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leviathan; we stay as one; never fall apart. <3 navigations are the fours lines of words;. they are profile, entries, tagboard and links navigations respectively :D. |
Monday, May 05, 2008, 11:16 AM
1. C 2. A 3. A 4.D 5.A 6.D 7.B 8.C 9.C 10.B 11.C 12.C 13.B 14.A 15.A 16.D 17.A 18.D 19.C 20.A sectionB 1a(i). Cell A has a flat and biconcave shape which increases the surface area to volume ratio for efficient absorption of oxygen. It has red pigment haemonglobin which can absorb oxygen. It has no nucleus hence can contain more haemoglobin. (ii) Cell B foms a long and narrow extension, which inceases the surface area to volume ratio of the cell for efficient absorption of nutrients from soil solution. 1b. Both of them have large surface area to volume ratio. 1c. White blood cells. 2a. To focus the specimen at lower power magnification. 2b. Magnification of objective lens = 800/10 = x80 2c. idk how to draw a cell on blogger. o.o. labels. ( nucleus cytoplasm cellmember cellulosecellwall centralvacuole ) need title too. 3a. L - nucleus M - cellulose cell wall N - cytoplasm O - central vacuole 3b. The liquid is of lower solute concentration than the cell sap. 3c(i). Plasmolysis (ii). The cell has been placed in a (hypertonic) solution of lower water potential than its cellsap. Water molecules moves out of the vacuole of cell by osmosis. Vacuole decreases in size, and cytoplasm shrinks away from the cell wall. Cell dreases in size and becomes flaccid. 4a (i) poriferan (ii) annelid (iii) crustacean (iv) cnidarian 4b. Water boatman has segmented body covered by a hard dry exoskeleton, compound eyes and 3 pairs of legs. 5a. Rice : carbogydrates, mouth, glucose. chicken breast meat: proteins, stomach, amino acids. 5b. Digestion is the breakdown of large complex insoluble molecules into small, simple soluble diffusible molecules. 5c.(i) Bile (ii) Bile breaks up large fat globules into smaller fat droplets, hence increasing surface area for chemical action by lipase. ( emulsification ) SectionC. 1a(i) A dichotomous key is a tool which classifies and identifies objects by dividing them into TWO smaller groups at each stage. (ii) ANYTWOO. 1. To make the study of science systemetic. 2. To organise organisms for easy study reference/ identification. 3. To compare similarities and differences hence show possible relationships between organisms. 4. To trace possible origins of organisms. 5. To communicate effectively about organisms. (b). LeafA. Lobed/ has 3 main lobes. Wavy edge or margin. Plam-shaped or plamate leaf blade. 4 sets if veins branching out. LeafB. Compound leaf(the rest - simple leaves) Smooth/ entire edge. Sharp leaf tip. LeafC. Toothed / jagged / sharp / serrated edge. Heart-shaped leaf blade. Finely branched veins. LeafD. Wavy edge. Fish-tail shaped leaf blade. Finely branched veins. Blunt leaf tip. LeafE. Smooth/ entire edge. Sharp leaf tip. Oblong leaf blade. Leafs Smooth margin Non-smooth margin simple compound no lobes 3 lobes LeafE LeafB LeafC LeafD LeafA didnt drew the arrow x= 2a. CARBOHYDRATES As a source of energy(16kJ/g of carbohydrate), e.g. srarch as energy reserves form supporting structures (e.g. cellulose of plant cell walls) convert to other useful compounds, (e.g.g amino acids and fats) PROTEINS Form new protoplasm for growth and repair of worn-out cells. Form enzymes and antibodies. As a source of energy (17kJ/g of proteins) FATS. As a source of energy(38kJ/g fat or oil) Form cell membrans. As an insulating material, especially beneath the skin, to prevent excessive heat loss. b. Starch is broken down by amylase from salivary glands/ pancreas to maltose. Maltose is in turn broken down by maltase to glucose. Maltase is secreted from the walls of the small intestines. The gluclose will then be absorbed in the small intestines via diffusion. ohwell. my fingers are tired-.- -chuakahleong ; :l |
theleviathan<3ist
we;#01; isa, band }trumpet #02; mingfang, chinese orchestra }erhu #03; esther, saint john ambulance brigade #04; gina, choir #05; shuying, national cadet corps #06; wanxuan, string ensemble }viola #07; xiumei, eldds #08; joanne, volleyball #09; kathleen, band }flute #10; wenxin, chinese orchestra }erhu #11; chingyee, chinese orchestra }gaohu #12; rina, badminton #13; xueli, saint john ambulance brigade #14; meixin, mindsports }weiqi #15; liuhan, chinese orchestra }erhu #16; jiaying, chinese orchestra }liuqin #17; marion, eldds #18; shijing, saint john ambulance brigade #19; woonmin, chinese orchestra }suona #20; lianchoo, mindsports }scrabble #21; vivan, eldds #22; hueimin, girlguides #23; alvin, volleyball #24; marvin, infocomm }robotics #25; kahleong, chinese orchestra }doublebass #26; nicholas, tabletennis #27; kheeshuen, scouts #28; bingda, national cadet corps #29; mingsheng, infocomm }robotics #30; kelvin, saint john ambulance brigade #31; yugao, chinese orchestra }suona #32; jozhi, cldds #33; jialiang, national cadet corps teachers; formteacher; misszeng english; mrswoon math; misszeng chinese; mdmtia science; mrslim history; mrchia geography; misstan malay; cikgu pe; mrtan music; mrhung computer; misswong important dates; JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER sept 18, wenxin's birthday sept 30, kheeshuen's birthday OCTOBER NOVEMBER 2 nov, jozhi's birthday 8 nov, woonmin's birthday 20 nov, kelvin's birthday DECEMBER 2 dec, xueli's birthday 3 dec, jialiang's birthday 25 dec, kathleen's birthday |
partnersincrime
leviathan; erika #03; esther #04; gina #08; joanne #09; kathleen #11; chingyee #13; xueli #15; liuhan #16; jiaying #17; marion #18; shijing #19; woonmin #20; lianchoo #21; vivan #22; hueimin #23; alvin #25; kahleong #27; kheeshuen #28; bingda rvhs; 2A-o9 2B-o9 2C-o9 2D-o9 2E-o9 2F-o9 2G-o9 2H-o9 2J-o9 2K-o9 backtoyesterday
+ GOOD LUCK FOR MID-YEARS 1L !!AND HAPPY B'DAY TO MA... + YOYOYO! + YOYO! + Fun. Ain't it? + YO GUYS! + Sorry... + hais people .we're a class .can youre not insult p... + i really LOVE all of ur....1LEVIATHAN ROCKS 4EVA..... + this is gina here + someone pls change the blogskinthe current is too ... wheni'mgone
+ March 2008 + April 2008 + May 2008 + June 2008 + July 2008 + August 2008 + September 2008 + October 2008 + November 2008 + December 2008 + January 2009 + February 2009 + March 2009 + April 2009 + May 2009 + July 2009 + August 2009 + September 2009 + October 2009 + November 2009 + January 2010 + February 2010 + March 2010 takeabow
A accidentality productions Inspiration from DancingSheep & BONBON:D |
theventingmachine
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