Class 9 Tissues in Action Mock Test (CBSE)

Topics in Tissues in Action

• Plant and animal tissues
• Apical, lateral and intercalary meristems
• Permanent tissues
• Epithelial tissues
• Connective tissues
• Muscular tissues
• Nervous tissue
• The musculoskeletal system
• Types of joints: ball and socket, hinge, pivot, fixed
• Skeletal system

Tissues in Action practice questions with answers

1. Q1Multiple choice·1 mark
   Which specialised part of a neuron is responsible for receiving electrochemical impulses and conducting them toward the cell body?

   1. (a)$Axon$
   2. (b)$Dendrite$
   3. (c)$Nerve\ ending$
   4. (d)$Myelin\ sheath$
   Show answer and step marks

   1. Correct option: (b) $Dendrite$+1

   Answer: (b)
2. Q2Multiple choice·1 mark
   Which of the following plant permanent tissues possesses cells that are irregularly thickened at the corners due to pectin deposition, providing flexibility and mechanical support to aerial parts of a plant?

   1. (a)$Parenchyma$
   2. (b)$Collenchyma$
   3. (c)$Sclerenchyma$
   4. (d)$Chlorenchyma$
   Show answer and step marks

   1. Correct option: (b) $Collenchyma$+1

   Answer: (b)
3. Q3Multiple choice·1 mark
   Which of the following plant tissues provides mechanical strength to mature plant parts due to the presence of heavily thickened, lignified cell walls?

   1. (a)Parenchyma
   2. (b)Collenchyma
   3. (c)Sclerenchyma
   4. (d)Aerenchyma
   Show answer and step marks

   1. Correct option: (c) Sclerenchyma cells possess thickened, lignified secondary cell walls that provide structural strength and rigidity to the plant.+1

   Answer: (c)
4. Q4Long answer·5 marks
   (a) Differentiate between meristematic tissues and permanent tissues in plants based on their capacity to divide and the presence of intercellular spaces. (b) Name the three types of muscular tissues found in animals and give one location for each in the human body.
   Show answer and step marks

   1. Difference 1: Meristematic tissues consist of actively dividing cells, whereas permanent tissues have lost the capacity to divide.+1
   2. Difference 2: Meristematic tissues have dense cytoplasm and lack intercellular spaces, whereas permanent tissues may have intercellular spaces.+1
   3. Striated (skeletal) muscle: Found attached to bones in limbs.+1
   4. Smooth muscle: Found in the walls of internal visceral organs like the stomach or blood vessels.+1
   5. Cardiac muscle: Found exclusively in the walls of the heart.+1

   Answer: (a) Meristematic tissue cells divide actively, while permanent tissue cells have lost the ability to divide; meristematic tissue has no intercellular spaces, while permanent tissues may have them. (b) Striated (skeletal) muscle, attached to bones in the limbs; smooth muscle, in the walls of the stomach, intestine or blood vessels; cardiac muscle, in the heart.

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