Bioluminescence

Bioluminescence light appearance varies greatly, depending on habitat and the organism where it is found.

In marine bioluminescence there are 2 types of visible light spectrum namely blue or green, they cannot process yellow, red or purple ... because most are more sensitive to blue and green.

Most terrestrial organisms also show blue-green bioluminescence. However, there are many yellow light spectrum organisms, including fireflies and  Quantula striata soil snail, which originates from the tropics of Southeast Asia.

There are several organisms that can glow in more than one color. Train worms. The worm's head glowed red, while its body glowed green. due to different Lusiferase causes bioluminescence to be expressed differently.

Luciferase is an enzyme. The interaction of oxidized luciferase with luciferin (as a producer of light) (added oxygen) creates a by-product, called oxyluciferin. More importantly, chemical reactions create light. That light is what is meant by bioluminescence.

Some organisms emit light continuously. Some fungal species present in decaying wood, for example, emit fairly consistent light, called foxfire.

However, most organisms use their light organs to blink in less than one second to about 10 seconds. This flicker can appear at certain points, such as a drop in salinity, can force bioluminescent algae to glow, for instance. These living lanterns can be seen as spots of pink or green in the dark ocean.

Adaptation

Bioluminescence is used by living things to hunt prey, defend against predators, find partners, and carry out other vital activities.

Defensive Adaptation

Some luminous species confuse the attackers. Many species of squid, for example, shock predators, such as fish. With surprised fish trapped, the squid tried to escape quickly.

Vampire squid shows this variation in defensive behavior. Vampire squid emit sticky bioluminescent mucus, which can surprise, confuse, and delay predators, allowing squid to escape.

When some animals release parts of the body, they release it in other animals. When threatened, some species of sea cucumbers can break down the luminescent parts of their bodies into nearby fish. Predators will follow the light on fish, while sea cucumbers creep away.

Offensive Adaptation

Bioluminescence can be used to attract prey or prey.

The most famous predator for using bioluminescence is probably anglerfish, which uses bioluminescence to lure prey. Anglerfish have large heads, sharp teeth, and long, thin, fleshy growths (called filaments) at the top of their heads. At the end of the filament there is a ball (called an esca) that can ignite anglerfish. Small fish, curious about the point of light, swim to take a closer look. When the prey sees the large, dark jaw of the anglerfish behind a bright esca, it may be too late.

Recommendation letter for my friend

To National University of Singapore

I wrote a letter on behalf of Marchotridyo, a Bandung high school 3 student who applied for the scholarship you offered. I have known him since August 2017. I am proud to have the opportunity to become his homeroom teacher, now he is in 12th grade.

Marcho is a student who is very diligent, smart, and extraordinarily talented. he can learn various things and understand quickly. he was even able to adapt to the new environment very quickly. especially with things that require a lot of logical intelligence, such as scientific studies. This greatly affected her grades at school, she never dropped out of rank 1 in class, at any school she went. he has extraordinary abilities in solving complex problems that require some logical skills and numeracy skills such as in mathematics, physics, or chemistry. he is also quite good at learning new languages, because he can usually understand the grammar part quite quickly while still having a great memory for storing vocabulary. but take the time to play or something.

Unlike the others ... Marcho has a strong memory ... until he never makes notes or mindmaps which are usually very needed by some of his friends to prepare for the exam. it only takes a short time for Marcho to read and understand the concepts or subjects. and the results are very satisfying. Marcho also really likes chemistry lessons, he used most of his time to study chemistry.

At school, Marcho participates in Classical Trilogy and Music 3. The Trilogy is a group for those who are interested in competing in science. he is a representative of the Chemistry Trilogy group. Meanwhile, Classical Music 3 is an extracurricular activity for those interested in playing classical music. He plays saxophone there.

His skills in singing and playing music also deserves a thumbs up. He can play several musical instruments even though I have just learned about his first musical instrument in 7th grade! That is a recording device. In 9th grade, he could play piano, drums, guitar, saxophone, recorder, and also sing. he had taught himself about this, watched YouTube videos and guessed his notes. So, hearing can have a pretty good musical taste because he can play music with his ears.

I highly recommend Marchotridyo......the advantages can bring many great benefits to the University.

do not hesitate to ask further about Marcho.

just call me at (+62) 88222307937

Best regards,

Muhammad Fathan Hidayat

Chemistry teacher and homeroom teacher Marchotridyo

EDU PASSION

Me with the Governor of West Java Mr. H. Mochamad Ridwan Kamil, S.T., M.U.D.

Assalammualaikum Warahmatullahi Wabarakatuh

On this occasion I will write about the event held at my school, SMAN 3 BANDUNG. the name of the event is EDU PASSION.

Edu Passion is an event held to secure our insights about the universities that we will enter after we graduate from high school later. in this event there were many representatives from many universities who came to this event to promote their universities, some even sent our school alumni there to share their experiences at the university.

In the event many prominent figures came to see and enliven the event, from alumni to influential figures in the city of Bandung. for example, Mr. Ridwan Kamil as the Governor of West Java came to give his appreciation and some of his experiences at the event.

there are many universities that promote their universities to the departments they are interested in there. starting from state universities to private universities. I visited several universities there, one of which was ITB (Bandung Institute of Technology). in ITB almost all departments there have a lot of interested people, and are much in demand by students at SMAN 3 BANDUNG, including me .... hahaha. at the stand, many ITB alumni from various departments (several) who spread their experiences at ITB and how the tips for entering ITB.Before... my father was also an ITB alumni and majored in Chemical Engineering.

after that there was UNPAD (Padjadjaran University). where the university places strata 1 schools in Jatinangor, and strata 2 in Bandung. I'm a little sad because I used to want to become a doctor at Unpad, but if in Jatinangor I couldn't because it was too far from my house. The bus? Taxi? no ... I can't. I brought Oxygen Tubes to study, before... my mother was also an alumni of UNPAD and majored in Anthropology, but when my mother was in the undergraduate education, the Unpad 1st degree was still in Bandung. if it's now in Jatinangor

and many more universities are on the Edu passion.

talk about food and drink. on the Edu Passion program there are many delicious and delicious food and beverage stands. for example, grilled sausages covered in savory tomato sauce and mayonnaise. Yummy ...

after a few seconds, minutes, hours passed. it's time for university representatives to hold seminars. really interesting what was said by them.

after that the students are repatriated and rested (oh really ? it looks like you haven't seen your homework agenda and your test schedule ...hahahaha...).

just do it ... everything will definitely be useful.

Thanks for visiting my blog.

See Ya !

Wassalammualaikum Warahmatullahi Wabarakatuh.

MY DREAM, MY GOAL, AND MY FUTURE

Assalammualaikum Warahmatullahi Wabarakatuh

My name is Muhammad Fathan Hidayat, I am often called fathan. Now I am 16 years old, I am an only child. i stayed at Jln. Cisitu Indah V no. 7 Bandung, West Java, Indonesia. I have a cousin named Dharma, he's religious and smart. I am the type of person who is religious, law-abiding, and someone who defends the right and fights the wrong. especially I am a person who keeps away from all the prohibitions of Allah SWT and I have the character of amar ma'ruf nahi munkar. it is indeed my excess, but it can also be my weakness. which means that someone who has an amar ma'ruf nahi munkar character must have received good and some refused and considered "you are too religious" or "you are too serious", they did not like it when they were wrongly criticized, like " is not haram forbidden? "," isn't watching a pornographic video haram? "," isn't smoking prohibited? ". of course not a few who take it seriously, they look forward or don't think I'm there. not infrequently insults and insults sparked to me, even though I have given the Quran and Hadith propositions, even rules / law.

besides, physical conditions that make it impossible to carry out strenuous activities, such as sports, etc. Because I have a heart problem, which is my heart is not compatible, I always use oxygen therapy with oxygen cylinders. and I always use it at school. not infrequently there are people who are not comfortable with my oxygen tube, starting from exploding / fear of being kicked / dangerous etc. sometimes there are also problems with my heart condition. When there are group assignments, I ask those who are not my group friends to move so that I can sit near my group. not infrequently they like to be indifferent, ignorant, angry, or even not listening. sometimes they say to me, "then we have to move? (with a little cynic)" Indeed, I feel sad about that. But nevermind. May God make them aware. indeed they don't always do that. but it still hurts a bit.

in my daily life, I was always accompanied by my parents. so I'm safe and if my heart disease recurs, my parents can handle it quickly and precisely.

Ok, we move on to another topic. I have a hobby of painting, studying and reciting. during Elementary School, I won 1st place in a drawing competition at the Bandung Air Show. in extracurricular activities at elementary school I also scouted and had won 1st place in drawing competitions with my friends, and now in high school I was appointed to be an enforcer at school with some of my friends. and in the intraculicular value the value of my eyes of alhamdulillah is quite satisfying.

in terms of my dream. I am interested in entering the Bandung Institute of Technology and majoring in Chemical Engineering, or Informatics Engineering. and God willing, I aspire to become an engineer.

By diligently learning and diligently worshiping Allah SWT.

Thank you for visiting my blog.

Wassalammualaikum Warahmatullahi Wabarakatuh.

Analytical Exposition Text

SMOKING KILLS YOU

BY : MUHAMMAD FATHAN HIDAYAT (XI SCIENCE 3)

if we want to smoke ... we better know what the risks are if we suck the tobacco roll. smoking kills you because 90% of lung cancers are caused by cigarettes, and also more than 4000 chemicals that endanger you. smoking also endangers the family itself due to smoke coming out of the cigarette. in fact, cigarette smoke endangers non-smokers.

Cigarettes contain ingredients that cause cancer in our bodies. 90% of people with lung cancer are caused by cigarettes, for example Tar. Living cigarette smoke settles in the lungs and damages the components of the lungs, tar also contains carcinogens that trigger cancer cell development in the body

Cigarettes have more than 4000 chemicals that endanger you, at least 60 of them can cause cancer. including Benzene and Oxidant gas. Benzene is a substance that is added to fuel oil, this substance causes cell damage at the genetic level and can be linked to several diseases such as kidney cancer and leukemia. while Oxidant gas is a gas that reacts with oxygen, the presence of oxidants in the body increases the risk of stroke and heart attack, and about 20% causes death.

There was a child who was hospitalized due to cigarette smoke from his father because his father was a smoker, there was a wife who had severe lung cancer due to her husband's smoker, and there was also a grandfather who coughed never healed because he was a cigarette addict, this is where why smoking also endangers the family itself.

Cigarette smoke from smokers can cause cancer in people who do not smoke. the risk increases by 20-30% in people who do not smoke. because in addition to cancer can also cause heart disease.

Smoking is at high risk of developing chronic diseases due to the ingredients of the cigarettes, and rook also endangers your family and yourself as well as non-smokers around you.

INVITATION CARD

Assalammualaikum Warahmatullahi Wabarakatuh
Hello Everyone !
this time I will show an invitation card made by my group
for assignments on 12 September 2018. Here it is......

The wedding invitation consists of :

1. Name of the hosts : Mr. and Mrs. Watson
2. Phrasing the invitation : Joyfully invite you to their son's wedding
3. The kind of event : wedding
4. Date : On Wednesday, the twelfth of September 
5. Time : at 7 o'clock
6. Venue : Claude Monet Garden, Giverny, France
7. Special Instruction : There will be dinner and dancing
8. Request to respond : Holmes

Thank You for visiting my blog

See you !

Wassalammualaikum Warahmatullahi Wabarakatuh

Debate(s): Opinions. My Analysis and Thoughts about Other Group's Debates.

Assalammualaikum Warahmatullahi Wabarakatuh

Hello Everyone !

on this blog,

 I will provide my analysis of my analysis, thoughts and resume from the Debate held in class XI Science 3

First topic: Freeport must be bought by the country or not

Pro opinion: The government will get many benefits from mining freeport such as taxes, and increase the country's economy.

counter opinion: the government is not sufficiently prepared to buy freeport, especially mining technology in Indonesia is not sophisticated enough to buy freeport, especially Indonesian workers who have not met the criteria to handle mining like freeport

My opinion :

In my opinion, it is better that the Government not only prepare carefully to buy freeport, but the government must think about how the government handles when the gold mine has become ours. if before and after the freeport is purchased it shows that the gold mine looks better managed by the freeport than our country, it means that the government failed to nationalize freeport but only in the ownership field.

Thank You  for seeing my blogg

Wassalammualaikum Warahmatullahi Wabarakatuh