Every question from this NCERT chapter, with a detailed explanation.
Consider the following statements regarding complex permanent tissues in plants: 1. Xylem is responsible for the transport of food materials from leaves to roots. 2. Phloem transports food from leaves to other parts of the plant. 3. Unlike Xylem, materials in Phloem can move in both directions. Which of the statements given above are correct?
Consider the following statements regarding 'Vascular Bundles' in plants: 1. They are constituted by Parenchyma and Collenchyma only. 2. They are examples of complex permanent tissue. 3. They are a distinctive feature of complex plants for survival in terrestrial environments. Which of the statements given above is/are correct?
In the context of animal tissues, what is the primary function of the cuboidal epithelium found in the lining of kidney tubules?
Consider the following statements regarding 'Glandular Epithelium': 1. It is formed when a portion of the epithelial tissue folds inward. 2. It always constitutes a unicellular gland. 3. It specializes in secreting substances at the epithelial surface. Which of the statements given above are correct?
Which one of the following statements correctly differentiates 'Bone' from 'Cartilage'?
Consider the following statements about 'Collenchyma': 1. It is found in the roots of the plant. 2. The cells are living, elongated, and irregularly thickened at the corners. 3. It has very little intercellular space. Which of the statements given above are correct?
Consider the following statements about 'Adipose Tissue': 1. It is found below the skin and between internal organs. 2. Its cells are filled with calcium deposits. 3. It acts as an insulator due to fat storage. Which of the statements given above is/are correct?
Consider the following statements about 'Smooth Muscles': 1. They are also known as striated muscles. 2. They control involuntary movements like the movement of food in the alimentary canal. 3. They are multinucleate. Which of the statements given above are correct?
Consider the following statements regarding 'Guard Cells': 1. They are kidney-shaped cells enclosing the stomata. 2. They have no role in the opening and closing of stomata. 3. They are part of the epidermal tissue system. Which of the statements given above is/are correct?
With reference to the 'Epidermis' of aquatic plants, consider the following statements: 1. It contains large air cavities to help them float. 2. This modified tissue is called Sclerenchyma. 3. Aerenchyma is a type of Collenchyma. Which of the statements given above are correct?
Consider the following statements regarding meristematic tissues in plants: 1. They are composed of cells that have lost the ability to divide. 2. The cells of this tissue have dense cytoplasm and prominent nuclei. 3. These cells generally lack vacuoles. Which of the statements given above is/are correct?
With reference to the fundamental differences between plants and animals, consider the following statements: 1. Plants have a large quantity of supportive tissue which generally consists of dead cells. 2. Growth in plants is uniform throughout the body, whereas in animals it is limited to specific regions. 3. Animals consume more energy compared to plants due to active locomotion. Which of the statements given above is/are correct?
Which of the following best explains the process of 'differentiation' in plant tissues?
With reference to simple permanent tissues in plants, consider the following statements: 1. Parenchyma tissues are generally dead cells that provide mechanical hardness. 2. Collenchyma provides mechanical support and flexibility to plant parts like tendrils. 3. Sclerenchyma consists of living cells that make the plant hard and stiff. Which of the statements given above are correct?
Which one of the following plant tissues is primarily responsible for increasing the girth of the stem or root?
Consider the following pairs of plant tissues and their specific characteristics: 1. Aerenchyma – Parenchyma with air cavities for buoyancy 2. Chlorenchyma – Parenchyma containing chlorophyll 3. Sclerenchyma – Cells with corners thickened by cellulose How many of the above pairs are correctly matched?
With reference to the epidermis in plants, consider the following statements: 1. It is usually made of a single layer of cells without intercellular spaces. 2. In desert plants, the epidermis lacks any waxy coating to facilitate transpiration. 3. Epidermal cells of roots often bear hair-like parts to increase surface area for absorption. Which of the statements given above is/are correct?
Which of the following best describes the nature of 'Cork' cells in older plant stems?
Which one of the following elements of Xylem tissue is living?
In the context of animal tissues, what characterizes "Squamous Epithelium"?
Consider the following statements about epithelial tissue: 1. It forms a barrier to keep different body systems separate. 2. It is directly connected to the underlying tissue without any separating membrane. 3. It contains large intercellular spaces to facilitate the movement of materials. Which of the statements given above is/are correct?
Which of the following tissues is responsible for the movement of mucus in the respiratory tract?
Match List I with List II and select the correct answer using the code given below: List I | List II A. Blood | 1. Jelly-like, fills space inside organs B. Bone | 2. Solid, composed of proteins and sugars C. Cartilage | 3. Fluid (Plasma) D. Areolar | 4. Hard, composed of calcium and phosphorus
Consider the following statements regarding 'Ligaments' and 'Tendons': 1. Ligaments connect bones to bones and are very elastic. 2. Tendons connect bones to bones and are highly elastic. 3. Both ligaments and tendons are types of connective tissue. Which of the statements given above is/are correct?
Which one of the following tissues acts as an insulator in the human body?
With reference to muscular tissues, consider the following statements: 1. Striated muscles are uninucleate and involuntary. 2. Smooth muscles are uninucleate and involuntary. 3. Cardiac muscles are branched, uninucleate, and involuntary. Which of the statements given above are correct?
The 'Neuron' or nerve cell consists of which of the following parts? 1. Cell body with a nucleus 2. The axon is absent in human nerve cells. 3. Dendrites are responsible for secreting hormones. Select the correct answer using the code given below:
Which of the following is the primary function of the 'Stomata' found in the epidermis of leaves?
Consider the following statements about 'Sclerenchyma': 1. It is the tissue that makes the plant hard and stiff. 2. The cells have thin walls made of cellulose. 3. It is present in the hard covering of seeds and nuts. Which of the statements given above is/are correct?
Which one of the following is the primary reason why plants possess a larger proportion of dead supportive tissues than animals?
Which of the following correctly describes the location of 'Apical Meristem'?
With reference to 'Phloem', consider the following statements: 1. It is made up of tracheids, vessels, and xylem parenchyma. 2. Phloem fibres are the only dead cells in the phloem tissue. 3. Sieve tubes are tubular cells with perforated walls. Which of the statements given above is/are correct?
Which of the following tissues is found in the iris of the eye, ureters, and bronchi of the lungs?
Consider the following statements regarding 'Blood' as a tissue: 1. It is a type of connective tissue. 2. Its matrix is a rigid solid called bone marrow. 3. Plasma is devoid of any proteins or salts. Which of the statements given above are correct?
With reference to 'Cartilage', consider the following statements: 1. It consists of cells packed tightly without any intercellular spaces. 2. Its solid matrix is composed of proteins and sugars. 3. It is found exclusively in the spinal cord. Which of the statements given above are correct?
Which one of the following is not a function of the Areolar connective tissue?
The flexibility in plants is mainly due to which of the following tissues?
Consider the following statements about 'Nervous Tissue': 1. It is highly specialised for transmitting stimuli rapidly. 2. Nerve cells are microscopic and never exceed a few millimetres in length. 3. Nerve impulses allow animals to move muscles in response to stimuli. Which of the statements given above are correct?
Which of the following best explains why meristematic cells lack vacuoles?
Which of the following statements is correct regarding 'Intercalary Meristem'?
Consider the following statements about 'Xylem': 1. Tracheids and vessels are spherical structures. 2. Xylem parenchyma is the only living component of xylem. 3. Xylem fibres are mainly supportive in function. Which of the statements given above is/are correct?
The chemical substance 'Lignin' is primarily associated with which plant tissue?
Which of the following tissues has cells that are 'spindle-shaped' (pointed ends)?
Which one of the following is the most appropriate reason for the skin being made of 'Stratified Squamous Epithelium'?
Which of the following plant tissues contains 'Chlorenchyma'?
The presence of "intercellular spaces" is a characteristic feature of which simple permanent tissue?
Consider the following statements about 'Cardiac Muscles': 1. They fatigue easily and require frequent rest periods. 2. They are involuntary muscles. 3. The cells are cylindrical, branched, and uninucleate. Which of the statements given above are correct?
Which of the following tissues connects muscles to bones?
Which of the following is correct regarding the 'Basement Membrane'?
Consider the following statements about 'Bone' tissue: 1. It forms the framework that supports the body. 2. It is a highly flexible tissue. 3. Bone cells are embedded in a hard matrix composed of calcium and phosphorus compounds. Which of the statements given above are correct?
Which of the following pairs is correctly matched?
Which one of the following plant tissues constitutes the husk of a coconut?
The cell walls of 'Cork' are impervious to gases and water due to the deposition of which chemical substance?
Consider the following statements about 'Sieve Tubes' in Phloem: 1. They are thick-walled cells with no perforations. 2. They are living cells at maturity. 3. They are responsible for the transport of water. Which of the statements given above are correct?
Which one of the following connective tissues primarily fills the space inside organs and assists in tissue repair?
In the context of muscle tissues, what does the term 'striations' refer to?
What is the defining characteristic of 'Voluntary Muscles'?
Consider the following statements regarding 'Nerve Impulses': 1. They are signals that pass along the nerve fibre. 2. They are electrical signals that cannot trigger muscle movement. 3. The combination of nerve and muscle tissue is absent in animals. Which of the statements given above are correct?
In vascular plants, which tissue is primarily responsible for the unidirectional transport of water and minerals?
Match List I with List II and select the correct answer using the code given below: List I | List II A. Striated Muscle | 1. Cell body with axon and dendrites B. Smooth Muscle | 2. Spindle-shaped (pointed ends) C. Cardiac Muscle | 3. Cylindrical, branched D. Neuron | 4. Long, cylindrical, unbranched
Which of the following is the correct sequence of tissues from the outer surface to the inner part of a young plant stem?
What is the nature of the matrix in human blood?
With reference to 'Meristematic Tissue', the term 'Cambium' refers to
Consider the following statements regarding the 'Epidermis' of roots: 1. Its primary function is photosynthesis. 2. It commonly bears long hair-like parts. 3. It lacks a cuticle to facilitate water absorption. Which of the statements given above is/are correct?
Which plant tissue provides mechanical flexibility, allowing parts like tendrils to bend without breaking?
Which one of the following elements is absent in the phloem tissue of angiosperms?
In the context of the nervous system, the term 'Axon' refers to a distinct part of which cell type?
Consider the following statements regarding 'Complex Permanent Tissues': 1. They are made of more than one type of cell. 2. Each cell in the tissue functions independently without coordination. 3. Xylem and Phloem are examples of complex tissues. Which of the statements given above is/are correct?
Which plant tissue is primarily responsible for the hardness of seed coats and nut shells?
Consider the following statements about 'Epithelial Tissue' permeability: 1. It prevents any exchange of materials between the body and the external environment. 2. It regulates exchange between different parts of the body. 3. All substances entering the body must cross at least one layer of epithelium. Which of the statements given above are correct?
What is the primary function of contractile proteins in the human body?