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Answer key

Chapter: 01. Tissues

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CHAPTER 1: TISSUES

PRACTICE EXAM PAPER

Class: VII ​Subject: Biology ​Time Allowed: 2 Hours
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SECTION A: MULTIPLE CHOICE QUESTIONS

Choose the correct option for each of the following questions.
Which level of organisation is represented by simple multicellular organisms like algae and sponges? (a) Organ level (b) Tissue level © Cellular level (d) Organ system level
Who is known as the Father of Modern Histology? (a) Marie Francois Xavier Bichat (b) Robert Hooke © Anton van Leeuwenhoek (d) Charles Darwin
Which of the following tissues are formed of actively dividing young cells that are responsible for plant growth? (a) Permanent tissues (b) Protective tissues © Conducting tissues (d) Meristematic tissues
The only living cells present in the xylem tissue are: (a) Xylem vessels (b) Xylem tracheids © Xylem parenchyma (d) Xylem fibres
Which connective tissue joins skeletal muscles to the bones? (a) Ligaments (b) Tendons © Cartilage (d) Areolar tissue
Which type of muscular tissue is found in the wall of the heart and has branched, cylindrical fibres? (a) Striated muscle (b) Nonstriated muscle © Voluntary muscle (d) Cardiac muscle
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SECTION B: FILL IN THE BLANKS

Fill in the blanks with suitable words. Use ‘_ _ _ _ _ _ _ _ _ _ _ _ _ _’ for the blank.
In leaves, the epidermis secretes a waxy and waterproof layer called the _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Meristematic cells have thin walls, large nuclei, and their vacuoles are either absent or _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Yellow elastic fibrous tissue forms _ _ _ _ _ _ _ _ _ _ _ _ _ _, which connect two bones together at the joints.
Red blood cells and white blood cells are formed in the red bone marrow of _ _ _ _ _ _ _ _ _ _ _ _ _ _.
Axons of several neurons are bundled together to form a _ _ _ _ _ _ _ _ _ _ _ _ _ _.
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SECTION C: TRUE OR FALSE

State whether the following statements are True or False. If false, rewrite the correct statement.
Simple multicellular organisms like algae and sponges have division of labour among their cells.
All phloem cells are living except phloem fibres.
Some parenchyma cells contain chlorophyll and are called chlorenchyma.
Bones are highly elastic skeletal tissues.
Nonstriated muscles are voluntary in nature.
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SECTION D: EXPLANATION OF TERMS

Define or explain the following terms in one or two sentences.
Organisation
Sieve plates
Areolar tissue
Lymph
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SECTION E: DIFFERENTIATE CONCEPTS

Differentiate between the following pairs based on the criteria given in the brackets.
Meristematic Tissues and Permanent Tissues (Ability of cells to divide)
Tendon and Ligament (Elasticity and type of tissue)
Simple Permanent Tissue and Complex Permanent Tissue (Number of cell types forming the tissue)
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SECTION F: SHORT ANSWER QUESTIONS

Answer the following questions briefly.
Why are white blood cells (WBCs) called the ‘soldiers of the body’?
Mention the two major functions of meristematic tissues in plants.
Where is collenchyma tissue found in plants, and what is its main function?
State the main components of the shoot system and the root system in plants.
What are the three parts that make up a neuron?
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SECTION G: DIAGRAM-BASED QUESTION

Analyze the diagram below and answer the questions that follow.
Diagram showing the structure of a typical nerve cell or neuron with parts labeled.
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Identify the specific cell represented in the diagram.
Label the parts marked A, B, and C.
State the main function of part C.
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SECTION H: LONG ANSWER QUESTIONS

Answer the following questions in detail.
Classify plant tissues by creating a clear hierarchy. Describe the functions of simple supporting tissues (parenchyma, collenchyma, and sclerenchyma) in detail.
Discuss epithelial tissues in animals. Describe their general locations, key characteristics, and explain three different types of epithelial tissues based on cell shapes.
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