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Different types of animal tissues - class-XI

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Refers to the items listed under different groups in the given table and select the option which correctly indentifies $X$ and $Y$.

Group I Group II
TapewormHookwormLiver fluke      X VultureHyena   YJackal
  1. X - Pinworm, Y - Crow

  2. X - Mosquito, Y - Bison

  3. X - Leech, Y - Koala

  4. X - Bed bug, Y - Wildbeest


Correct Option: A
Explanation:

Group 1 represents various members of the Phylum Platyhelminthes while Group 2 includes members of class Aves of vertebrata.

Pinworm and Crow are included in Phylum Platyhelminthes and Aves respectively.
So, the correct option is 'X - Pinworm, Y - Crow'.

Ubisch bodies are connected with the formation of?

  1. Sporopollenin

  2. Intine and pollenkitt

  3. Exine

  4. Pollenkit and pollinia


Correct Option: C
Explanation:
When the anther is young, at the stage of sporogenous tissue, the cells of the tapetum contain numerous spherical bodies called pro-ubisch bodies. The number of pro-ubisch bodies increases by meiosis in Pollen mother cells. These pro-ubisch bodies get coated by sporopollenin and are called ubisch bodies or orbicules. These are involved in the formation of exine of the pollen grains. Thus, the correct answer is option C, Exine.

From the list of characters given. Choose the characteristic which are exclusive to birds.
(a) Pneumatic bones
(b) Lungs with air sacs
(c) Four chambered heart
(d) Homoithermy
(e) Feathers
(f) Scales
(g) Crop and gizzard.

  1. (a), (b), (d), (e) & (g)

  2. (a), (b) & (e)

  3. (a), (b)

  4. (e) only


Correct Option: A

Unlike animals, plants get energy in the form of

  1. ATP

  2. Soil

  3. Roots

  4. Water


Correct Option: A
Explanation:

Chloroplasts contain a pigment called chlorophyll. Chlorophyll is able to capture the energy from the sun. In doing this, a series of chemical reactions occur that convert the sun's energy into ATP (energy for the plant). 

Therefore, the correct answer is option A.

How many different types of tissues are found in human body?

  1. $4$

  2. $14$

  3. $12$

  4. $40$


Correct Option: A
Explanation:

There are four types tissues found in human body namely the muscular, epithelial, connective and nervous.

The integral component of the nervous tissue is 

  1. Axon

  2. Neuron

  3. Cyton

  4. None of the above


Correct Option: B
Explanation:
The nervous system has a function in the control and coordination of the body. It consists of nervous tissue. Nervous tissues contain highly specialized cells called neurons or nerve cells. 
So, the correct answer is 'Neurons'.

Cell body is known as

  1. Axon

  2. Cyton

  3. Neuron

  4. None of he above


Correct Option: B
Explanation:
Neurons are made up of three parts: cell body, dendrites, and axon. The cell body is also known as cyton consists of nucleus and cytoplasm. Dendrites are short branches arising from cell body whereas axon is a long cylindrical projection of uniform thickness.
So, the correct answer is 'Cyton'.

The voluntary muscles are known as

  1. Striated muscles

  2. Cardiac muscles

  3. Unstriated muscles

  4. None of the above


Correct Option: A
Explanation:
Striated muscles or skeletal muscles are the most abundant type of muscle fibers found attached to the bones. They are multinucleated and voluntary in nature. They help in the movement of different parts of the body.
So, the correct answer is 'Striated muscles'.

Which of the following characteristics can be related to cardiac muscles?

  1. They are striated.

  2. They are involuntary muscles.

  3. They are less prone to fatigue.

  4. All of the above


Correct Option: D
Explanation:
The cardiac muscles are present on the wall of the heart. These muscles are striated muscles but involuntary in nature. They are under the control of the autonomic nervous system. Due to the presence of large number of mitochondria, they have the continuous supply of oxygen and hence these muscles are less prone to fatigue.
So the correct answer is 'All of the above'.

The squamous epithelium is mainly involved in

  1. Protection

  2. Absorption

  3. Secretion

  4. None of these


Correct Option: A
Explanation:

Squamous epithelium is a type of epithelium tissue. The cells of this tissue are thin, flat and closely packed. These are found in cavities of mouth, oesophagus, alveoli and blood vessels. This tissue gives protection against mechanical injury and also blocks the entry of pathogens or germs. 

So, the correct option is 'Protection'.

Population of ferocious Red Ant is kept under check by _______________.

  1. Rufus Wood Pecker

  2. Red-billed Ox Pecker

  3. Yellow-billed Ox-Pecker

  4. Sparrow


Correct Option: A

Which of the following levels of structure encompasses all the other?

  1. Tissue

  2. Cell

  3. Organism

  4. Organ or organ system


Correct Option: A

Choose the correct answers from the alternatives given.
Which one of the following is not a characteristic of animals?

  1. Heterotrophic

  2. Diplontic life cycle

  3. Have contracting fibres

  4. Single cells or colonial


Correct Option: D
Explanation:

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

So, the correct option is 'Single cells or colonial'.

The bundle of axon is known as

  1. Nerve

  2. Cyton

  3. Axon

  4. None of these


Correct Option: A
Explanation:
Axon is a part of nerve cells or neurons. The bundle of the axon is called a nerve in the peripheral nervous system while it is called a tract in the central nervous system. 
So, the correct answer is 'Nerve'
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