Monday, 20 April 2009

A few days ago I took a biology quiz.. and this is the result..
  1. Alfonso eats a blueberry bagel for breakfast. Which of the following correctly traces the energy he received back to the sun?

    • heterotroph -> heterotroph -> SUN
    • human -> heteroroph -> SUN
    • heterotroph -> autotroph -> wheat -> SUN
    • heterotroph -> autotroph-> SUN (correct answer, your response)

    Points earned: 1 out of 1 
 
  1. An analogy: organ is to human as ________ is to bacteria.

    • Nucleus
    • Deoxyribonucleic Acid
    • Organelle (correct answer, your response)
    • subatomic particles
    • atoms

    Points earned: 1 out of 1 
 
  1. Ionic bonds are formed by two molecules that

    • Have opposite net charges (correct answer, your response)
    • Share one or more electrons
    • contain the element Ion

    Points earned: 1 out of 1 
 
  1. A happy little tree living in a Bob Ross painting. As the sun sets behind the mountains, which of the following process changes will occur in the tree's happy little cells?

    • The light-dependent reaction will cease, and the light independent reaction will continue. (correct answer, your response)
    • The light-dependent reaction will start, and the light-independent reaction will cease.
    • The light-dependent reaction will cease, and the light-independent reaction will start.
    • The chlorophyll retreats back into the stem, the leaves change color, and fall.
    • That is an amazing painting if the sun can move.

    Points earned: 1 out of 1 
 
  1. Jupiter's moon Europa is one of our solar system;s possibilities for extraterrestrial life. Water may exist to sustain life, but under miles of ice, and the moon is 5 times the distance from the sun as the Earth. If there is life, what method have we discussed that it may use to obtain energy?

    • photosynthesis
    • aerobic respiration
    • carbohydrate conflagration
    • chemoautotropism (correct answer, your response)









    1. A chromosome is made up of _____ and forms only _____.

      • protein, in sperm cells
      • protein, in photosynthetic cells
      • DNA, in the cytoplasm
      • DNA and protein, during cell division (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Which of the following are nonliving?

      • Organelle
      • element
      • chlorophyll
      • oligosaccharide
      • all of these (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Which of the following is more liquid than solid at room temperature?

      • waxes
      • unsaturated fat (correct answer, your response)
      • saturated fat
      • triglyceride

      Points earned: 1 out of 1 
     
    1. Why?

      • Hydrogens have been stripped from the molecule
      • Hydrogens are attached at each possible location
      • Carbon-carbon double bonds prevent hydrogen from attaching at each location (correct answer, your response)
      • Heat causes the hydrogen bonds to weaken

      Points earned: 1 out of 1 
     
    1. A somatic cell's chromosome count is always

      • 23
      • 23 pairs (correct answer, your response)
      • 46 pairs
      • Answers A and B

      Points earned: 1 out of 1 
     
    1. Why?

      • Somatic cells are used in sexual reproduction
      • Somatic cells are NOT used in sexual reproduction
      • Somatic cells undergo Mitosis and not Meiosis
      • Answers B & C (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Order the process of protein synthesis.

      • transcription, translation
      • DNA, ribosome, mRNA, tRNA, codon, amino acid, protein
      • DNA, mRNA, tRNA, protein
      • A&B
      • A&C (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Match the following DNA base pairs with mRNA base pairs: (DNA-mRNA)

      • G-C A-U T-A C-G (correct answer, your response)
      • C-G U-A T-A C-G
      • G-C U-T T-A C-G
      • C-G T-U A-U G-C
      • NONE are correct

      Points earned: 1 out of 1 
     
    1. Long term storage of energy is best provided by

      • ATP
      • proteins
      • polysaccharides
      • triglycerides (correct answer, your response)
      • monosaccharides

      Points earned: 1 out of 1 
     
    1. Prior to fertilization, the sperm and egg are referred to as ____, and after, they are called a ____.

      • somatic cell, daughter cell
      • germ cells, daughter cell
      • gametes, zygote (correct answer, your response)
      • gametes, alleles
      • germ cells, somatic cells

      Points earned: 1 out of 1 

Tuesday, 24 March 2009


sebuah silinder besar bermasa $M_1$ dengan jari jari $ R$ dililit dengan tali tak bermasa dan ujung tali diikatkan sebuah benda bermasa $ M_o$. silinder besar diletakkan diatas track yang cukup kasar sehingga silinder bergerak tanpa slip.. Pertanyaan :

1. Apakan benda bermassa $ M_o$ akan mencapai titik kesetimabangan ?
2. Jika ya, Berapakah sudut yang dibentuk massa $ M_o $ pada saat itu ?

Monday, 9 March 2009

for homework

SMAK PENABUR GADING SERPONG

Jalan Raya Kelapa Gading Barat

Tangerang, Indonesia 12345

 

February 24th, 2009

 

SAT Indonesia Office

Jalan Blabla No.12345

Jakarta, Indonesia 54321

 

Dear Mr. Lbalba,

 

I am Theo Arianto from SMAK PENABUR Gading Serpong grade 11. I want to study abroad after I have finished my senior high school. I wonder how to apply for it.

 

I have heard about SAT Test, TOEFL test or something like that. What the requirements are for apply to study overseas? Is it late for me now to apply for it? Which are popular universities? I'm interested in physics especially pure physics. Which university that is quite good in physics and what is your advice for me.

 

Would you please give your response to me immediately? You can contact me at theo_arianto@hotmail.com. Thank you for your attention.

Sincerely yours,

 
Theo Arianto

 

Monday, 2 March 2009

from Lim Yung Kuo: 
for improving our english, so the problem will be in english 

N identical balls lie equally spaced in a semicircle on a frictionless horizontal 
table, as shown. The total mass of these balls is M. Another ball of mass m 
approaches the semicircle from the left, with the proper initial conditions so 
that it bounces (elastically) off all N balls and finally leaves the semicircle, 
heading directly to the left. 

(a) In the 
 (so the mass of each ball in the semicircle, goes to zero), find the minimum value of  that allows the incoming ball to come out heading directly to the left. 

(b) In the minimum 
 case found in part (a), show that the ratio of m’s final speed to initial speed equals  



if there are something unclear you can visit 

there're also many cool problems ^^


I'm sorry. 
Douglas Osheroff ( with blue shirt )
Yuan Tseh Lee ( with batik )
Nelson tansu ( with blazer )

Photos and assigment



with Prof. Yuan Tseh Lee ( nobel laureates on
chemistry )
with Prof. Douglas Osheroff ( nobel laureates on 
physics)


Hi, my blog is for assigment from my english teacher in class.

Here are a few of my photos :
those are my photos at second asian science camp ( bali )








with Prof. Nelson Tansu