Tag: breath and blood of life

Questions Related to breath and blood of life

Which one of the following helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem ?

botany breath and blood of life stomata and transpiration transport in organisms long distance transport of water different types of circulatory systems

  1. translocation

  2. transportation

  3. transpiration

  4. transaction

Show answer
Correct Option: C
Explanation:

The continuous evaporation of water (or transpiration) from the cells of a leaf crates a kind of suction which pulls up water through the xylem vessles. Thus, transpiration helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem.

The process in which loss of water occurs in the form of water vapour is

botany breath and blood of life stomata and transpiration transport in organisms long distance transport of water different types of circulatory systems

  1. Respiration

  2. Guttation

  3. Transpiration

  4. Exosmosis

Show answer
Correct Option: C
Explanation:
Respiration  is a process in which living organisms produces energy, with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
Guttation is the loss of water in the form of water droplets from hydathodes (small pores) on the leaf margin of a plant.
Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.
The passage of material through a semi-permeable membrane from a region of higher to a region of lower concentration, especially the passage of water through a cell membrane into the surrounding medium, is called exosmosis. 
Thus, the correct answer is option (C). 

A leafy twig of mesophytic plant dipped in water would demonstrate 

botany breath and blood of life stomata and transpiration transport in organisms long distance transport of water different types of circulatory systems

  1. Photosynthesis

  2. Transpiration

  3. Respiration

  4. Gutttation

Show answer
Correct Option: B
Explanation:
Mesophytic plants are the plants which grow in the areas/lands which is not too dry not too wet.
When this type of plant is dipped in water (making hydrophytic) then it will demonstrate transpiration More will be the amount of water and more will be the transpiration rate.
Biochemical processes like photosynthesis, respiration and guttation do not depend upon the nature of land but transpiration depends upon the amount of water present in the soil.
So, the correct answer is 'Transpiration'.

Insect tracheal system opens to the outside through 

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. Spiral value

  2. Pecten

  3. Spiracle

  4. Taenidia

Show answer
Correct Option: A

Which of the following option is correct regarding the characteristics of the diaphragm?


(A) Found in mammals.
(B) Separate the thoracic and Abdominal cavity.
(C) Formed by inter-costal muscles.
(D) Due to its contraction volume of thoracic cavity increases on Anterior-Posterior axis.

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. A, C and D are correct

  2. A, B and D are correct

  3. B, C and D are incorrect

  4. A, B and C are incorrect

Show answer
Correct Option: A
Explanation:

  • The diaphragm is the type of skeletal muscle found in mammals which plays a major role in respiration. It is a dome-shaped structure and moves in and out at the time of respiration. Its muscles separate the thoracic cavity having heart and lungs from the abdominal cavity. 
  • During inhalation, the diaphragm contracts and chest cavity increases to get more oxygen while in exhalation diaphragm relaxes and the chest cavity decreases and releases carbon dioxide.

So, the correct option is 'Found in mammals, Separate the thoracic and Abdominal cavity, and Due to its contraction volume of the thoracic cavity increases on Anterior-Posterior axis'.

During respiration exchange of gases takes place in _________.

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. Trachea

  2. Alveoli

  3. Throat

  4. Larynx

Show answer
Correct Option: A

Which of the following changes occur in diaphargm relax and intercostal muscles when expiration of air takes place?

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. External intercostal muscles relax and diaphargm contracts

  2. External intercostal muscles contract and diaphargm relax.

  3. External intercostal muscles contract and diaphargm relaxes

  4. External intercostal muscles and diaphargm contract

Show answer
Correct Option: A

One of the following depend more on ribs and their muscles for breathing than diaphragm.

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. Female (human)

  2. Monkey

  3. Kangaroo

  4. All of the above

Show answer
Correct Option: D
Explanation:

The ribs and the various muscles of respiration aid in both inspiration and expiration, which require changes in the pressure within the thoracic cavity. The important respiratory muscles are the diaphragm, the external intercostal and the internal intercostal muscles. The ribs and the respiratory muscles work to achieve this by changing the dimensions of the thoracic cavity.
When a person inhales, the rib cage move out and up in order to accommodate the incoming air. On the other hand, when a person exhales, the rib cage move in, in order to expel the carbon dioxide. Both the external intercostal muscles and the internal intercostal muscles elevate the ribs, thus increasing the width of the thoracic cavity, while the diaphragm contracts to increase the vertical dimensions of the thoracic cavity, and also aids in the elevation of the lower ribs. The muscles that connect the ribs together ensure that the diaphragm can expand and contract appropriately as air is breathed in and expelled. Thus, in mammals, breathing depends more on ribs and their muscles for breathing than diaphragm.

The respiratory organs in cockroach are

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. Lungs

  2. Gills

  3. Lenticels

  4. Spiracles

Show answer
Correct Option: D
Explanation:

  • Spiracles are openings on the surface of some animals, which usually lead to respiratory systems. 
  • The spiracle is a small hole behind each eye that opens to the mouth. Insects and some more derived spiders have spiracles on their exoskeletons to allow air to enter the trachea.
  •  In the respiratory system of insects, the tracheal tubes primarily deliver oxygen directly into the animals' tissues. 
  • The spiracles can be opened and closed in an efficient manner to reduce water loss. Hence, The respiratory organs in cockroach are spiracles.
So, the correct answer is 'spiracles'.

______ is the muscle responsible in respiration.

biology breath and blood of life human respiration the mechanism of breathing breathing and its movements

  1. Diaphragm

  2. Muscle tissue

  3. Heart

  4. Lungs

Show answer
Correct Option: A
Explanation:

Diaphragm is a muscular and tendinous sheath that closes the opening between thorax and abdomen and is pierced by structures that pass between these two regions of the body. The diaphragm is the primary muscle of respiration. Diaphragm is the primary respiratory muscle of the body. It, on contraction, increases the vertical diameter of the chest cavity by pulling its central tendon downwards. In this way, the lungs get extra space to expand and air rushes into them.