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Tissues (Class IX)

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Chlorenchyma contains chlorophyll and performs photosynthesis. Which type of tissue is it?

  1. Parenchyma

  2. Collenchyma

  3. Sclerenchyma

  4. Xylem

  5. Phloem


Correct Option: A
Explanation:

This is the correct answer as chlorenchyma is a type of parenchyma that contains chlorophyll and performs photosynthesis.

Which of the following statements is/are correct?

a. Meristematic cells divide continuously. b. The cells of meristematic tissues have thin walls and change shape continuously. c. They are present only at the growing regions of the plant.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. a, b and c


Correct Option: D
Explanation:

This is the correct answer as both statements are correct.

Which of the following statements about permanent tissues is/are correct?

a. Plant permanent tissues are produced by meristematic tissues. b. They have a vacuolated cytoplasm. c. Permanent tissues are living tissues.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. b only


Correct Option: B
Explanation:

This is the correct answer as both statements a and b are correct. Plant permanent tissues are produced by meristematic tissues. They have a vacuolated cytoplasm.

Which of the following statements is/are correct about epidermis?

a. The epidermis is usually made of a single layer of cells. b. Epidermal cells on the aerial parts of the plant often secrete a waxy, water-resistant layer on their outer surface. c. Epidermal cells are flat and have lots of intercellular spaces.

  1. a, b and c

  2. a only

  3. b only

  4. c only

  5. a and b


Correct Option: E
Explanation:

This is the correct answer as both statements are correct. The epidermis is usually made of a single layer of cells. Epidermal cells on the aerial parts of the plant often secrete a waxy, water-resistant layer on their outer surface.

Which of the following meristematic tissues is/are matched correctly with their location?

a. Apical meristem - Tip of stem, root and branches b. Intercalary meristem - Vascular bundles called cambium c. Lateral meristem - Leaf base and leaf sheaths of monocots

  1. a, b and c

  2. a and b

  3. a only

  4. b only

  5. c only


Correct Option: C
Explanation:

This is the correct answer. Apical meristem tissues are present at the tip of stem, root and their branches.

Which of the following is/are correct about vascular bundles?

a. They consist of plant complex tissues xylem and phloem. b. They transport water, salt and food material in plant body. c. Materials can move in both directions in them.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. only a


Correct Option: B
Explanation:

This is the correct answer as both statements are correct.

Which of the following is incorrect about sclerenchyma tissues?

  1. They act as a packing tissue and are found between other tissues.

  2. They are also known as fibres as they are elongated and thread-like.

  3. They are isodiametric without pointed ends.

  4. They are also known as stone cells.

  5. They give necessary strength, rigidity and flexibility to the plant body.


Correct Option: A
Explanation:

This is incorrect as parenchyma tissues act as a packing tissue and are found between other tissues. Sclerenchyma tissues are the chief mechanical tissues of the plant.

Each stomatal opening is surrounded by two semilunar cells called guard cells. Which of the following statements about these guard cells is/are correct?

a. They are dead cells. b. The inner walls of these cells are thicker and the outer walls thinner. c. They regulate the opening and closing of stomatal pores.

  1. a only

  2. b only

  3. c only

  4. a and c

  5. b and c


Correct Option: E
Explanation:

This is the correct answer as both these statements are correct about the guard cells.

Which of the following is not a function of epithelial tissues?

  1. They protect underlying cells from drying, injury, bacterial and chemical effects.

  2. They form lining of the mouth and alimentary canal of other internal organs to protect them.

  3. They help in elimination of waste products.

  4. They bind, support and pack together different organs of the body.

  5. Some of them perform secretory functions.


Correct Option: D
Explanation:

This is the correct answer as this is not a function of epithelial tissues. This is a function of connective tissues.

Phloem is made up some elements including phloem fibers and phloem parynchema. Which of the following elements are not present in phloem?

a. Trachieds b. Sieve tubes c. Companion cells d. Vessels

  1. a and b

  2. b and c

  3. c and d

  4. a and c

  5. a and d


Correct Option: E
Explanation:

This is the correct answer as trachieds and vessels are found in xylem and not phloem.

Which of the following pairs of 'type of epithelial tissue - its location' is incorrectly matched?

  1. Squamous epithelium - Bowman's capsule

  2. Cuboidal epithelium - Salivary glands

  3. Ciliated epithelium - Kidney tubules

  4. Striated squamous epithelium - Gonads

  5. Sensory epithelium - Sense organs


Correct Option: D
Explanation:

This is paired incorrectly. Skin epithelial cells are arranged in many layers to prevent wear and tear. Since they are arranged in a pattern of layers, the epithelium is called stratified squamous epithelium. Germinal epithelium is found in gonads.

Bone is a type of

  1. epithelial tissue

  2. connective tissue

  3. muscular tissue

  4. nervous tissue

  5. None of these


Correct Option: B
Explanation:

This is the correct answer as bone is a connective tissue. It forms the framework that supports the body. It also anchors the muscles and supports the main organs of the body. It is a strong and non-flexible tissue.

Which of the following are cardiac muscles?

  1. Uninucleated and unstriated

  2. Unstriated and unbranched

  3. Branched and uninucleated

  4. Unbranched and multinucleated

  5. Branched and multinucleated


Correct Option: C
Explanation:

This is the correct answer. Cardiac muscle cells have a branched shape so that each cell is in contact with three of four other cardiac muscle cells. Cardiac tissues are also smooth and uninucleated.

Which of the following tissues stores fat in our body?

  1. Areolar tissue

  2. Adipose tissue

  3. Blood

  4. Tendon

  5. Basement membrane


Correct Option: B
Explanation:

This is the correct answer. Adipose tissue stores fat and acts as an insulator.

Meristematic cells lack which of the following organelles?

a. Cytoplasm b. Nucleus c. Vacuole

  1. a only

  2. b only

  3. c only

  4. a and b

  5. b and c


Correct Option: C
Explanation:

This is the correct answer as meristematic tissues lack vacuoles as these cause hindrance in cell division.

Which part of neuron receives information from another neuron?

  1. Synapse

  2. Cyton

  3. Axon

  4. Dendrites

  5. Nodes of Ranvier


Correct Option: D
Explanation:

This is the correct answer. 

Haversian canals and marrow cavities are found in

  1. bone

  2. cartilage

  3. tendon

  4. ligament

  5. adipose tissue


Correct Option: A
Explanation:

This is the correct answer. Haversian canals and marrow cavities are found in bone.

Which of the following statements is/are correct about cardiac muscles?

a. They are found in the heart. b. They are involuntary muscles. c. They are smooth muscles.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. a only


Correct Option: B
Explanation:

This is the correct answer as both statements are correct.

Which of the following tissues gives flexibility to plants?

  1. Apical

  2. Lateral

  3. Collenchyma

  4. Chlorenchyma

  5. Sclerenchyma


Correct Option: C
Explanation:

The flexibility in plants is due to a permanent tissue called collenchyma. It allows easy bending in various parts of a plant without breaking. It also provides mechanical support to plants.

Which of the following statements is/are correct about leukocytes?

a. These are also known as red blood cells. b. They transport oxygen and prevent excess of acidity in blood. c. They are devoid of haemoglobin.

  1. a, b and c

  2. a and b

  3. a and c

  4. b and c

  5. c only


Correct Option: E
Explanation:

This is correct as this is the correct answer. White blood cells or leukocytes lack haemoglobin.

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