Question

→ Answer in 30 to 50 words { 3 Marks}

1. Arrange the following in correct sequence :
glomerulus, renal vein ,efferent arteriole, renal artery , afferent arterioles , secondary capillaries .

2. Name two proteases in pancreatic juice . What are their specific roles ?

3. Name two animals having cutaneous respiration. what special features of the skin make cutaneous respiration effective ?

4. Differentiate between left lung and right lung of humans on the basis of positions , divisions hand arteries and veins connected to them.

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Answer 1

Answer:

Explanation:

1. Renal artery, afferent arteriole, glomerulus, efferent arteriole, secondary capillaries, renal vein

⮕ The blood containing water and solutes enters into the afferent arteriole and then the glomerulus through the renal artery.

⮕ The glomerulus is the capillary tuft present in the Bowman's capsule which are formed by afferent arterioles which breaks up into these fine tubes.

⮕ The capillaries then reunite and comes out of the glomerulus to form the efferent arteriole.

⮕ The efferent arteriole divides again to form the secondary capillaries called as the peritubular capillary network and then joins to the renal vein.

2. The two proteases produced by pancreatic juice are trypsin and chymotrypsin which are endopeptidases.

⮕ The inactive proenzyme trypsinogen is activated with the help of enterokinase to form trypsin. It converts substrates like proteins, peptones, proteoses and large peptides to small peptides.

⮕ The proenzyme chymotrpsinogen is activated by trypsin to form chymotrypsin which converts proteins and large peptides to smaller molecules of peptides.

3. Annelids (earthworms) and amphibians (frogs)

⮕ These animals have their skin as the major respiratory organ and this type of respiration is called as cutaneous respiration.

⮕ Moist nature and extensive folds present in the skin of these animals make cutaneous respiration effective.

4.

⮕ The lungs are located in the thoracic cavity of the human body.

⮕ The right lung is larger and shorter than the left by about 2.5 cm due to the raised position of the diaphragm to accommodate the heart.

⮕ The left lung is smaller and narrower and contains the cardiac notch.

⮕ The right lung is divided into three lobes which are right superior, right middle and right inferior.

⮕ The left lung is divided into two lobes namely the left superior and left inferior.

⮕ Two pulmonary veins are connected to each of the lungs that carry oxygenated blood.

⮕ The left and right pulmonary artery deliver deoxygenated blood to the respective lungs.

Answer 2

Continue to @ The Valkyrie

$\looparrowright$ The renal artery supplies blood to the glomerulus via afferent arteriole. ... So, the correct sequence is "Renal artery, Afferent arteriole, Glomerulus, Efferent arteriole, Renal vein".

$\looparrowright$ The two proteases in pancreatic juice are :

$\mapsto$ Trypsin - It helps in the digestion of proteins.

$\mapsto$ Chymotrypsin - it helps in the breakdown of proteins into smaller molecules.

$\looparrowright$ The two animals having cutaneous respiration are

$\mapsto$ Frogs, snakes have cutaneous respiration. Following are the special features of the skin that make cutaneous respiration effective

$\mapsto$ Moist and delicate nature of the skin makes the cutaneous respiration effective

$\looparrowright$ The lung are divided into right lung and left lung. The right lung is wide and short whereas the left lung is narrow and long.

i ) Right lung

$\mapsto$ The located on the Respiratory system

$\mapsto$ The structure is wider and shorter

$\mapsto$ The lobe is three

$\mapsto$ The base side is concave

$\mapsto$ There are Two bronchi

$\mapsto$ it's weight is heavy

$\mapsto$ The provide space are liver

$\mapsto$ fissure are one horizontal and oblique

$\mapsto$ There are 700 weight in grams

ii ) left lung

$\mapsto$ it's is located on the left side of the respiratory system

$\mapsto$ The structure narrow and long

$\mapsto$ There is two lobe

$\mapsto$ The base shape is less concave than the right lung

$\mapsto$ The bronchus are single

$\mapsto$ The weight is light

$\mapsto$ The provide space are heart

$\mapsto$ There are one fissures

$\mapsto$ There are one types of fissures

$\mapsto$ The weight is 650 grams