The exchange of gases in mammals takes place in the (a) larynx (b) trachea (c) alveoli (d) bronchi

The exchange of gases in mammals takes place in the (a) larynx (b) trachea (c) alveoli (d) bronchi
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In man and mammals, air passes from outside into the lungs through (a) nasal cavity, larynx, pharynx, trachea, bronchi, alveoli (b) nasal cavity, larynx, pharynx, trachea, bronchioles, alveoli (c) nasal cavity, pharynx, larynx, trachea, bronchioles, bronchi, alveoli (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

Description : In man and mammals, air passes from outside into the lungs through (a) nasal cavity, larynx, pharynx, trachea, bronchi, alveoli (b) nasal cavity, larynx, pharynx, trachea, bronchioles, ... bronchioles, bronchi, alveoli (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

Last Answer : (d) nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, alveoli.

How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles, Alveolar duct, Alveol

Description : How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles, Alveolar duct, Alveol

Last Answer : How many structures are supported by cartilaginous rings ? Larynx, Trachea, Bronchi, Initial bronchioles, Terminals bronchioles ... . 7 B. 3 C. 4 D. 5

Cartilage present in trachea , larynx and bronchi is

Description : Cartilage present in trachea , larynx and bronchi is

Last Answer : Cartilage present in trachea , larynx and bronchi is A. Fibrous B. Elastic C. Hyaline D. Caicified.

When food is swallowed the swallow reflex is activated and the larynx elevates and closes to avoid portions of the food bolus entering the trachea causing aspiration of strange material to the bronchi. Digestion System - Image Diversity: esophagus

Description : When food is swallowed the swallow reflex is activated and the larynx elevates and closes to avoid portions of the food bolus entering the trachea causing aspiration of strange material to the bronchi. Digestion System - Image Diversity: esophagus

Last Answer : Is the esophagus a muscular organ?

Which one of the following is NOT part of the lower respiratory system? a. Alveoli b. Pharynx c. Larynx d. Trachea

Description : Which one of the following is NOT part of the lower respiratory system? a. Alveoli b. Pharynx c. Larynx d. Trachea

Last Answer : b. Pharynx

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.

The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Description : The exchange of gases in the alveoli of the lungs takes place by (a) passive transport (b) active transport (c) osmosis (d) simple diffusion.

Last Answer : d) simple diffusion.

The C shaped ring of trachea and bronchi are made of

Description : The C shaped ring of trachea and bronchi are made of

Last Answer : cartilage.

Emphysema is described as: a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD. b) A disease that results in a common clinical outcome of reversible airflow obstruction. Asthma is the disease described. c) The presence of cough and sputum production for at least a combined total of two or three months in each of two consecutive years. Bronchitis is the disease described. d) Chronic dilatation of a bronchus or bronchi Bronchiectasis is the condition described.

Description : Emphysema is described as: a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD. b) A disease that results in ... disease described. d) Chronic dilatation of a bronchus or bronchi Bronchiectasis is the condition described.

Last Answer : a) A disease of the airways characterized by destruction of the walls of overdistended alveoli. Emphysema is a category of COPD.

The digestive and respiratory passages cross in the (a) pharynx (b) larynx (c) esophagus (d) trachea

Description : The digestive and respiratory passages cross in the (a) pharynx (b) larynx (c) esophagus (d) trachea

Last Answer : Ans:(b)

Inhaled air passes through which of the following in the last? A. Bronchiole (Answer) B. Larynx C. Pharynx D. Trachea E. None of these

Description : Inhaled air passes through which of the following in the last? A. Bronchiole (Answer) B. Larynx C. Pharynx D. Trachea E. None of these

Last Answer : A. Bronchiole (Answer)

Find out the correct match from the following `:-` (i) Larynx -sound box (ii) Trachea - complete cartilagenous rigns (iii) Epiglottis -elastic cartila

Description : Find out the correct match from the following `:-` (i) Larynx -sound box (ii) Trachea - complete cartilagenous rigns (iii) Epiglottis -elastic cartila

Last Answer : Find out the correct match from the following `:-` (i) Larynx -sound box (ii) Trachea - complete cartilagenous rigns ( ... ),(v)` D. `(i)` and `(v)`

In rabbit food does not normally enter into the wind pipe because during feeding (a) Epiglottis and tongue cover the glottis (b) Nodule called cartilage of santorini plug the larynx (c) The cartilage called arytenoid lie between larynx and glottis (d) The circular muscles at the front of trachea contract and close its opening

Description : In rabbit food does not normally enter into the wind pipe because during feeding (a) Epiglottis and tongue cover the glottis (b) Nodule called cartilage of santorini plug the larynx (c) The ... larynx and glottis (d) The circular muscles at the front of trachea contract and close its opening

Last Answer : (a) Epiglottis and tongue cover the glottis

How are the alveoli designed to maximise the exchange of gases ? -Biology

Description : How are the alveoli designed to maximise the exchange of gases ? -Biology

Last Answer : (i) The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli. (ii) Alveoli have balloon-like structure. Hence, provide maximum surface for exchange of gases.

How are the alveoli designed to maximise the exchange of gases? -Biology

Description : How are the alveoli designed to maximise the exchange of gases? -Biology

Last Answer : Alveoli are small pouches or sacs like structure. They are surrounded by blood capillaries. Thus a large amount of air is brought in contact with the air in the lungs. More than millions of ... area for the exchange of gases. The availability of large surface area maximises the exchange of gases.

Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(

Description : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason `:-` In the alveoli `P_(CO_(2))` is low and `P_(

Last Answer : Assertion `:-` In the alveoli, dissociation of `CO_(2)` from carbamino-haemoglobin takes place Reason ` ... . D. If both Assertion & Reason are false.

(a) “The breathing cycle is rhythmic whereas exchange of gases is a continuous process”. Justify this statement. (b) What happens if conducting tubes of circulatory system develops a leak? State in brief, how could this be avoided? (c) How opening and closing of stomata takes place? -Biology

Description : (a) “The breathing cycle is rhythmic whereas exchange of gases is a continuous process”. Justify this statement. (b) What happens if conducting tubes of circulatory system develops a leak? State in brief, how could this be avoided? (c) How opening and closing of stomata takes place? -Biology

Last Answer : (a) The breathing cycle involves inhalation and exhalation of air due to alternate expansion and contraction of thoracic cavity. Thus it is a rhythmic process. But exchange of gases is a continuous process ... pore opens up. When water moves out the guard cells shrinks and the stomatal pore closes.

(a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon – like structures (iii) balloon – like structures where exchange of gases takes place. (iv) part which separates chest cavity from abdominal cavity. (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology

Description : (a) Draw a diagram of human respiratory system and label the following: (i) part where air is filtered by fine hair and mucus (ii) part which terminates in balloon - like structures (iii) ... (b) Why is the rate of breathing in aquatic organisms much faster than in terrestrial organisms? -Biology

Last Answer : (a) (b) Quantity of dissolved oxygen is fairly low in water as compared to the amount of oxygen in air. Aquatic organisms therefore have to breath faster than terrestrial organisms to absorb the required amount of oxygen from the water.

The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part, A,

Description : The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part, A,

Last Answer : The figure given below shows a small part of human lung where exchange of gases takes place. In which ... red blood cell-transport of `CO_(2)` mainly

The exchange of gases takes place in the leaves through these pores for the purpose of photosynthesis. These pores are called – (1) Guard Cells (2) Stomata (3) Chloroplast (4) None of the above

Description : The exchange of gases takes place in the leaves through these pores for the purpose of photosynthesis. These pores are called – (1) Guard Cells (2) Stomata (3) Chloroplast (4) None of the above

Last Answer : (2) Stomata Explanation: Stomata are tiny pores present on the surface of the leaves via which exchange of gases takes place in the leaves for the purpose of photosynthesis. However, exchange of gases also occurs across the surface of stems, roots and leaves as well.

How exchange of gases takes place in terrestrial animals?

Description : How exchange of gases takes place in terrestrial animals? 

Last Answer : Through Trachea: - Insects and other land arthropods use tracheal tubes for exchange of gases. This is very simple and effective method. These animals have network of tracheal tubes. These tubes on ... In them the respiratory system consists of alveoli. Birds have air sacs in addition to lungs. 

The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. (a) C : Arterial capillary - Passes oxygen to tissues (b) A : Alveolar cavity - Main site of exchange of respiratory gases (c) D : Capillary wall - Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Description : The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (A, B, C or D) correctly identified along with its function. ... Exchange of O2 and CO2 takes place here (d) B : Red blood cells - Transport of CO2 mainly

Last Answer : (b) A : Alveolar cavity - Main site of exchange of respiratory gases

How is the alveoli adapted for gas exchange between air in the lungs and blood in the capillaries?

Description : How is the alveoli adapted for gas exchange between air in the lungs and blood in the capillaries?

Last Answer : Need answer

What is the physical process through which gas exchange is accomplished in the pulmonary alveoli?

Description : What is the physical process through which gas exchange is accomplished in the pulmonary alveoli?

Last Answer : The gas exchange (entry of oxygen and exit of carbon dioxide) in the pulmonary alveoli occurs by simple diffusion in favor of the partial pressure gradient. When the oxygen partial pressure in the ... is venous blood) the oxygen exits the circulatory system. The same is true for carbon dioxide.

What process takes at the boundary between capillaries and the alveoli?

Description : What process takes at the boundary between capillaries and the alveoli?

Last Answer : The exchange of carbon dioxide to the lungs and oxygen from thelungs.

The fertilisation in mammals including human beings takes place in

Description : The fertilisation in mammals including human beings takes place in

Last Answer : The fertilisation in mammals including human beings takes place in A. Vestibule B. Vagina C. Fallopian tubes D. Uterus

(a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to lungs, Aorta to body, Pulmonary veins from lungs. (b) What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

Description : (a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to ... the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

Last Answer : (a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings (b) It is necessary to separate oxygenated and deoxygenated ... . The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.

How is gas exchange done in mammals?

Description : How is gas exchange done in mammals?

Last Answer : Mammals breathe through lungs, their respiration is pulmonary.

When does diffusion of gases takes place?

Description : When does diffusion of gases takes place?

Last Answer : Diffusion of gases takes place when the gases do not react with one another.

after atoms and molecules of gases and liquids are heated they move away from the heat . what takes their place?

Description : after atoms and molecules of gases and liquids are heated they move away from the heat . what takes their place?

Last Answer : ions

How excretion of gases, water & material takes place in plants?

Description : How excretion of gases, water & material takes place in plants?

Last Answer : Removal of Gases: - Green plants give off oxygen as waste in the daytime and carbon dioxide at night. Removal of Water: - Excess water is removed as water vapour by the process of ... ducts and canals present in the body of plants. They trickle out with the damaged parts. 

Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.

Description : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange takes place in meiosis.

Last Answer : Assertion : Meiosis produces four genetically dissimilar cells. Reason : Crossing over or gene exchange ... . If both Assertion & Reason are false.

The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these

Description : The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these

Last Answer : D

Name the switching schemes used in a digital exchange. How call processing takes place?

Description : Name the switching schemes used in a digital exchange. How call processing takes place?

Last Answer : The different switching systems used are: 1. Strowger Switching System 2. Cross bar Switching. 3. Electronic Switching System Basic Call Procedure: Fig. Shows a simplification ... machine detects an open circuit on that loop and then drops the connections through the switch.  

Closing rate is the exchange rate at the close of the date on which a transaction takes place

Description : Closing rate is the exchange rate at the close of the date on which a transaction takes place

Last Answer : FALSE

Which of the following takes place at retailer’s end? A Promotion B. Placing C. Pricing D. Exchange

Description : Which of the following takes place at retailer’s end? A Promotion B. Placing C. Pricing D. Exchange

Last Answer : D. Exchange

_______ takes place when at least one party to a potential exchange thinks about the means of achieving desired responses from other parties. A. Marketing management B. Forecasting C. Segmentation D. Targeting E. Distribution

Description : _______ takes place when at least one party to a potential exchange thinks about the means of achieving desired responses from other parties. A. Marketing management B. Forecasting C. Segmentation D. Targeting E. Distribution

Last Answer : A. Marketing management

The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these

Description : The exchange of material takes place (A) Only by diffusion (B) Only by active transport (C) Only by pinocytosis (D) All of these

Last Answer : (D) All of these

The phlegm that accumulates in the bronchi and cleared during coughing is (a) stratified squamous epithelium (b) stratified columnar epithelium (c) simple columnar ciliated epithelium (d) pseudostratified columnar ciliated epithelium

Description : The phlegm that accumulates in the bronchi and cleared during coughing is (a) stratified squamous epithelium (b) stratified columnar epithelium (c) simple columnar ciliated epithelium (d) pseudostratified columnar ciliated epithelium

Last Answer : Ans:(a)

Explain subdivisions of bronchi. -Biology

Description : Explain subdivisions of bronchi. -Biology

Last Answer : answer:

Origin of right and left primary bronchi occurs at the level of______

Description : Origin of right and left primary bronchi occurs at the level of______

Last Answer : Origin of right and left primary bronchi occurs at the level of______

Origin of right and left primary bronchi occurs at the level of______

Description : Origin of right and left primary bronchi occurs at the level of______

Last Answer : Origin of right and left primary bronchi occurs at the level of______

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Description : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Last Answer : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles ... epithelium C. Cilated epithelium D. Cubical epithelilum

What is the similarity between bronchi and fallopian tube ?

Description : What is the similarity between bronchi and fallopian tube ?

Last Answer : What is the similarity between bronchi and fallopian tube ? A. Pseudostratified epithelium B. ... C. Cuboidal epithelium D. Columnar epithelium

The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Description : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small bronchi are known as

Last Answer : The type of epithelial cells which line the inner surface of Fallopian tubes, bronchioles and small ... Squamous B. Cuboidal C. Glandular D. Ciliated

How many bronchi are in each lung?

Description : How many bronchi are in each lung?

Last Answer : There are 10 bronchi in each lung.

What happens when something gets in your or bronchi and irritates you?

Description : What happens when something gets in your or bronchi and irritates you?

Last Answer : Feel Free to Answer

Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Description : Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals

Last Answer : Ans: B

The smooth muscle stimulating action of 5-HT is most marked in the (a) Bronchi (b) Intestines (c) Ureter (d) Billary tract

Description : The smooth muscle stimulating action of 5-HT is most marked in the (a) Bronchi (b) Intestines (c) Ureter (d) Billary tract

Last Answer : Ans: B