Question:
How does epidermis help xerophytes?
Answer:
Xerophytes are the plants which grow in desert conditions. In plants living in very dry habitats, epidermis may be thicker since protection against water loss is critical. The entire surface of a plant has this outer covering of epidermis. It protects all the parts of the plant.It also releases a wax-like substance called cutin which restricts transpiration.
Tissues
Q 1.
Name the following:
Supportive plant tissues containing stone cells.
Q 2.
Which meristem replaces epidermis as the protective covering?
Q 3.
What are different types of muscle tissues? Also list which of these are voluntary or involuntary.
Q 4.
What are identification marks of striated muscles when seen under microscope?
Q 5.
Fill In the Blanks :
Xylem is composed of _______, ______, ________ and _______.
Q 6.
Name the following:
Tissue that stores fats in our body.
Q 7.
Which tissue primarily attributes to easy bending of various parts of plants (like stem, leaves)?
Q 8.
What is myelin sheath? Where do we find it?
Q 9.
Name the following:
Tissues present in lung alveoli
Q 10.
List the characteristics of meristematic tissues.
Q 11.
What is the structure and nature of Parenchyma tissue?
Q 12.
Is xylem (or phloem) homogenous tissue or heterogeneous tissue?
Q 13.
What is the role of xylem tissue?
Q 14.
What is main purpose of stratified epithelium?
Q 15.
Which Phloem cellular element has a tubular structure with perforated walls?
Q 16.
Why are Xylem and Phloem called as vascular tissues?
Q 17.
List the functions of blood cells
Q 18.
Why are striated muscles called skeletal muscles?
Q 19.
Where do we find cardiac tissues? What are the functions of cardiac tissues?
Q 20.
Where do we find nerve cells?
Q 21.
How are muscles tissues related to nerve cells?
Q 22.
Fill In the Blanks :
____________ is the parenchyma with large number of chloroplasts.
Q 23.
Fill In the Blanks :
Bone is surrounded by a connective tissue known as ________.
Q 24.
Name the following:
Tissue that transports food in plants
Q 25.
Name the following:
Type of Connective Tissue having matrix made of calcium phosphate
Q 27.
Why do plants have more dead tissues as compared to animals?
Q 28.
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 29.
Which tissues are responsible for the axial growth of plants?
Q 30.
What does a neuron look like?
Q 31.
Where do we find intercalary meristem?
Q 32.
Which tissues are responsible for the secondary growth of plants?
Q 33.
Where do you find Parenchyma cells in Plants?
Q 34.
What are the identifying features of collenchyma tissue?
Q 35.
Which plant tissues are often called as stone cells?
Q 36.
Are Collenchyma tissues present in roots of the plants?
Q 37.
Name the chemical released by cork cells?
Q 38.
How are complex tissues different from simple tissues?
Q 39.
Why are Xylem and Phloem are called vascular or conducting tissues?
Q 40.
Which plant tissue is considered to have played an important role in the survival of terrestrial plants?
Q 41.
Why are Xylem and Phloem known as conducting tissues?
Q 42.
Why are Xylem and Phloem known as complex permanent tissues?
Q 43.
Based on layer and shape of cells, how Epithelial tissues can be classified?
Q 44.
Where do you find simple squamous in an animal body?
Q 45.
What is the shape of cuboidal epithelium? Where do we find these tissues?
Q 46.
How will you identify Columnar epithelium? Where are these tissues located?
Q 47.
Where do we find glandular columnar epithelia? What are their main role?
Q 48.
What is the common characteristic in different connective tissues?
Q 49.
What are the constituents of connective tissues?
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
