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Tissue - 1

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In which of the following organisms are activities like intracellular digestion, metabolism, respiration, etc. done by the same single cell?

  1. Cynobacteria

  2. Rotifers

  3. Earthworm

  4. Spider

  5. Amoeba


Correct Option: E
Explanation:

This is the correct option. In amoeba, activities like intracellular digestion, metabolism, respiration, etc. are all done by the same single cell.

Which of the following statements is/are false?

a. All neurons of the nervous tissue have originated from the same germinal layer called dendrites. b. Tissues become organised to form organs and organs are formed into an organ system. c. Workload of individual cells has decreased due to the origin of tissues.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: A
Explanation:

This is the correct option as this statement is false. All neurons of the nervous tissue originated from the same germinal layer called ectoderm, not dendrites.

Who among the following is considered as the 'father of histology'?

  1. Marie Francois Xavier

  2. Marcello Malpighi

  3. Mayer

  4. J. E. Purkinje

  5. Jakob Matthias Scleiden


Correct Option: A
Explanation:

This is the correct option as Marie Francois Xavier is considered as the 'father of histology'.

Which of the following is not a type of meristematic tissue?

  1. Apical

  2. Parenchyma

  3. Lateral

  4. Intercalary

  5. None of these


Correct Option: B
Explanation:

This is the correct option as parenchyma is not a meristematic tissue. It is a permanent tissue. Permanent tissues are those tissues that are composed of cells which are structurally and functionally similar.

Parenchymatous tissue is found in the soft parts of the plant such as the

  1. cortex of roots

  2. midribs of dicot leaves

  3. epidermis of dicotyledon stem

  4. petiole

  5. hard covering of seeds and nuts


Correct Option: A
Explanation:

This is the correct option. Parenchymatous tissue is found in the soft parts of a plant such as the cortex of roots.

Which of the following have an isodiametric shape?

  1. Collenchyma

  2. Sclerenchyma

  3. Parenchyma

  4. Apical meristematic

  5. Intercalary meristematic


Correct Option: C
Explanation:

This is the correct option. Parenchyma cells are isodiametric. They are equally expanded on all sides.

Which of the following performs the function of protecting the plant from desiccation and infection?

  1. Stroma

  2. Epidermis

  3. Cuticle

  4. Cytoplasm

  5. Nucleus


Correct Option: B
Explanation:

This is the correct option. The main function of epidermis is to protect the plant from desiccation and infection.

Which of the following are also known as a 'vascular tissue'?

  1. Apical tissue

  2. Collenchyma

  3. Intercalary tissue

  4. Phloem

  5. Parenchyma


Correct Option: D
Explanation:

This is the correct option. Phloem is also known as a 'vascular tissue'.

Which of the following statements is/are false?

a. Sclereids occur singularly or in small groups. b. Sclereids provide mechanical strength to the plant. c. Sclerenchyma fibres are elongated, spindle-shaped, thick-walled dead cells.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: C
Explanation:

This is the correct option as this statement is false. Sclereids provide stiffness and not mechanical strength to the plant.

Which of the following is not a connective animal tissue?

  1. Areolar tissue

  2. Adipose tissue

  3. Ciliated tissue

  4. Skeletal tissue

  5. Fluid tissue


Correct Option: C
Explanation:

This is the correct option as ciliated tissue is not a connective animal tissue. It is an epithelial animal tissue.

_____________ is also known as the tesselated and pavement epithelium.

  1. Squamous epithelium

  2. Cuboidal epithelium

  3. Columnar epithelium

  4. Glandular epithelium

  5. Ciliated epithelium


Correct Option: A
Explanation:

This is the correct option. Squamous epithelium is made of thin, flat, irregular-shaped cells which fit together like floor tiles to form a compact tissue.

Which of the following are also known as striped, skeletal or voluntary muscles?

  1. Smooth muscles

  2. Cardiac muscles

  3. Tendons

  4. Ligaments

  5. Striated muscles


Correct Option: E
Explanation:

This is the correct option. Striated muscles are also known as striped, skeletal or voluntary muscles due to their properties.

Which of the following do not belong to connective tissue?

  1. Fibroblasts

  2. Adipose cells

  3. Macrophages

  4. Prokaryotic cells

  5. Mast cells


Correct Option: D
Explanation:

This is the correct option. Prokaryotic cells are not connective tissues. A prokaryote is a single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelles.

Which of the following is waterproof and highly resistant to mechanical injuries?

  1. Cuboidal epithelium

  2. Columnar epithelium

  3. Stratified squamous epithelium

  4. Ciliated epithelium

  5. Glandular epithelium


Correct Option: C
Explanation:

This is the correct option. Stratified squamous epithelium is waterproof and highly resistant to mechanical injuries. This is found in the skin and covers the external dry surface of the skin.

Which of the following is not a function of areolar tissue?

  1. It acts as a supporting and packing tissue between the organs lying in the body cavity.

  2. It helps in the repair of tissues after an injury.

  3. It provides support and flexibility to the body parts.

  4. It helps in combating foreign toxins.

  5. It fixes skin to the underlying muscles.


Correct Option: C
Explanation:

This is the correct option as this is not a function of areolar tissue. To provide support and flexibility to the body parts is a function of cartilage. 

Which of the following tissues is found below the skin and between the internal organs?

  1. Adipose tissue

  2. Areolar tissue

  3. Dense regular connective tissue

  4. Skeletal tissue

  5. Fluid connective tissue


Correct Option: A
Explanation:

This is the correct option as adipose tissue is abundant below the skin and between the internal organs.

Which of the following statements is/are false?

a. Striated muscles are powerful and undergo rapid contraction. b. Smooth muscles occur in the muscles of limbs, body wall, face, neck, etc. c. Each smooth muscle is enclosed in a plasma membrane and has a single centrally located cigar-shaped nucleus in the centre of the cytoplasm.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: C
Explanation:

This is the correct option as this statement is false. Smooth muscles are found in the stomach, intestines, walls of alimentary canal, etc, not in the muscles of limbs, body wall, face, neck, etc. The muscles of limbs, body wall, face, neck, etc. are striated muscles.

Which of the following proteins is not included in the matrix of bone?

  1. Osteonectin

  2. Proteoglycan

  3. Collagen

  4. Actin

  5. Osteocalcin


Correct Option: D
Explanation:

This is the correct option as actin is a protein that is not included in the matrix of bone.

Which of the following tissues specialises in transmitting messages within our body?

  1. Adipose tissue

  2. Areolar tissue

  3. Nervous tissue

  4. Skeletal tissue

  5. Fluid connective tissue


Correct Option: C
Explanation:

This is the correct option as nervous tissues are the tissues that specialise in transmitting messages within our body. They contain neurons that have the ability to receive stimuli from within or outside the body and to conduct impulses to different parts of the body.

Which of the following statements is/are false?

a. Vessels in xylem are made of a row of cells. b. In vessels, the end (transverse) walls get dissolved and become perforated. c. The walls of tracheids are thinner with a wider lumen.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only c

  5. Only b and c


Correct Option: D
Explanation:

This is the correct option as this statement is false. The walls of tracheids are very thick with a narrow lumen, not thinner with a wider lumen. This is a wrong option as statement 'b' is true, but statement 'c' is false.

Blood is a type of

  1. areolar tissue

  2. squamous tissue

  3. striated tissue

  4. fluid tissue

  5. adipose tissue


Correct Option: D
Explanation:

This is the correct option as blood is a type of fluid tissue.

____________ forms the delicate lining of mouth, nose, etc. and the covering of tongue and skin.

  1. Cuboidal epithelium

  2. Columnar epithelium

  3. Glandular epithelium

  4. Ciliated epithelium

  5. Squamous epithelium


Correct Option: E
Explanation:

This is the correct option. Squamous epithelium forms the delicate lining of mouth, nose, etc. and the covering of tongue and skin.

Which of the following statements is/are false?

a. In columnar epithelium, the component cells are thin and flat. b. In squamous epithelium, the nucleus lies in the centre of the cell which generally bulges out. c. The columnar epithelium forms lining of gall bladder and oviducts, and facilitates movement across the cells.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only b and c

  5. Only c


Correct Option: A
Explanation:

This is the correct option as this is a false statement. In columnar epithelium, the component cells are pillar-like, and not thin and flat.

Which of the following cells in a plant organ helps the organism to perform conduction of water?

  1. Phloem

  2. Epidermis

  3. Xylem

  4. Cambium

  5. Collenchyma


Correct Option: C
Explanation:

This is the correct option. 

Which of the following elements of phloem consist(s) of dead cells?

  1. Sieve tubes

  2. Companion cells

  3. Phloem parenchyma

  4. Phloem fibres

  5. None of these


Correct Option: D
Explanation:

This is the correct option as phloem fibres are dead cells which possess narrow lumen. They provide mechanical strength to the tissue.

Which of the following is not a characteristic of meristematic tissue?

  1. Its component cells are small, spherical or polygonal and undifferentiated.

  2. Intercellular spaces are absent.

  3. Cell wall of its cells is thin and elastic.

  4. A large central vacuole occurs in living permanent cells.

  5. Its cells grow and divide regularly.


Correct Option: D
Explanation:

This is the correct option as this is not a characteristic of the meristematic tissue. Cytoplasm is dense in it. Vacuoles are nearly absent.

Which of the following is not a function of parenchyma?

  1. Parenchyma acts as a primary support to the stem of herbaceous plants.

  2. Parenchyma stores and assimilates food.

  3. Transport of material occurs through cell walls of parenchyma cells.

  4. It is a mechanical tissue in young dicotyledonous stems and provide mechanical support and elasticity.

  5. The intercellular air spaces of parenchyma cells allow gaseous exchange.


Correct Option: D
Explanation:

This is the correct option as this is not a function of parenchyma.

The walls of cork cells are heavily thickened with an organic substance called

  1. epidermis

  2. suberin

  3. phelloderm

  4. cutin

  5. pectin


Correct Option: B
Explanation:

This is the correct option. The walls of cork cells are heavily thickened with an organic substance called suberin. Suberin makes these cells impermeable to water and gases. 

Match the following:

a. Apical meristems 1. These are located at the base of leaves and internodes.
b. Lateral meristems 2. These are found beneath the bark and in vascular bundles of dicot roots and stems.
c. Intercalary meristems 3. These are situated at the growing tip of stems and roots.
  1. a - 3, b - 1, c - 2

  2. a - 3, b - 2, c - 1

  3. a - 2, b - 3, c - 1

  4. a - 1, b - 3, c - 2

  5. a - 1, b - 2, c - 3


Correct Option: B
Explanation:

Apical meristems - These are situated at the growing tip of stems and roots. Lateral meristems - These are found beneath the bark and in vascular bundles of dicot roots and stems. Intercalary meristems - These are located at the base of leaves and internodes.

The cell walls of sclerenchyma are greatly thickened with

  1. xylem

  2. phloem

  3. lignin

  4. aerenchyma

  5. epidermis


Correct Option: C
Explanation:

This is the correct option. The cell walls of sclerenchyma are greatly thickened with lignin. Lignin is a complex polymer which acts as a cement and hardens the cell walls.

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