Bio:Excretion

BIO:EXCRETION

A•Ans. in one sent. : (1 mark) 
1• In which disease glucose is present as an abnormal constituents of urine? Diabetes Mellitus
1a• What are the excretory products from plants? 
1b• What are the abnormal constituents of urine?
2• Where is Nicotine found? Tobacco leaves
3•From which plant is reserpine obtained? Rauwolfia Serpentine
4• Which of the Alkaloids is Obtained from Cinchona Plant? Quinine
5• Which Alkaloid is obtained from Rauwolfia Plant ? Reserpine
6• Which of the Alkaloids is used to reduce high blood pressure?
7• With which system is Nephron associated ? Excretory System
8• In which organ is glomerulus found ? Kidney
9• What amount of blood is circulated by two kidneys of human body per minute ?
10• Mention the average weight of each kidney of an adult male.
11• Name the 'U' shaped renal tubule. Henle's Loop
12• Name the main excretory substance of a human being.
OR• Which nitrogenous excretory product is present in urine of human in maximum quantity ? (MP11)
13• Write the name of a resin producing plant.(MP10)
14• In which organ is glomerulus present in animals ? (MP09)
15• What is the name of the part of nephron which surrounds the glomerulus? (MP08) Bowman's Capsule
16• Name the structural and functional unit of human kidney.(MP07) Nephron
OR•What is the name of structural and functional unit of kidney ? (MP03) Nephron
17• Where does the urea synthesize in human body ? Liver
18• Name an alkaloid that is used in treatment of eye disease. Pilocarpine
19• Which type of excretory product is found in phanimanasa plant (opuntia sp.) [MP12]
20• In which part of nephron reabsorption takes place? [MP12)
Distal Convoluted Tubule
B•Fill in blanks : ( I mark)
1• .... alkaloid is used to reduce blood pressure of man.
2•In human body the urea is synthesized in ...... ? Liver
3•The main excretory organ of man is ..... Kidney
4•Glucose is the ..... primary constituent of human urine.
5•The U shaped structure of renal tubule is called ......... Henle's Loop
6. The main parts of nephron are   .........and......... (Malphigian Corpuscle, Renal Tubule)
7. Nicotine is obtained from  ...... plant. tobacco
8. ...... alkaloid is obtained from the root of Rauwolfia Plant. Reserpine
9•....... alkaloid is obtained from the seed of coffee. Caffeine
10•......... alkaloid is obtained from tea leaf. Thin
11•Quinine is used to prevent ......malarial fever
12•Morphine is obtained from .....
13•Commercial rubber is obtained from .....latex
14•Urine is temporarily stored in .......gall bladder
15•The pigment present in urine is ....... eurochrome
16•The structural and functional unit of kidney is .......nephron
17•Malpighian tubule is the excretory organ of ....
18•The main excretory substance of human body is .....
19•The approximate number of nephron in each kidney is ....
20•Latex is obtained from .....laticiferous tissues
21•The taste "alkaloid" is .....
22•Glucose is present as abnormal constituents of urine in the disease........diabetes mellitus
23•Malic acid is the excretory substance of ........
24•The shape of human kidney is ........ bean
25•The non-nitrogenous excretory' substance of human body is ........
26•Chemically alkaloid is ........nitrogeneous
27•The alkaloid found in Atropa belladonna is ........atropine
28•The main excretory organ of human being ........
29• The excretory organ of earthworm is ........
30•In human body urea is produced in ........
C•Answer questions : (2marks)
1•What is excretion?
2•Why is excretion called metabolic process?
3•Definite excretory organ is absent in plant — Why?
4•What is meant by excretory substance?
5•Why is faecal matter not considered as excretory substance?
6•State the differences between excretory substance and faecal matter.
7•What is latex?In which plant is it found? (MP08)
8•Mention the source and imponance of resin.
9•State the economic importance of gum.
10•Mention two uses of latex.
11•Name two nitrogenous and two non-nitrogenous excretory substances of plant.
12•Which diseases are cured by applying quinine and reserpine?
13•Mention the location of human kidney.
14•What is pelvis?
15•Mention two functions of kidney.
16•State the relationship between nephron and kidney.
17•Define nephron.
18•What is meant by Maipighian Corpuscle?
19•What is meant by ultrafiltration of blood?
20•Sate the function of malpighian corpuscle.
21•What is the function of proximal convoluted tubule? .
22•Write the function of Henle's loop.
23•Write the function of distal convoluted tubule.
24•What js urine?
25•Name two normal constituents of urine.
26•Name two abnormal constituents o f urine.
27•Why is liver called accessory excretory organ of human being?
28•Why are lungs called accessory excretory organ of human being?
29•Write the differences between excretion and secretion.
30•What is alkaloid? Cite an example.
31•Mention the name and sources of two economically important excretory products of plants.
32•What is the use of bark of cinchona plant?
33•Name an alkaloid that is used in treatment of eye disease.
34•In which part of nephron, does maximum reabsorption occur?
35•What is the role of skin in human excretion? (MP07)
36•Briefly explain two methods of removal of plant excretory products with one example of each.
37•Name the major excretory products of lung and liver.
38•Write two differences between plant and animal excretion. (MP11)
39•Mention two roles of liver in excretion.(MP12)
D•Answer questions : (3 marks)
1•Plant excretory substances are less toxic than animal excretory substances.Why?
2•State the differences between plant excretion and animal excretion.
3•Mention the importance Of excretion.
4•What is latex? Mention its importance.
OR•What is latex? Give an example of a plant where latex is found. Mention one use of resin.
5•What is gum? Mention its source and importance.
6•What is resin? Mention its types.
7•Mention the source and economic importance of resin.
8•Name the major parts of nephron. State the functions of nephron.
9•State the functions of kidney.
10•What is malpighian corpuscle? Mention its function.
11•Write the functions of renal tubule.
12•What is urine? Mention its normal constituents.
13•How is urine formed? State the role of ADH in urine production.
15•Why is skin called accessory excretory organs?
16•What is alkaloid? Mention the source and importance of two alkaloids.
17•Mention the source and importance of morphine and nicotine.
18•Name three abnormal constituents of urine.
19•Write about the internal structure of kidney.
20•Write a short note on the structure of malpighian corpuscle.
21•State the characteristics of plant excretory substances.
22•Mention the characteristic features of animal excretory substances.
23•How are the nitrogenous waste materials excreted through kidney in human body? (MP10)
24•Write three excretory processes in plants. (MP09,12)
25•What is the role of liver and lungs in human excretion? (MP08)
26•Write any three differences between excretion in plants and animals.(MP07)
OR•Write any three differences between plant and animal excretion.
27•Mention the steps of urine formation in nephron.
28•Describe briefly two processes of excretion in plant with one example of each. (MP11)
E•Answer questions : (5marks)
1•Define excretion. Mention its importance.
2•How does excretion take place in plants though they have no definite excretory organs?Mention two excretory substances of plan.
3•What is Latex? Mention the source and economic importance Of latex gum.
4•What is alkaloid? Name three alkaloids along with their source and economic Importances.
5•State the relation between kidney and nephron. Describe the internal structure of kidney.
6•What is nephron? Mention its different parts.What is ultra-filtration?
7•Describe the structure of nephron.
8•Describe the structure of renal tubule. State the functions of proximal convoluted tubule.
9•What is urine? How is urine formed?
10•Name the normal and abnormal constituents of urine. How much urine is excreted in each day?
11•Name two accessory excretory organs of human being. Why is CO2 called excretory substance of human body? Name the main excretory substance Of human body.
12•State the role of skin in human excretory process.Why is faecal considered as excretory products?
13•How do plants remove their excretory substances inspite of the absence of definite excretory organs? Name an excretory Organ in human being other than kidney. In which organ is glomerulus present in animals?
14•Explain two processes by which plants remove their excretory substances with examples. What is latex? Name a plant where it is found. Mention the uses of resin.
15•What is nephron? Briefly explain the method of excretion of nitrogenous wastes through kidney after reabsorption of essential substances.Mention the role of lungs in excretion.
16•What is excretory substance? Where is urea formed in urine?Write the role of lungs and skin in human excretion.(MP10)
17•What is nephron? Write in brief how nitrogenous excretory products are eliminated through the kidney in man. (MP08)
18•Mention the role Of skin, Lungs and kidney in excretion in animals. Name the hormones that is responsible for the absorption of water in renal tubule. Write the name of the part that connects proximal and distal convoluted tubule of nephron.(MP12)
F•Attempt questions:(8 marks)
1•Draw the longitudinal section of kidney and label any six parts.
2•Draw a diagram of nephron and label any six parts.
3•Draw a neat diagram of the structural unit of kidney and label the following parts : Glomerulus, Bowman's Capsule, Proximal Convoluted tubule, Digital Convoluted tubule.
4•Draw a neat diagram of a nephron and label the following parts : Bowman's Capsule, Glomeruius, Proximal Convoluted tubule, Distal Convoluted tubule, Henle's loop and collecting tubule. (MP09)
5•Draw a neat and scientific diagram of a nephron and label the following parts : Afferent arteriole, Glomerulus. Bowman's Capsule, Proximal Convoluted tubule, Henle's loop and Distal convoluted tubule. (MP11)