 28.
Name the fat-storing tissues? Where are they located? How do these tissue help?
Q 29.
Fill In the Blanks :
Protective tissues include ______ and _____.
Q 30.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 31.
Name the following:
It provides buoyancy to lotus plant help it float.
Q 32.
Name the following:
Tissues present in lung alveoli
Q 33.
Name the following:
Tissues present in the brain
Q 34.
Name the following:
Tissue that stores fats in our body.
Q 35.
Name the following:
Supportive plant tissues containing stone cells.
Q 36.
What is the utility of tissues in multi-cellular organisms?
Q 37.
Why do plant tissue require less amount of energy in comparison to animal tissues?
Q 38.
What is the shape of Parenchyma cells?
Q 39.
Why the cell walls of collenchyma tissues are unevenly thickened?
Q 40.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 41.
List the cellular elements of xylem tissue?
Q 42.
What is the role of xylem tissue?
Q 43.
Name the cellular elements of Phloem tissue.
Q 44.
List functions of phloem tissue?
Q 45.
Why are Xylem and Phloem known as conducting tissues?
Q 46.
Why are Xylem and Phloem called as vascular tissues?
Q 47.
What is the shape of cuboidal epithelium? Where do we find these tissues?
Q 48.
What is the main function of cuboidal epithelium?
Q 49.
What is Haematology?
Q 50.
List the type of intercellular matrix present in the following connective tissues.
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
(e) Tendons
(f) Ligaments
(g) Areolar Tissue
(h) Adipose tissue
