Types of Animal Tissues Practice Questions
39 free Types of Animal Tissues practice questions for the NCERT Biology. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Which type of epithelial tissue is composed of a single thin layer of flattened cells with irregular boundaries and is found in the walls of blood vessels?
- A Cuboidal epithelium
- B Columnar epithelium
- C Squamous epithelium
- D Ciliated epithelium
Correct answer: Squamous epithelium
Squamous epithelium consists of a single layer of flat cells. It is primarily involved in functions like forming a diffusion boundary, such as in the alveoli of lungs and blood vessel walls.
The ciliated epithelium is functional in moving particles or mucus in a specific direction. Where is it mainly present in the human body?
- A Ducts of salivary and sweat glands
- B Bronchioles and fallopian tubes
- C Tubular parts of nephrons in kidneys
- D Wall of the stomach and intestine
Correct answer: Bronchioles and fallopian tubes
Ciliated epithelium possesses hair-like projections called cilia. These cilia vibrate to move mucus through the bronchioles and eggs through the fallopian tubes.
Which junctions facilitate the cells to communicate with each other by connecting the cytoplasm of adjoining cells for rapid transfer of ions and molecules?
- A Tight junctions
- B Adhering junctions
- C Gap junctions
- D Desmosomes
Correct answer: Gap junctions
Gap junctions provide cytoplasmic channels between adjacent cells. This allows for the quick passage of ions, small molecules, and sometimes big molecules between cells.
Which of the following is the most abundant and widely distributed tissue in the body of complex animals?
- A Epithelial tissue
- B Connective tissue
- C Muscular tissue
- D Neural tissue
Correct answer: Connective tissue
Connective tissues are named for their special function of linking and supporting other tissues/organs. They range from soft connective tissues to specialized types like cartilage, bone, and blood.
In almost all connective tissues, except ______, the cells secrete fibers of structural proteins called collagen or elastin.
- A Cartilage
- B Bone
- C Blood
- D Adipose tissue
Correct answer: Blood
Blood is a fluid connective tissue that lacks structural fibers. Other connective tissues rely on collagen or elastin fibers for strength, elasticity, and flexibility.
Which type of connective tissue serves as a support framework for epithelium and contains fibroblasts, macrophages, and mast cells?
- A Adipose tissue
- B Areolar tissue
- C Dense regular tissue
- D Dense irregular tissue
Correct answer: Areolar tissue
Areolar tissue is a type of loose connective tissue located beneath the skin. It contains a semi-fluid ground substance with fibers and diverse cell types like fibroblasts.
Identify the tissue that is specialized to store fats and is located mainly beneath the skin.
- A Areolar tissue
- B Adipose tissue
- C Tendons
- D Ligaments
Correct answer: Adipose tissue
Adipose tissue is a loose connective tissue where cells are specialized to store fats. Excess nutrients which are not utilized immediately are converted into fats and stored in this tissue.
Tendons and ligaments are examples of which type of tissue?
- A Loose connective tissue
- B Dense regular connective tissue
- C Dense irregular connective tissue
- D Specialized connective tissue
Correct answer: Dense regular connective tissue
In dense regular connective tissue, collagen fibers are present in rows between many parallel bundles of fibers. Tendons attach muscles to bones, while ligaments attach one bone to another.
The intercellular material of cartilage is solid and pliable and resists compression. The cells of this tissue are called:
- A Osteocytes
- B Chondrocytes
- C Fibroblasts
- D Mast cells and plasma cells
Correct answer: Chondrocytes
Chondrocytes are the cells of cartilage, enclosed in small cavities within the matrix secreted by them. Most of the cartilage in vertebrate embryos is replaced by bones in adults.
Osteocytes are present in spaces called ______ within the hard and non-pliable ground substance of bone.
- A Lacunae
- B Lamellae
- C Canaliculi
- D Pits
Correct answer: Lacunae
Bones have a hard matrix rich in calcium salts and collagen fibers. The bone cells (osteocytes) are located in fluid-filled spaces called lacunae.
Which muscle tissue is described as being 'striated' and 'voluntary' in nature?
- A Smooth muscle
- B Cardiac muscle
- C Skeletal muscle
- D Visceral muscle
Correct answer: Skeletal muscle
Skeletal muscles are closely attached to skeletal bones. They show distinct stripes (striations) under the microscope and are under the conscious control of the nervous system.
Smooth muscle fibers are 'fusiform' in shape. What does 'fusiform' mean?
- A Cylindrical with blunt ends
- B Tapering at both ends
- C Branching and interconnected
- D Flat and disc-like
Correct answer: Tapering at both ends
Smooth muscle fibers are spindle-shaped (fusiform), meaning they taper at both ends. They do not show striations and are involuntary in action.
Communication junctions (intercalated discs) are the unique characteristic feature of which tissue?
- A Skeletal muscle
- B Smooth muscle
- C Cardiac muscle
- D Neural tissue
Correct answer: Cardiac muscle
Cardiac muscle is found only in the heart. Intercalated discs at fusion points allow cells to contract as a unit; when one cell receives a signal, its neighbors contract as well.
The unit of the neural system which exerts the greatest control over the body's responsiveness to changing conditions is the:
- A Neuroglia
- B The neuron
- C Axon
- D Dendrite
Correct answer: The neuron
Neurons are excitable cells that are the structural and functional units of the nervous system. They are specialized for receiving and conducting impulses.
Which cells constitute more than one-half the volume of neural tissue in our body and protect/support neurons?
- A Nephrons
- B Neuroglial cells
- C Chondrocytes
- D Schwann nerve cells
Correct answer: Neuroglial cells
Neuroglia are non-excitable cells that make up the bulk of the nervous system. They provide support, nourishment, and protection to the neurons.
Where would you find simple cuboidal epithelium with microvilli in the human body?
- A Inner surface lining of the small intestine
- B Proximal convoluted tubule of the nephron
- C Inner lining of salivary gland duct walls
- D Air sacs of the lungs
Correct answer: Proximal convoluted tubule of the nephron
The cuboidal epithelium of the PCT in the kidney has microvilli. This modification increases the surface area for the reabsorption of essential nutrients and water.
Compound epithelium has a limited role in secretion and absorption. Its main function is:
- A Diffusion of gases across membranes
- B Filtration of blood at surfaces
- C Protection against chemical and mechanical stress
- D Movement of mucus along surfaces
Correct answer: Protection against chemical and mechanical stress
Compound epithelium is multi-layered. Since it is thick, its primary role is to provide protection, such as in the skin, buccal cavity, and pharynx.
What is the function of 'Tight Junctions' in epithelial tissues?
- A To glue neighboring cells together firmly
- B To prevent leakage across a tissue layer
- C To allow rapid ion transfer between cells
- D To anchor cells to the basement membrane
Correct answer: To prevent leakage across a tissue layer
Tight junctions help to seal the space between adjacent cells. This prevents the leakage of extracellular fluid across a layer of epithelial cells.
The walls of internal organs such as the blood vessels, stomach, and intestine contain which type of muscle fiber?
- A Striated and involuntary
- B Striated and voluntary
- C Non-striated involuntary
- D Non-striated and voluntary
Correct answer: Non-striated involuntary
Smooth muscles are located in the walls of visceral organs. They are non-striated and function involuntarily, meaning we cannot control them consciously.
Dense irregular connective tissue has fibroblasts and many fibers (mostly collagen) that are oriented differently. This tissue is found in the:
- A Dermis of the skin
- B Tendons
- C Ligaments
- D Cartilage
Correct answer: Dermis of the skin
Dense irregular connective tissue is characterized by an irregular pattern of fibers. It provides strength in multiple directions and is found in the dermis of the skin.
Which type of muscle tissue is involuntary and lacks striations?
- A Skeletal muscle
- B Cardiac muscle
- C Visceral muscle
- D Striated muscle
Correct answer: Visceral muscle
Visceral (smooth) muscle is non-striated and involuntary. It is found in the walls of internal organs like the stomach and intestine.
Which type of junction prevents leakage of substances between adjacent epithelial cells?
- A Gap junction
- B Tight junction
- C Adhering junction
- D Desmosome
Correct answer: Tight junction
Tight junctions form a seal between cells, preventing leakage. They are important in maintaining barriers.
Which connective tissue connects muscles to bones?
- A Ligament
- B Tendon
- C Cartilage
- D Bone
Correct answer: Tendon
Tendons connect muscles to bones. They are strong and made mainly of collagen fibers.
Which connective tissue connects bones to bones?
- A Tendon
- B Cartilage
- C Adipose tissue
- D Ligament
Correct answer: Ligament
Ligaments connect bones to bones. They provide stability to joints and are more elastic than tendons.
Which cells are responsible for transmitting nerve impulses?
- A Nerve cells
- B Neuroglia
- C Fibroblasts
- D Osteocytes
Correct answer: Nerve cells
Nerve cells (neurons) are specialized cells that transmit nerve impulses. They form the functional unit of the nervous system.
Which cells provide support and protection to neurons?
- A Neurons
- B Fibroblasts
- C Neuroglia
- D Chondrocytes
Correct answer: Neuroglia
Neuroglia are supporting cells in nervous tissue. They protect and nourish neurons.
Which type of muscle tissue is found in the heart?
- A Smooth muscle
- B Skeletal muscle
- C Cardiac muscle
- D Voluntary muscle
Correct answer: Cardiac muscle
Cardiac muscle is found only in the heart. It is striated and involuntary with unique intercalated discs.
Which epithelial tissue is involved in secretion and has tall cells?
- A Squamous epithelium
- B Cuboidal epithelium
- C Columnar epithelium
- D Stratified epithelium
Correct answer: Columnar epithelium
Columnar epithelium consists of tall cells and is specialized for secretion and absorption. It lines the digestive tract.
Which connective tissue stores fat?
- A Adipose tissue
- B Areolar tissue
- C Cartilage
- D Bone
Correct answer: Adipose tissue
Adipose tissue stores fat. It acts as an energy reserve and provides insulation.
Which tissue forms the supportive framework of the body?
- A Epithelial tissue
- B Muscular tissue
- C Connective tissue
- D Nervous tissue
Correct answer: Connective tissue
Connective tissue supports and binds different tissues. It includes bone, cartilage, and blood.
Which cells are found in cartilage?
- A Chondrocytes
- B Osteocytes
- C Fibroblasts
- D Chondroblasts
Correct answer: Chondrocytes
Chondrocytes are the cells of cartilage. They are embedded in a firm but flexible matrix.
Which type of connective tissue has a fluid matrix?
- A Bone
- B Cartilage
- C Areolar tissue
- D Blood
Correct answer: Blood
Blood is a connective tissue with a fluid matrix called plasma. It transports nutrients and gases.
Which epithelial tissue is multilayered and provides protection?
- A Stratified squamous
- B Simple squamous
- C Columnar epithelium
- D Cuboidal epithelium
Correct answer: Stratified squamous
Stratified squamous epithelium has multiple layers. It protects against mechanical stress.
Which muscle tissue is voluntary and striated?
- A Smooth muscle
- B Cardiac muscle
- C Visceral muscle
- D Skeletal muscle
Correct answer: Skeletal muscle
Skeletal muscle is voluntary and striated. It is attached to bones and helps in movement.
Which structure connects adjacent cells for communication?
- A Gap junction
- B Tight junction
- C Desmosome
- D Adherens junction
Correct answer: Gap junction
Gap junctions allow direct communication between cells. They enable transfer of ions and small molecules.
Which connective tissue is rigid and supports the body?
- A Bones
- B Cartilage
- C Blood
- D Adipose
Correct answer: Bones
Bones are hard connective tissue. They provide support and protection to internal organs.
Which epithelial tissue lines the inner surface of blood vessels?
- A Stratified epithelium
- B Simple cuboidal
- C Columnar epithelium
- D Simple squamous
Correct answer: Simple squamous
Simple squamous epithelium lines blood vessels. It allows easy diffusion of substances.
Which muscle tissue has intercalated discs?
- A Skeletal muscle
- B Smooth muscle
- C Striated muscle
- D Cardiac muscle
Correct answer: Cardiac muscle
Cardiac muscle has intercalated discs. These structures help in synchronized contraction.
Which connective tissue is found between organs and supports them?
- A Bone
- B Cartilage
- C Adipose tissue
- D Areolar tissue
Correct answer: Areolar tissue
Areolar tissue fills spaces between organs. It provides support and flexibility.