questions related to tissues
Answers
Answer:
your answer is below
Explanation:
how many tissues are there in human body,
Answer:
If a potted plant is covered with a glass jar, water vapours appear on the wall of glass jar. Explain why?
Name the different components of xylem and draw a living component?
Draw and identify different elements of phloem.
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.
Differentiate between voluntary and involuntary muscles. Give one example of each type.
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
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.
Water hyacinth float on water surface. Explain.
Which structure protects the plant body against the invasion of parasites?
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 ________ .
Why is epidermis important for the plants?
Fill in the blanks
(a) ________ are forms of complex tissue.
(b) ________ have guard cells.
(c) Cells of cork contain a chemical called ________ .
(d) Husk of coconut is made of ________ tissue.
(e) ________ gives flexibility in plants.
(f) ________ and ________ are both conducting tissues.
(g) Xylem transports ________ and ________ from soil.
(h) Phloem transport ________ from ________ to other parts of the plant.
Long Answer Type Questions
Differentiate between sclerenchyma and parenchyma tissues. Draw well labelled diagram.
Describe the structure and function of different types of epithelial tissues. Draw diagram of each type of epithelial tissue.
Draw well labelled diagrams of various types of muscles found in human body.
Give reasons for
(a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole.
(b) Intercellular spaces are absent in sclerenchymatous tissues.
(c) We get a crunchy and granular feeling, when we chew pear fruit.
(d) Branches of a tree move and bend freely in high wind velocity.
(e) It is difficult to pull out the husk of a coconut tree.
List the characteristics of cork. How are they formed? Mention their role.
Why are xylem and phloem called complex tissues? How are they different from one other?
(a) Differentiate between meristematic and permanent tissues in plants
(b) Define the process of differentiation
(c) Name any two simple and two complex permanent tissues in plants.