Name the cells which transmit the stimulus very rapidly from one place to another within the body. Answer
Name the connective tissue that is found between skin and muscles. Answer
Name the tissue which:
(i) allows buoyancy to aquatic plants
(ii) provides flexibility to plants Answer
Give one word for the following:
a)Group of cells with similar structure and designed to give highest efficiency of function.
b)The process of taking up a permanent shape, size and function
c)Animal tissue connecting muscle to bones
d)Kidney shaped cells that enclose stomata. Answer
Name the basic packing tissue in the form of a few layers of cells. Answer
The basic packing tissue in the form of a new layers of cells is epithelial tissue.
Which parts of our body are composed of nervous tissue? Name the cells that make up the nervous tissue. Answer
Brain,spinal chord and nerves are made of Nervous tissue
Neurons or nerve cell
Short Answer Type
(a) Name the elements that make up the phloem tissue.
(b) Which of these elements is responsible for transportation?
(c) Which of these elements is dead? Answer
(a)phloem parenchyma, phloem fibres, seive tubes, companion cells
(b)sieve tubes and companion cells
(c) phloem fibres is dead
What is the function of sieve tube cells and how are they designed to carry out their function? Answer
(i)The main function of the sieve tube is the transport of carbohydrates, primarily sucrose, in the plant
(ii)They maintain the cells and transport food with the help of the companion cells. Designed
The interface of the tubes contains pores which help in conduction.
In a temporary mount of a leaf epidermis, we observe small pores.
(a)What are the pores present in leaf epidermis called?
(b)How are these pores beneficial to the plant? Answer
(b) Stomata regulate the movement of water through transpiration.
What is epidermis? What is its role? Answer
Epidermis is the outer layer of cells covering an organism.
Epidermis role is
(i) it provides protection
(ii) helps in gaseous exchange
(iii) It checks water loss
(iv) root hairs arising from epidermis helps in absorption of water and mineral
State the difference between the outer layer of the tissue of a branch of a tree and the outer layer of a young tree stem. Question 16.
How is striated squamous epithelial tissue different from squamous epithelial tissue? Question 17.
(a) Voluntary muscles are also known as skeletal muscles. Justify.
(b) Give two structured characteristics of these voluntary muscles. Question 18.
Differentiate Chlorenchyma and Aerenchyma. Question 19.
Name the tissue found in the following locations:
(a) Haversian canal,(b) Chondrocyte,(c) Eosinophils
Give one function of each of these. Answer
Bone tissue. Nerve and blood vessels pass through this canal.
Cartilage. They produce and maintain cartilaginous matrix.
Eosinophils. They help in defence mechanism of the body.
Discuss the cell arrangement which supports the fact that epidermis is a protective tissue.
Long Answer type
Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/ location in the body. Question 22.
Draw a diagrammatic labelled sketch of stem tip to show the location of meristematic tissue. Mention the function of each meristematic tissue. Question 23.
(a) Draw a neat and well labeled diagram of sclerenchyma tissue as seen in the transverse section.
(b) Mention the function of this tissue. Question 24.
(a) Give reason for the following:
(i) The cells of meristematic tissue have dense cytoplasm, thin walls and prominent nuclei.
(ii) Vacuoles are absent in the cells of this tissue.
(b) Identify the type of meristem present in the following:
(i) At the base of leaves.
(ii) Girth of stem increase due to this.
(iii) Increase the length of the stem. Question 25.
(i) Write the location and function of collenchyma tissue.
(ii) Draw a diagram of collenchyma tissue and label its any four parts. Question 26.
What do you understand by complex tissue? Name the two types of complex permanent tissue present in plants give one function of each complex tissue. Question 27.
(i)Name a connective tissue which is the hardest.
(ii)What makes it so hard?
(iii)List any three important functions of this tissue. Answer
(i) The hardest connective tissue is Bone.
(ii) It is hard as it contains large amount of calcium and phosphorous.
(iii) The three main Function of bone are
a.Protection of the internal organs such as heart and lungs from mechanical injury.
b.Provides support to the body and anchors muscles.
c.Helps in body movements such as walking, sitting, etc.
Differentiate between tendons and ligaments with respect to their structure, nature and function. Question 29.
Based upon cell shape, cell wall and intercellular spaces, prepare a comparative study table between parenchyma, collenchymas and sclerenchyma. Which of these tissues is dead? Question 30.
What is a nervous tissue? Give its functions. Explain the structure of a neuron with a diagram. Answer
This tissues class 9 extra questions is prepared keeping in mind the latest syllabus of CBSE . This has been designed in a way to improve the academic performance of the students. If you find mistakes , please do provide the feedback on the mail.
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