tag:blogger.com,1999:blog-55537154022415208922024-03-14T02:39:06.885-07:00videos for cbse studentsExcellent free educational videos and animations for cbse class-x students on topics like photosynthesis,stomata,respiration,etc. CBSE video lessons to learn things without any strain. Sure the students will enjoy studying by this method. Important cbse sample papers, cbse guess papers with answers.2010Unknownnoreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5553715402241520892.post-26297935275303532922009-12-17T06:45:00.000-08:002009-12-17T08:09:13.312-08:00Real video showing binary fission in Euglena<div class="separator" style="clear: both; text-align: center;"><br />
</div>video showing binary fission in euglena. useful for cbse class-x biology students. the animal moved away from the focus before complete separation.<br />
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In this real video, the yeast do reproductoin by budding. cbse class-x biology subject.<br />
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<object height="364" width="445"><param name="movie" value="http://www.youtube.com/v/CWhbhB4mUzA&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/CWhbhB4mUzA&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="445" height="364"></embed></object><br />
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Some important questions for cbse class-x biology:<br />
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1. whatis binary fission?<br />
2. what is gootee?<br />
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3. in which one redproduction parental identity is maintained?<br />
4. binary fission occurs in amoeba. true?<br />
5. budding occurs in yeast. true?<br />
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6. meiosis taken plce in asexual reproduction. true?<br />
7. differentiate mitotic and amitotic<br />
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ans1. it is type of asexual reproduction in which one indiviudal divides into two.<br />
eg. amoeba,euglena,paramoecium are asexual anmals. <br />
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ans2. gootee: in branch of plant, a ring of bark is removed, the the portion above the ring swell and produces shoots. this shoot is called as goote.<br />
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ans 4. true. ans. 5 true. 6. false.<br />
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ans.7. if the nucleus is SPLIT into two, it is amitotic (amoeba) if the nuceus creates another copy of nucleus it is mitotic (yeast)Unknownnoreply@blogger.comtag:blogger.com,1999:blog-5553715402241520892.post-51484527127078768292009-12-16T19:06:00.000-08:002009-12-17T00:17:29.403-08:00aerobic respiration experiment video for cbse class-x studentsThis video experiment shows how respiration takes plce in germinated seeds.Useful for cbse class-x students. This is chapter 3 of laboratory manual science (2009).<br />
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<object height="364" width="445"><param name="movie" value="http://www.youtube.com/v/tUKcaSvGRdM&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/tUKcaSvGRdM&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="445" height="364"></embed></object><br />
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Important questions on cbse class -x r biology espiration<br />
1. what is respiraton<br />
2. which cell organelle is concrned with aerobic respiraton and which one is related to anaerobic respiration<br />
3. Which chemcial is used to absorb CO2<br />
4. what is fermentation??<br />
5. what is ATP nnd ADP<br />
6. respiration is anabolic. true or false?<br />
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Asn1 It is a biochemical process in which food is oxidised to release energy.<br />
ans 2. mitochondria for aerobic and cytoplasm for anerobic<br />
ans3. KOH<br />
ans. 4 incomlete anaerobic ans 5. ATP=adenosine triphosphate. it is the energy currency of the cell.<br />
ADP =adenosine diphosphate<br />
ans 5. no, respiration is ctabolic, photosynthesis is anabolic. catabolic means breaking of big molecules into smaller ones. but anabolic is joining of smaller molecules and making a bigger molecules.Unknownnoreply@blogger.comtag:blogger.com,1999:blog-5553715402241520892.post-83579386223629827632009-12-16T18:23:00.000-08:002009-12-16T18:26:05.220-08:00Stomata and temporry mount preparation - video<object height="364" width="445"><param name="movie" value="http://www.youtube.com/v/cFX4JrsPaUs&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/cFX4JrsPaUs&hl=en_US&fs=1&rel=0&color1=0x006699&color2=0x54abd6&border=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="445" height="364"></embed></object><br />
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Try to answer the following questions:<br />
1. Name the cells which surround the stoma<br />
2. what is traspiration?<br />
3. What is porometer?<br />
4. what is potometer?<br />
5. what is the type of stomata in xerophytes?<br />
6. which plant opens the stomata during night?<br />
7. what is stomata?<br />
8. which inorganic ions helps in opening and closing stoma?<br />
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Ans.1 guard cells<br />
Ans 2. loss of water from ther sruface of plants<br />
ans 3. instrumetn used to measure the size of stomata<br />
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ans.4 instrumetn used to measure transpiration<br />
ans5. sunken stomata<br />
ans 6. opuntia - a xerophytic plant<br />
ans 7. minute pores in the leaves surrounded by guard cells.a<br />
ans8. K+Unknownnoreply@blogger.comtag:blogger.com,1999:blog-5553715402241520892.post-73364955442914162592009-12-16T07:05:00.000-08:002009-12-17T03:41:57.268-08:00Video showing light is necessary for photosynthesis-CBSE-X-BIOLOGY<div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;"><div class="separator" style="clear: both; text-align: center;"><br />
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</div>This video shows the experiment that Light is necesssary for photosynthesis. <br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">Requirements for this experient: ganong's light screen, a potted pant, ethnol,iodine solution.<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">Principle: Photosynthesis is a biochemical process by which plants make their food (called as glucose or sucroser) using CO2 and H2O in the present of sunlight and chlorophyll.<br />
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</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">6CO2 + 12H2O >>>>>>>>C6H12O6 + 6H2) + 6O2<br />
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</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">What is the differenece between chlorophyll and chloroplast? Green leaves contain chloroplast. Chrlorplast contas Chlorophyll. Chrlorophyll is used to convert solar energy to chemical energy. <br />
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</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none; text-align: center;"><strong><a href="http://www.tutorvista.com/content/biology/biology-ii/transportation/ganongs-screen-method.php" target="_blank">CLICK HERE TO VIEW THE ANIMATION</a></strong><br />
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<div class="separator" style="clear: both; text-align: center;"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRGLmhtUB3M8hdN-Bt3qD-XXSgM0DjSSM5G5P2nPrp41UWcIi43YIi0cOBzzNGot_Ucl8zhQDtlVp3vyVXRwmzXXaXR15QozRnrqYf7TWhlQTbSQDAKEYsigKnlctx2HdDh1DfIOOehto/s320/cbse-photosynthesis.jpg" /><br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">After seeing the video animation, you should be able to answer the follwing quesations:<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">1. What you conclude by this experiment?<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">2. What is photosynthesis?<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">3. In what form does the movement of food occur in plants?<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">4. Oxygen is coming from CO2 or Water or Both?<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">5. Which material is used to identify the presence of starch in the leaf?<br />
</div>6. Boiling is for removing the starch or chlorophyll or stach?<br />
<div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">7. In vibgyor, which color is used for photosynthesis?<br />
</div><div style="border-bottom: medium none; border-left: medium none; border-right: medium none; border-top: medium none;">8. In the dark reacton, CO2 is absorbed and O2 is released in the Light reacation. True?<br />
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ans 1: light is must for photosynthesis.<br />
ans.2: It is the formation of food from CO2and H2O in the presence of chlrophyll and light.<br />
ans 3. sucrose.<br />
ans 4. water<br />
ans.5 : iodine.<br />
ans 6. chlorophyll<br />
ans 7. blue and red<br />
as 8. yes.Unknownnoreply@blogger.com