{"id":1550,"date":"2020-06-28T10:03:33","date_gmt":"2020-06-28T10:03:33","guid":{"rendered":"https:\/\/murreeroad.org\/Biology10\/?p=1550"},"modified":"2020-07-24T08:01:49","modified_gmt":"2020-07-24T08:01:49","slug":"unit-11-homeostasis-short-questions","status":"publish","type":"post","link":"https:\/\/murreeroad.org\/Biology10\/unit-11-homeostasis-short-questions\/","title":{"rendered":"Unit 11 Homeostasis Short Questions"},"content":{"rendered":"

Unit 11 Homeostasis Short Questions<\/strong><\/p>\n

Q.1 What are the major organs involved in homeostasis in human body? State the role of each organ?<\/a><\/span>
\nQ.2 What is Bowman’s capsule?<\/a><\/span>
\nQ.3 Define Homeostasis. OR What is homeostasis. Give an example.<\/a><\/span>
\nQ.4 Define osmoregulation.<\/a><\/span>
\nQ.5 Define thermoregulation.<\/a><\/span>
\nQ.6 Define Excretion.<\/a><\/span>
\nQ.7 Differentiate between transpiration and Guttation.<\/a><\/span>
\nQ.8 What are Hydrophytes?<\/a><\/span>
\nQ.9 What are Xerophytes?<\/a><\/span>
\nQ.10 What are Halophytes?<\/a><\/span>
\nQ.11 What is Hilus?<\/a><\/span>
\nQ.12 What are Renal Pyramids?<\/a><\/span>
\nQ.13 What is Renal pelvis?<\/a><\/span>
\nQ.14 What is renal corpuscle?<\/a><\/span>
\nQ.15 What is Glomerulus?<\/a><\/span>
\nQ.16 Define renal tubule.<\/a><\/span>
\nQ.17 What do you know about proximal convoluted tubule?<\/a><\/span>
\nQ.18 What is Loop of Henle?<\/a><\/span>
\nQ.19 What is distal convoluted tubule?<\/a><\/span>
\nQ.20 What are collecting ducts?<\/a><\/span>
\nQ.21 What is a nephron?<\/a><\/span>
\nQ.22 What is pressure filtration?<\/a><\/span>
\nQ.23 What do you know about selective reabsorption?<\/a><\/span>
\nQ.24 What is the tubular secretion?<\/a><\/span>
\nQ.25 What is lithotripsy.<\/a><\/span>
\nQ.26 Define dialysis.<\/a><\/span>
\nQ.27 What is a dialyzer?<\/a><\/span>
\nQ.28 What is peritoneal dialysis?<\/a><\/span>
\nQ.29 What is Haemodialysis?<\/a><\/span>
\nQ.30 What is glomerulus filtrate?<\/a><\/span>
\nQ.31 What are papillary ducts?<\/a><\/span>
\nQ.32 What are ureters?<\/a><\/span>
\nQ.33 What is urethra?<\/a><\/span>
\nQ.34 What is urinary bladder?<\/a><\/span>
\nQ.35 What is urinary system?<\/a><\/span>
\nQ.36 Why transpiration does not take place at night?<\/a><\/span>
\nQ.37 What do you mean by kidney stone?<\/a><\/span>
\nQ.38 What is guttation? How does it differ from dew?<\/a><\/span> <\/a><\/p>\n

Q<\/b>.<\/b>1 What are the major organs involved in homeostasis in human body? State the role of each organ?<\/strong><\/p>\n

Answer:<\/strong>
\nHuman beings have highly developed organs for homeostasis which are:
\n(i) Lungs<\/strong>
\nLungs remove excess carbon dioxide and keep it in balance.
\n(ii) Skin<\/strong>
\nSkin performs role in maintenance of body temperature and also removes excess water and salts..”
\n(iii) Kidneys<\/strong>
\nKidneys filter excess water, salts, urea, uric acid etc. from the blood and form urine.<\/a><\/p>\n

Q<\/b>.<\/b>2 What is Bowman’s capsule?<\/strong>
\nAnswer:<\/strong>
\nOne end of the renal tubule is blind and attains a cup shaped structure called Bowman’s capsule that encloses glomerulus.<\/a><\/p>\n

Q<\/b>.<\/b>3 Define Homeostasis. OR What is homeostasis. Give an example.<\/strong>
\nAnswer:<\/strong>
\nHomeostasis may be defined as the maintenance of the internal conditions of body in equilibrium, despite changes in the external environment e.g. the core temperature of human body remains at about 37\u00b0C despite fluctuations in the surrounding air temperature.<\/a><\/p>\n

Q<\/b>.<\/b>4 Define osmoregulation<\/strong>.<\/strong> <\/span><\/p>\n

An<\/b>swer:<\/b>\u00a0<\/b><\/p>\n

It <\/span>is <\/span>defined <\/span>as <\/span>the <\/span>maintenance <\/span>of <\/span>the <\/span>amounts <\/span>of <\/span>water <\/span>and <\/span>salts <\/span>in <\/span>body <\/span>fluids <\/span>i<\/span>.<\/span>e<\/span>., <\/span>blood <\/span>and <\/span>tissue <\/span>fluids<\/span>: <\/span><\/a><\/p>\n

Q.5 <\/b>Define <\/b>thermoregulation<\/b>. <\/b><\/p>\n

Answer:<\/b>\u00a0<\/span><\/p>\n

The <\/span>maintenance <\/span>of <\/span>internal <\/span>body <\/span>temperature <\/span>is <\/span>called <\/span>thermo<\/span>regu<\/span>lation <\/span>e<\/span>.<\/span>g<\/span>.<\/span>, <\/span>human <\/span>body <\/span>temperature <\/span>is <\/span>kept <\/span>constant <\/span>at <\/span>37\u00b0C<\/span>. <\/span><\/a><\/p>\n

Q.6 Define Excretion<\/b>. <\/b><\/p>\n

Answer:<\/b>\u00a0<\/span><\/p>\n

The <\/span>process <\/span>by <\/span>which <\/span>metabolic <\/span>wastes <\/span>are <\/span>eliminated <\/span>from <\/span>body <\/span>to <\/span>maintain the <\/span>internal <\/span>conditions <\/span>at <\/span>equilibrium <\/span>is <\/span>called <\/span>excretion <\/span>e<\/span>.<\/span>g<\/span>.<\/span>, <\/span>urea<\/span>, <\/span>salts <\/span>of <\/span>uric <\/span>acid <\/span>and <\/span>water <\/span>are <\/span>eliminated <\/span>out <\/span>of <\/span>body <\/span>through <\/span>excretion<\/span>.<\/span><\/a><\/p>\n

Q.7 Differentiate <\/b>between <\/b>transpiration <\/b>and <\/b>Gutta<\/b>tion<\/b>.<\/b><\/p>\n

Answer<\/b>:\u00a0<\/b><\/p>\n

Transpiratio<\/b>n\u00a0<\/b><\/p>\n

i. It is defined as loss of water from plants surface in the form of vapours.<\/p>\n

ii<\/span>. <\/span>It <\/span>occurs <\/span>through <\/span>stomata<\/span>.<\/span><\/p>\n

Guttation <\/b><\/p>\n

i<\/span>. <\/span>It <\/span>is <\/span>defined <\/span>as <\/span>appearance <\/span>of <\/span>drops <\/span>of\u00a0 <\/span>water <\/span>on <\/span>the <\/span>tips <\/span>or <\/span>edges <\/span>of <\/span>leaves<\/span>. <\/span>\u00a0<\/span><\/p>\n

ii<\/span>. <\/span>It <\/span>occurs <\/span>throug<\/span>h <\/span>special <\/span>pores <\/span>called\u00a0 <\/span>hydathodes <\/span>present <\/span>at <\/span>leaf <\/span>tips <\/span>or <\/span>edges<\/span>.<\/span><\/a><\/p>\n

Q.8 <\/b>What <\/b>ar<\/b>e <\/b>Hydrophyte<\/b>s<\/i><\/b>? <\/i><\/b><\/p>\n

Answer<\/b>:\u00a0<\/b><\/p>\n

Hydrophytes <\/span>are <\/span>the <\/span>plants <\/span>which <\/span>live <\/span>completely or <\/span>partially <\/span>submerged <\/span>in <\/span>fresh <\/span>water <\/span>e<\/span>.<\/span>g<\/span>. <\/span>water <\/span>lilly<\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/i><\/b>.<\/b>9 <\/b>What <\/b>are <\/b>Xerophytes<\/b>? <\/i><\/b><\/p>\n

Answer<\/b>:\u00a0<\/b><\/p>\n

Xerophytes live in dry environment e.g. cacti. <\/span><\/a><\/p>\n

Q<\/i><\/b>.<\/b>1<\/b>0 <\/b>What <\/b>are <\/b>Halophytes<\/b>? <\/b><\/p>\n

Answer<\/b>:\u00a0<\/b><\/p>\n

The <\/span>plants <\/span>living <\/span>in <\/span>sea <\/span>water <\/span>and <\/span>adapted <\/span>to <\/span>salty <\/span>environments <\/span>are <\/span>called <\/span>halophytes <\/span>e<\/span>.<\/span>g<\/span>. <\/span>different <\/span>sea <\/span>grasses<\/span>.<\/span><\/a><\/p>\n

Q<\/b>.<\/b>11 What <\/b>is <\/b>Hilus<\/b>? <\/b><\/p>\n

Answer<\/b>:\u00a0<\/b><\/p>\n

The <\/span>concave <\/span>side <\/span>of <\/span>kidney <\/span>faces <\/span>vertebral <\/span>column<\/span>. <\/span>There <\/span>is <\/span>a <\/span>depression <\/span>called <\/span>hilus<\/span>, <\/span>near <\/span>the <\/span>centre <\/span>of <\/span>the <\/span>concave <\/span>area <\/span>of <\/span>kidney<\/span>. <\/span>This <\/span>is the <\/span>area <\/span>of <\/span>kidney <\/span>through <\/span>which <\/span>ureter <\/span>leaves <\/span>kidney <\/span>and <\/span>other <\/span>structures <\/span>including <\/span>blood <\/span>vessels<\/span>, <\/span>lymphatic <\/span>vessels <\/span>and <\/span>nerves <\/span>enter and <\/span>leave <\/span>kidney<\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/b>.<\/b>1<\/b>2 <\/b>What <\/b>are <\/b>Renal <\/b>Pyramids<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

<\/b>R<\/b>enal <\/span>medull<\/span>a <\/span>con<\/span>sists <\/span>of <\/span>several <\/span>cone<\/span>–<\/span>shaped <\/span>areas <\/span>called <\/span>renal <\/span>pyramids<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>13 <\/b>What <\/b>is <\/b>R<\/b>en<\/b>al <\/b>pel<\/b>vis<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

Renal <\/span>pyramids <\/span>project <\/span>into <\/span>a <\/span>funnel<\/span>–<\/span>shaped <\/span>cavity <\/span>called <\/span>renal <\/span>pelvis <\/span>which <\/span>is <\/span>the <\/span>base <\/span>of <\/span>ureter<\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/b>.14 <\/b>What <\/b>is <\/b>renal <\/b>corpuscle<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

The <\/span>part <\/span>of <\/span>nephron <\/span>which <\/span>is <\/span>not <\/span>tubular <\/span>and <\/span>has <\/span>two <\/span>parts<\/span>: <\/span><\/p>\n

(i) Glomerulus<\/p>\n

(ii) Bowman’s capsule<\/a><\/p>\n

Q<\/b>.<\/b>1<\/b>5 <\/b>What <\/b>i<\/b>s <\/b>Glo<\/b>merulus<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

<\/b>Glomerulus <\/span>is <\/span>a <\/span>network <\/span>of <\/span>capillaries <\/span>and <\/span>is <\/span>enclosed <\/span>by <\/span>a <\/span>cup <\/span>shaped <\/span>structure <\/span>called <\/span>Bowman<\/span>‘<\/span>s <\/span>capscule<\/span>. <\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/b>.<\/b>16 <\/b>Define <\/b>renal <\/b>tubule<\/b>. <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

<\/b>Tubular <\/span>part <\/span>of <\/span>nephron <\/span>which <\/span>starts <\/span>after <\/span>Bowman<\/span>‘<\/span>s <\/span>capsule <\/span>is <\/span>called <\/span>renal <\/span>tubule<\/span>. <\/span>It <\/span>is <\/span>sub <\/span>divided <\/span>into <\/span>following <\/span>parts<\/span>:\u00a0<\/span><\/p>\n

i<\/span>. <\/span>Proximal <\/span>convoluted <\/span>tubule <\/span><\/p>\n

ii<\/span>. <\/span>Loop <\/span>of <\/span>Henle <\/span><\/p>\n

iii<\/span>. <\/span>Distal <\/span>convoluted <\/span>tubule\u00a0<\/span><\/p>\n

iv<\/span>. <\/span>Collecting <\/span>duct <\/span><\/a><\/p>\n

Q<\/b>.<\/b>1<\/b>7 <\/b>Wha<\/b>t <\/b>do <\/b>yo<\/b>u <\/b>k<\/b>now <\/b>about <\/b>pro<\/b>ximal <\/b>convo<\/b>lu<\/b>ted <\/b>t<\/b>ubu<\/b>le<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

F<\/b>irst <\/span>portion <\/span>of <\/span>renal <\/span>tubule <\/span>is <\/span>called <\/span>proximal <\/span>convoluted <\/span>tubule<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>18 <\/b>What <\/b>is <\/b>L<\/b>oop <\/span>of <\/span>Henle<\/span>? <\/span><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

U<\/span>–<\/span>shaped part <\/span>of <\/span>renal <\/span>tubule <\/span>is <\/span>called <\/span>Loop <\/span>of <\/span>Henle<\/span>. <\/span>11<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>19 <\/b>What <\/b>i<\/b>s <\/b>di<\/b>stal <\/b>convol<\/b>uted <\/b>tub<\/b>ule<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

Last <\/span>portion <\/span>of <\/span>renal <\/span>tubule <\/span>is <\/span>called <\/span>distal convoluted <\/span>tubule<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>20 <\/b>What <\/b>are <\/b>collecting <\/b>ducts<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

T<\/span>he <\/span>distal <\/span>convoluted <\/span>tubule <\/span>of <\/span>many <\/span>nephrons <\/span>op<\/span>e<\/span>n <\/span>in <\/span>a <\/span>single <\/span>collecting <\/span>duct<\/span>. <\/span>Many <\/span>collecting <\/span>ducts <\/span>join <\/span>together <\/span>to <\/span>form <\/span>several hundred papillary <\/span>ducts <\/span>which <\/span>drain <\/span>into <\/span>renal <\/span>pelvis<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>21 <\/b>Wha<\/b>t <\/b>i<\/b>s <\/b>a <\/b>nephron<\/b>?<\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

The <\/span>functional <\/span>unit <\/span>of <\/span>the <\/span>kidney <\/span>is <\/span>called <\/span>nephron<\/span>. <\/span>There <\/span>are <\/span>over <\/span>one <\/span>million <\/span>nephrons <\/span>in <\/span>each <\/span>kidney<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>22 <\/b>What <\/b>is <\/b>pressure <\/b>filtration<\/b>?<\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

The <\/span>first <\/span>step <\/span>of <\/span>urine <\/span>formation <\/span>is <\/span>pressure <\/span>filtration<\/span>. <\/span>When <\/span>blood <\/span>enters <\/span>the <\/span>kidney <\/span>via <\/span>the <\/span>renal <\/span>artery <\/span>it <\/span>goes <\/span>to <\/span>many <\/span>arterioles<\/span>, <\/span>and <\/span>then <\/span>to <\/span>the <\/span>glomerulus<\/span>. <\/span>The <\/span>pressure <\/span>of <\/span>blood <\/span>is <\/span>very <\/span>high <\/span>and <\/span>so <\/span>most <\/span>of <\/span>the <\/span>water<\/span>, <\/span>salts<\/span>, <\/span>glucose <\/span>and <\/span>urea <\/span>of <\/span>the <\/span>blood <\/span>is <\/span>forced <\/span>out <\/span>of <\/span>glomerular <\/span>capillaries<\/span>. <\/span><\/a><\/p>\n

Q<\/i><\/b>.<\/i><\/b>23 <\/b>What <\/b>do <\/b>you <\/b>know <\/b>about <\/b>sel<\/b>ecti<\/b>ve <\/b>reabsorption<\/b>? <\/b><\/p>\n

Answer:\u00a0 <\/b><\/p>\n

It <\/span>is <\/span>the <\/span>second <\/span>step <\/span>of <\/span>urine <\/span>formation<\/span>. <\/span>In <\/span>this <\/span>step<\/span>, <\/span>about <\/span>99<\/span>% <\/span>of <\/span>the <\/span>glomerular <\/span>filtrate <\/span>is <\/span>re <\/span>absorbed <\/span>into <\/span>the <\/span>blood <\/span>capillaries <\/span>surrounding <\/span>renal <\/span>tubule<\/span>. <\/span>It <\/span>occurs <\/span>through <\/span>osmosis<\/span>, <\/span>diffusion <\/span>and <\/span>active <\/span>transport\u00a0<\/span><\/a><\/p>\n

Q.24 What is the tubular secretion<\/strong>? <\/b><\/p>\n

Answer:<\/b><\/p>\n

The <\/span>third <\/span>step <\/span>of <\/span>urine <\/span>formation <\/span>is <\/span>called <\/span>tubular <\/span>secretion<\/span>. <\/span>Different <\/span>ions<\/span>, <\/span>creatinine<\/span>, <\/span>urea <\/b>etc<\/b>. <\/b>are <\/span>secreted <\/span>from <\/span>blood <\/span>into <\/span>the <\/span>filtrate <\/span>in <\/span>renal tubule<\/span>. <\/span>This <\/span>is <\/span>done <\/span>to <\/span>maintain <\/span>blood <\/span>at <\/span>a <\/span>normal <\/span>pH <\/span>(<\/span><\/i>7<\/span>.<\/span>35 <\/span>–<\/span>7<\/span>.<\/span>45<\/span>)<\/span>.<\/span><\/a><\/p>\n

Q<\/b>.<\/b>25 <\/b>What <\/b>is <\/b>lithotripsy<\/b>. <\/b><\/p>\n

Answer:<\/b><\/p>\n

It <\/span>is <\/span>the <\/span>method <\/span>to <\/span>remove <\/span>kidney <\/span>stones<\/span>. <\/span>In <\/span>this <\/span>method<\/span>, <\/span>non<\/span>–<\/span>electrical <\/span>shock <\/span>waves <\/span>from <\/span>outside <\/span>are <\/span>bombarded <\/span>on <\/span>the <\/span>stones <\/span>in <\/span>the <\/span>urinary <\/span>system<\/span>. <\/span>Waves <\/span>hit <\/span>the <\/span>dense <\/span>stones <\/span>and <\/span>break <\/span>them<\/span>. <\/span>Stones <\/span>become <\/span>sand <\/span>like <\/span>and are <\/span>passed <\/span>through <\/span>urine<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>26 <\/b>Define <\/b>dialysis<\/b>.<\/b><\/p>\n

Answer:<\/b><\/p>\n

<\/b>Dialysis <\/span>means <\/span>the <\/span>cleaning <\/span>of <\/span>blood <\/span>by <\/span>artificial <\/span>ways <\/span>by <\/span>using <\/span>a dialyzer<\/span>. <\/span>It <\/span>is <\/span>of <\/span>two <\/span>types<\/span>: <\/span>(<\/span>i<\/span>) <\/span>Peritoneal <\/span>Dialysis <\/span>(<\/span>ii<\/span>) <\/span>Haemodialysis <\/span><\/a><\/p>\n

Q<\/b>.<\/b>27 <\/b>Wh<\/b>at <\/b>is <\/b>a <\/b>dialyzer<\/b>?<\/b><\/p>\n

Answer:<\/b><\/p>\n

<\/b>I<\/b>n <\/span>haemodialysis<\/span>, <\/span>patient<\/span>‘<\/span>s <\/span>blood <\/span>is <\/span>pumped <\/span>though <\/span>an <\/span>apparatus <\/span>called <\/span>dialyzer<\/span>. <\/span>It <\/span>contains <\/span>long <\/span>tube<\/span>, <\/span>the <\/span>walls <\/span>of <\/span>which <\/span>act <\/span>as <\/span>semi<\/span>–<\/span>permeable <\/span>membranes<\/span>. <\/span>Blood <\/span>flows <\/span>through <\/span>the <\/span>tubules <\/span>and <\/span>during <\/span>this <\/span>extra <\/span>water <\/span>and <\/span>wastes <\/span>move <\/span>from <\/span>blood <\/span>into <\/span>the <\/span>dialysis <\/span>fluid<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>28 <\/b>What <\/b>is <\/b>perito<\/b>n<\/b>eal <\/b>dialysis<\/b>? <\/b><\/p>\n

Answer:<\/b><\/p>\n

<\/b>I<\/b>n <\/span>this <\/span>type <\/span>of <\/span>dialysis<\/span>, <\/span>the <\/span>dialysis <\/span>fluid <\/span>is <\/span>pumped <\/span>for <\/span>a <\/span>time <\/span>into <\/span>the <\/span>peritoneal <\/span>cavity <\/span>which <\/span>is <\/span>the <\/span>space <\/span>around <\/span>gut<\/span>. <\/span>This <\/span>cavity <\/span>is <\/span>lined <\/span>by <\/span>peritoneum<\/span>. <\/span>Peritoneum <\/span>contains <\/span>blood <\/span>vessels<\/span>. <\/span>When <\/span>dialysis <\/span>fluid <\/span>is <\/span>placed <\/span>in <\/span>peritoneal <\/span>cavi<\/span>ty<\/span>, <\/span>waste <\/span>materials <\/span>from <\/span>peritoneal <\/span>blood <\/span>vessels <\/span>diffuse <\/span>into <\/span>the <\/span>dialysis <\/span>fluid<\/span>, <\/span>which <\/span>is <\/span>then <\/span>drained <\/span>out<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>29 <\/b>Wh<\/b>at <\/b>is <\/b>Haem<\/b>odialysis<\/b>? <\/b><\/p>\n

Answer: <\/b><\/p>\n

In <\/b>haemodi<\/b>alysis<\/span>, <\/span>patient<\/span>‘<\/span>s <\/span>blood <\/span>is <\/span>pumped <\/span>through <\/span>an <\/span>apparatus <\/span>called <\/span>dialyzer<\/span>. <\/span>It <\/span>contains <\/span>long <\/span>tubing <\/span>which <\/span>act <\/span>as <\/span>semipermeable membrane<\/span>. <\/span>Blood <\/span>flows <\/span>through <\/span>the <\/span>tubes <\/span>while <\/span>the <\/span>dialysis <\/span>fluid <\/span>flows <\/span>around <\/span>the <\/span>tubes<\/span>. <\/span>Extra <\/span>water <\/span>and wastes <\/span>move <\/span>from <\/span>blood <\/span>into <\/span>d<\/span>ialysis <\/span>fluid<\/span>. <\/span>The <\/span>cleaned <\/span>blood <\/span>is <\/span>returned <\/span>back <\/span>to <\/span>the <\/span>body<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>30 <\/b>What <\/b>is <\/b>glomerulus <\/b>filtrate<\/b>? <\/i><\/b><\/p>\n

Answer:<\/b><\/p>\n

In <\/span>the <\/span>glomer<\/span>ul<\/span>us <\/span>due <\/span>to <\/span>high <\/span>pressure <\/span>of <\/span>blood <\/span>most of <\/span>the <\/span>water<\/span>, <\/span>salts<\/span>, <\/span>glucose <\/span>and <\/span>urea <\/span>of <\/span>the <\/span>blood <\/span>is <\/span>forced <\/span>out <\/span>of <\/span>glomerular <\/span>capillaries<\/span>. <\/span>This <\/span>material <\/span>passes <\/span>into <\/span>the <\/span>Bowman<\/span>‘<\/span>s <\/span>capsule <\/span>and <\/span>is <\/span>called <\/span>glomerular <\/span>filtrate<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>31 <\/b>What <\/b>are <\/b>papillary <\/b>ducts<\/b>? <\/i><\/b><\/p>\n

Answer:<\/b><\/p>\n

M<\/b>any <\/span>collecting <\/span>ducts <\/span>join <\/span>together <\/span>to <\/span>form <\/span>several <\/span>hundred <\/span>papillary <\/span>ducts <\/span>which <\/span>drain <\/span>into <\/span>renal <\/span>pelvis<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>32 <\/b>What <\/b>are <\/b>ureter<\/b>s<\/i><\/b>? <\/i><\/b><\/p>\n

Answer:<\/b><\/span><\/p>\n

Kidneys <\/span>filter <\/span>blood <\/span>to <\/span>produce <\/span>urine <\/span>and <\/span>the <\/span>ureters <\/span>carry <\/span>urine <\/span>from <\/span>kidneys <\/span>to <\/span>urinary <\/span>bladder<\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/b>.<\/b>33 <\/b>What <\/b>is <\/b>urethra<\/b>? <\/b><\/p>\n

Answer:<\/b><\/p>\n

Urethra <\/span>is <\/span>the <\/span>tube <\/span>that <\/span>carries <\/span>urine <\/span>from <\/span>urinary <\/span>bladder <\/span>to <\/span>the <\/span>outside <\/span>of <\/span>body<\/span>. <\/span><\/a><\/p>\n

Q<\/b>.<\/b>34 <\/b>What <\/b>is <\/b>urinary <\/b>bladder<\/b>? <\/i><\/b><\/p>\n

Answer:<\/b><\/span><\/p>\n

Bladder <\/span>is <\/span>an <\/span>organ <\/span>of <\/span>urinary <\/span>system <\/span>which <\/span>temporarily stores urine until it is released from body.<\/span><\/a><\/p>\n

Q<\/b>.<\/b>35 <\/b>Wh<\/b>a<\/b>t <\/b>is uri<\/b>nary <\/b>system<\/b>? <\/b><\/p>\n

Answer:<\/strong><\/p>\n

Excr<\/b>etory <\/span>system <\/span>of <\/span>human <\/span>is <\/span>also <\/span>called <\/span>the <\/span>urinary <\/span>system<\/span>. <\/span>It <\/span>is <\/span>composed <\/span>of<\/span>: <\/span><\/p>\n

i<\/span>. <\/span>Pair <\/span>of <\/span>ki<\/span>dn<\/span>eys <\/span><\/p>\n

ii<\/span>. <\/span>Pair <\/span>of <\/span>ureters <\/span><\/p>\n

iii<\/span>. <\/span>Urinary <\/span>bladder <\/span>and <\/span>urethra\u00a0<\/span><\/a><\/p>\n

Q<\/b>.<\/b>36 <\/b>Why <\/b>transp<\/b>iration <\/b>d<\/b>oes <\/b>not <\/b>ta<\/b>ke <\/b>place <\/b>at <\/b>n<\/b>igh<\/b>t<\/span>? <\/span><\/p>\n

Answer:<\/b><\/span><\/p>\n

At <\/span>night<\/span>, <\/span>transpiration <\/span>usually <\/span>does <\/span>not <\/span>occur <\/span>because <\/span>most <\/span>plants <\/span>have <\/span>their <\/span>stomata <\/span>closed<\/span>.<\/span><\/a><\/p>\n

Q<\/b>.<\/b>37 <\/b>What <\/b>do <\/b>you <\/b>mean <\/b>by <\/b>kidney <\/b>stone<\/b>?\u00a0<\/b><\/p>\n

Answer:<\/b><\/span><\/p>\n

When <\/span>urine <\/span>becomes <\/span>concentrated<\/span>, <\/span>crystals <\/span>of <\/span>many <\/span>salts <\/span>e<\/span>.<\/span>g<\/span>. <\/span>calcium <\/span>oxalate<\/span>, <\/span>calcium <\/span>and <\/span>ammonium <\/span>phosphate<\/span>, <\/span>uric <\/span>acid <\/span>etc <\/span>are <\/span>formed <\/span>in <\/span>it<\/span>. <\/span>Such <\/span>large <\/span>crystals <\/span>cannot <\/span>pass <\/span>in <\/span>urine <\/span>and <\/span>form <\/span>hard <\/span>deposits <\/span>called <\/span>kidney <\/span>stones<\/span>. <\/span>Most <\/span>stones <\/span>start <\/span>in <\/span>kidneys<\/span>, <\/span>some <\/span>may <\/span>travel <\/span>to <\/span>ureter <\/span>or <\/span>urinary <\/span>bladder<\/span>.\u00a0<\/span><\/a><\/p>\n

Q<\/b>.<\/b>38 <\/b>What <\/b>is <\/b>guttation<\/b>? <\/b>How <\/b>does <\/b>it <\/b>differ <\/b>from <\/b>dew<\/b>?<\/b><\/p>\n

Answer:<\/b><\/span><\/p>\n

Gutta<\/b>tion<\/b><\/p>\n

<\/b>(<\/b>a<\/b>) <\/b>Definition\u00a0<\/b><\/p>\n

The <\/span>appearance <\/span>of <\/span>drops <\/span>of <\/span>water <\/span>on <\/span>the <\/span>tips <\/span>or <\/span>edges <\/span>of <\/span>leaves <\/span>is <\/span>called <\/span>guttation<\/span>. <\/span>Guttation <\/span>is <\/span>not <\/span>to <\/span>be <\/span>confused <\/span>with <\/span>dew<\/span>, <\/span>which <\/span>condenses <\/span>from <\/span>the <\/span>atmosphere <\/span>on <\/span>to <\/span>the <\/span>plant <\/span>surface<\/span>. <\/span><\/p>\n

(<\/b>b<\/b>) <\/b>Explanat<\/b>ion\u00a0<\/b><\/p>\n

Some <\/span>plants <\/span>such <\/span>as <\/span>grasses <\/span>and <\/span>strawberry <\/span>force <\/span>this <\/span>water <\/span>through <\/span>special <\/span>pores<\/span>, <\/span>present at <\/span>leaf <\/span>tips <\/span>or <\/span>edges<\/span>, <\/span>and <\/span>form <\/span>drops<\/span>.<\/span><\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Unit 11 Homeostasis Short Questions Q.1 What are the major organs involved in homeostasis in human body? State the role of each organ? Q.2 What is Bowman’s capsule? Q.3 Define Homeostasis. OR What is homeostasis. Give an example. Q.4 Define osmoregulation. Q.5 Define thermoregulation. Q.6 Define Excretion. Q.7 Differentiate between transpiration and Guttation. Q.8 What… Read More »Unit 11 Homeostasis Short Questions<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[],"_links":{"self":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1550"}],"collection":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/comments?post=1550"}],"version-history":[{"count":14,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1550\/revisions"}],"predecessor-version":[{"id":2218,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/posts\/1550\/revisions\/2218"}],"wp:attachment":[{"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/media?parent=1550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/categories?post=1550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/murreeroad.org\/Biology10\/wp-json\/wp\/v2\/tags?post=1550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}