TISSUES

Why is epidermis important for the plants?

Fill in the blanks
(a) Cork cells possesses———on their walls that makes it impervious to
gases and water.
(b) ——— have tubular cells with perforated walls and are living in nature.
(c) Bone possesses a hard matrix composed of———and ———.

Which structure protects the plant body against the invasion of parasites?

Water hyacinth float on water surface. Explain.

Fill in the blanks
(a) Lining of blood vessels is made up of———.
(b) Lining of small intestine is made up of ———.
(c) Lining of kidney tubules is made up of———.
(d) Epithelial cells with cilia are found in———of our body.

Differentiate the following activities on the basis of voluntary (V) or
involuntary (I V) muscles.
(a) Jumping of frog
(b) Pumping of the heart
(c) Writing with hand
(d) Movement of chocolate in your intestine

Differentiate between voluntary and involuntary muscles. Give one example
of each type.

Write true (T) or false (F)
(a) Epithelial tissue is protective tissue in animal body.
(b) The lining of blood vessels, lung alveoli and kidney tubules are all made
up of epithelial tissue.
(c) Epithelial cells have a lot of intercellular spaces.
(d) Epithelial layer is permeable layer.
(e) Epithelial layer does not allow regulation of materials between body
and external environment.

Draw and identify different elements of phloem.

Name the different components of xylem and draw a living component?

If a potted plant is covered with a glass jar, water vapours appear on the
wall of glass jar. Explain why?

Match the column (A) with the column (B)
(A)                                                               (B)
(a) Parenchyma                                             (i) Thin walled, packing cells
(b) Photosynthesis                                          (ii) Carbon fixation
(c) Aerenchyma                                              (iii) Localized thickenings
(d) Collenchyma                                             (iv) Buoyancy
(e) Permanent tissue                                        (v) Sclerenchyma

Match the column (A) with the column (B)
(A)                                                             (B)
(a) Fluid connective tissue                             (i) Subcutaneous layer
(b) Filling of space inside the organs              (ii) Cartilage
(c) Striated muscle                                      (iii) Skeletal muscle
(d) Adipose tissue                                        (iv) Areolar tissue
(e) Surface of joints                                     (v) Blood
(f) Stratified squamous epithelium                 (vi) Skin

Animals of colder regions and fishes of cold water have thicker layer of
subcutaneous fat. Describe why?

Complete the table:

How does the cork act as a protective tissue?

What is the role of epidermis in plants?

Name the regions in which parenchyma tissue is present.

Identify the type of tissue in the following: skin, bark of tree, bone, lining of kidney tubule, vascular bundle.

Name the following:

(a) Tissue that forms the inner lining of our mouth.

(b) Tissue that connects muscle to bone in humans.

(c) Tissue that transports food in plants.

(d) Tissue that stores fat in our body.

(e) Connective tissue with a fluid matrix.

(f) Tissue present in the brain.

Draw a labelled diagram of a neuron.

Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body.

What is the specific function of the cardiac muscle?

Diagrammatically show the difference between the three types of muscle fibres.

What are the functions of the stomata?

Differentiate between parenchyma, collenchyma and sclerenchyma, on the basis of their cell wall.

How are simple tissues different from complex tissues in plants?

How many types of elements together make up the xylem tissue? Name them.

Define the term "tissue".

What are the functions of areolar tissue?

Give three features of cardiac muscles.

What does a neuron look like?

Name the tissue responsible for movement in our body.

What are the constituents of phloem?

Which tissue makes up the husk of coconut?

Where is apical meristem found?

Name types of simple tissues.

What is the utility of tissues in multi-cellular organisms?

What is a tissue?