Jawaban Latihan Soal Semua Mapel UTBK/SNBT Lengkap & Gratis

The food stimulating a suspicion is on course for inspiring even more wonder from a medical standpoint as scientists have reported the latest evidence that chili peppers are a heart-healthy food with potential to protect against the no. 1 cause of death in the developed world. The report was part of the 243^rd National Meeting and Exposition of the American Chemical Society (ACS).

The study focused on capsaicin and its fiery-hot relatives, a spicy family of substances termed “capsaicinoids”. As the stuff that gives cayennes, jalapenos, habaneros and other chili peppers their heat, capsaicin already has an established role in rub-on-the-skin creams to treat arthritis and certain forms of pain. Past research suggested that spicing food with chilies can lower blood pressure in people with that condition, reduce blood cholesterol, and ease the tendency for dangerous blood clots to form.

“Our research has reinforced and expanded knowledge about how these substances in chilies work in improving heart health,” said Zhen-Yu Chen, who presented the study. “ We now have a clearer and more detailed portrait of their innermost effects on genes and other mechanism that influence cholesterol and the health of blood vessels. It is among the first research to provide that information. “ The team found, for instance, that capsaicin and a close chemical relative boost heart health in two ways. They lower cholesterol levels by reducing accumulation of cholesterol in the body and increasing its breakdown and excretion in the feces. They also block action of a gene that makes arteries contract, restricting the flow of blood to the hearts and other organs. The blocking action allows more blood to flow through blood vessels.

“We conclude that capsaicinoid were beneficial in improving a range of factors related to heart and blood vessel health,” said Chen, a professor of food and nutritional science at the Chinese University of Hong Kong. “But we certainly do not recommend that people start consuming chilies to an excess. A good diet is a matter of balance. And remember, chilies are no substitute for the prescription for meditations proven to be beneficial. They may be a nice supplement, however, for people who find the hot flavour pleasant”.

Chen and his colleagues turned to hamsters for the study, animals that serve as stand-ins for humans in research that cannot be performed in people. They gave the hamsters high-cholesterol diets, divides them into groups, and supplemented each group’s food with either no capsaicinoids in the control group or various amounts of capsaicinoids. The scientists then analysed the effects.

In addition to reducing total cholesterol levels in the blood, capsaicinoids reduced levels of the so-called “bad” cholesterol which deposits into blood vessels, but did not affect levels of so-called “good” cholesterol. The team found indications that capsaicinoids may reduce the size of deposits that already have formed in blood vessels, narrowing arteries in ways that can lead to heart attacks or strokes.

Capsaicinoids also blocked the activity of a gene that produce cycloosygenase-2, a substance that makes the muscles around blood vessels tighten. By blocking it, muscles can relax and widen, allowing more blood to flow.

 

The author of the passage implies that ...

The food stimulating a suspicion is on course for inspiring even more wonder from a medical standpoint as scientists have reported the latest evidence that chili peppers are a heart-healthy food with potential to protect against the no. 1 cause of death in the developed world. The report was part of the 243^rd National Meeting and Exposition of the American Chemical Society (ACS).

The study focused on capsaicin and its fiery-hot relatives, a spicy family of substances termed “capsaicinoids”. As the stuff that gives cayennes, jalapenos, habaneros and other chili peppers their heat, capsaicin already has an established role in rub-on-the-skin creams to treat arthritis and certain forms of pain. Past research suggested that spicing food with chilies can lower blood pressure in people with that condition, reduce blood cholesterol, and ease the tendency for dangerous blood clots to form.

“Our research has reinforced and expanded knowledge about how these substances in chilies work in improving heart health,” said Zhen-Yu Chen, who presented the study. “ We now have a clearer and more detailed portrait of their innermost effects on genes and other mechanism that influence cholesterol and the health of blood vessels. It is among the first research to provide that information. “ The team found, for instance, that capsaicin and a close chemical relative boost heart health in two ways. They lower cholesterol levels by reducing accumulation of cholesterol in the body and increasing its breakdown and excretion in the feces. They also block action of a gene that makes arteries contract, restricting the flow of blood to the hearts and other organs. The blocking action allows more blood to flow through blood vessels.

“We conclude that capsaicinoid were beneficial in improving a range of factors related to heart and blood vessel health,” said Chen, a professor of food and nutritional science at the Chinese University of Hong Kong. “But we certainly do not recommend that people start consuming chilies to an excess. A good diet is a matter of balance. And remember, chilies are no substitute for the prescription for meditations proven to be beneficial. They may be a nice supplement, however, for people who find the hot flavour pleasant”.

Chen and his colleagues turned to hamsters for the study, animals that serve as stand-ins for humans in research that cannot be performed in people. They gave the hamsters high-cholesterol diets, divides them into groups, and supplemented each group’s food with either no capsaicinoids in the control group or various amounts of capsaicinoids. The scientists then analysed the effects.

In addition to reducing total cholesterol levels in the blood, capsaicinoids reduced levels of the so-called “bad” cholesterol which deposits into blood vessels, but did not affect levels of so-called “good” cholesterol. The team found indications that capsaicinoids may reduce the size of deposits that already have formed in blood vessels, narrowing arteries in ways that can lead to heart attacks or strokes.

Capsaicinoids also blocked the activity of a gene that produce cycloosygenase-2, a substance that makes the muscles around blood vessels tighten. By blocking it, muscles can relax and widen, allowing more blood to flow.

Which paragraphs of the passage most effectively illustrate the curing power of capsaicinoids?

The food stimulating a suspicion is on course for inspiring even more wonder from a medical standpoint as scientists have reported the latest evidence that chili peppers are a heart-healthy food with potential to protect against the no. 1 cause of death in the developed world. The report was part of the 243^rd National Meeting and Exposition of the American Chemical Society (ACS).

The study focused on capsaicin and its fiery-hot relatives, a spicy family of substances termed “capsaicinoids”. As the stuff that gives cayennes, jalapenos, habaneros and other chili peppers their heat, capsaicin already has an established role in rub-on-the-skin creams to treat arthritis and certain forms of pain. Past research suggested that spicing food with chilies can lower blood pressure in people with that condition, reduce blood cholesterol, and ease the tendency for dangerous blood clots to form.

“Our research has reinforced and expanded knowledge about how these substances in chilies work in improving heart health,” said Zhen-Yu Chen, who presented the study. “ We now have a clearer and more detailed portrait of their innermost effects on genes and other mechanism that influence cholesterol and the health of blood vessels. It is among the first research to provide that information. “ The team found, for instance, that capsaicin and a close chemical relative boost heart health in two ways. They lower cholesterol levels by reducing accumulation of cholesterol in the body and increasing its breakdown and excretion in the feces. They also block action of a gene that makes arteries contract, restricting the flow of blood to the hearts and other organs. The blocking action allows more blood to flow through blood vessels.

“We conclude that capsaicinoid were beneficial in improving a range of factors related to heart and blood vessel health,” said Chen, a professor of food and nutritional science at the Chinese University of Hong Kong. “But we certainly do not recommend that people start consuming chilies to an excess. A good diet is a matter of balance. And remember, chilies are no substitute for the prescription for meditations proven to be beneficial. They may be a nice supplement, however, for people who find the hot flavour pleasant”.

Chen and his colleagues turned to hamsters for the study, animals that serve as stand-ins for humans in research that cannot be performed in people. They gave the hamsters high-cholesterol diets, divides them into groups, and supplemented each group’s food with either no capsaicinoids in the control group or various amounts of capsaicinoids. The scientists then analysed the effects.

In addition to reducing total cholesterol levels in the blood, capsaicinoids reduced levels of the so-called “bad” cholesterol which deposits into blood vessels, but did not affect levels of so-called “good” cholesterol. The team found indications that capsaicinoids may reduce the size of deposits that already have formed in blood vessels, narrowing arteries in ways that can lead to heart attacks or strokes.

Capsaicinoids also blocked the activity of a gene that produce cycloosygenase-2, a substance that makes the muscles around blood vessels tighten. By blocking it, muscles can relax and widen, allowing more blood to flow.

 

In relation to paragraph 2, what does paragraph 3 inform?

         The present study sought to document the word reading and comprehension levels attained by children who were implanted by 5 year of age. It was hypothesized that the improved speech perception abilities acquired with cochlear implantation would promote phonological coding skills. (1)…

            Three subtests of diagnostic reading assessment batteries standardized on hearing children were administered to 181 children between 8 year 0 month and 9 year 11 month of age who had 4 to 6 years of implant experience. (2) … It included a lexical decision task, a rhyme task, and the digit span subtests of the Wechsler Intelligence Scale for Children.

        Over half of the children scored within the average range for their age compared with the normative data for hearing children. (3) … They were higher nonverbal intelligence, higher family socio-economic status, and later onset of deafness between birth and 36 months.

(Adapted from Journal of Ear and Hearing)

Which option best complete (2)?

        The present study sought to document the word reading and comprehension levels attained by children who were implanted by 5 year of age. It was hypothesized that the improved speech perception abilities acquired with cochlear implantation would promote phonological coding skills. (1)…

      Three subtests of diagnostic reading assessment batteries standardized on hearing children were administered to 181 children between 8 year 0 month and 9 year 11 month of age who had 4 to 6 years of implant experience. (2) … It included a lexical decision task, a rhyme task, and the digit span subtests of the Wechsler Intelligence Scale for Children.

     Over half of the children scored within the average range for their age compared with the normative data for hearing children. (3) … They were higher nonverbal intelligence, higher family socio-economic status, and later onset of deafness between birth and 36 months.

(Adapted from Journal of Ear and Hearing)

Which option best completes (1)?

         As spring arrives, albeit quite late this year for many of us, we notice the changing of seasons not only by the weather, but also by a host of natural events. Depending on where you live, the flowers may poke through the snow, the birds may be back, or the cherry trees may bloom. There is an orderly sequence of events that seem to occur, with various spring flowers appearing in order, red maple buds bursting into new layers, or the old lilac by the barn scenting the air. This seasonal cycle of natural phenomena is called phenology. Global climate change appears to be interfering with the phenology of many species, at the very heart of species interactions.

         In temperate regions like northern half the United States, there is comparatively little biological activity in winter. Most plants are dormant, and so are the insects feeding on them. In turn, animal that rely on these insects, such as bats and birds, are hibernating or spending the cold months in more southerly locations. Ectotherms like reptiles and amphibians, which period constrains all the growing, breeding, and dispersing activities that plants and animals do to a short favorable window. That is what makes spring so vibrant, with plants flowering and putting on new growth, insects emerging and breeding, and birds flying back to take advantage of this short-lived bounty. The onsets of each of these activities add up to so many phonological markers.

       Different organism respond to different cues to initiate seasonal activities. Many plants will start growing leaves again after a set period of dormancy, which very roughly dictates the leaf-out window. Cues that more precisely determine when the buds break can be soil temperature, air temperature, or water availability. Similarly, temperature cues can promote the beginning of insect activity. Day length itself can be the operative trigger for some seasonal events. It is only when there are a sufficient number of daylight hours that reproductive hormones will be produced in many bird species.

        The most energy-demanding period in the life of most animals is when they reproduce. For that reason, it is to their advantage to coincide breeding (and for many, the raising of young) during a period when food is most abundant. Caterpillars should hatch just as the young tender leaves of oak tree emerge, before they harden and become less nutritious. Breeding songbirds need to time the hatching of their young just during that peak in caterpillar activity, so they can take advantage of this rich source of protein to feed their offspring. Many species have evolved to exploit peaks in resource availability, so all these seemingly independent phonological events are indeed part of a complex web of precise interactions. Disturbances in seasonal events can have profound effects on ecosystems.

The ideas in the passage may be best summarized that ...

     As spring arrives, albeit quite late this year for many of us, we notice the changing of seasons not only by the weather, but also by a host of natural events. Depending on where you live, the flowers may poke through the snow, the birds may be back, or the cherry trees may bloom. There is an orderly sequence of events that seem to occur, with various spring flowers appearing in order, red maple buds bursting into new layers, or the old lilac by the barn scenting the air. This seasonal cycle of natural phenomena is called phenology. Global climate change appears to be interfering with the phenology of many species, at the very heart of species interactions.

         In temperate regions like northern half the United States, there is comparatively little biological activity in winter. Most plants are dormant, and so are the insects feeding on them. In turn, animal that rely on these insects, such as bats and birds, are hibernating or spending the cold months in more southerly locations. Ectotherms like reptiles and amphibians, which period constrains all the growing, breeding, and dispersing activities that plants and animals do to a short favorable window. That is what makes spring so vibrant, with plants flowering and putting on new growth, insects emerging and breeding, and birds flying back to take advantage of this short-lived bounty. The onsets of each of these activities add up to so many phonological markers.

       Different organism respond to different cues to initiate seasonal activities. Many plants will start growing leaves again after a set period of dormancy, which very roughly dictates the leaf-out window. Cues that more precisely determine when the buds break can be soil temperature, air temperature, or water availability. Similarly, temperature cues can promote the beginning of insect activity. Day length itself can be the operative trigger for some seasonal events. It is only when there are a sufficient number of daylight hours that reproductive hormones will be produced in many bird species.

        The most energy-demanding period in the life of most animals is when they reproduce. For that reason, it is to their advantage to coincide breeding (and for many, the raising of young) during a period when food is most abundant. Caterpillars should hatch just as the young tender leaves of oak tree emerge, before they harden and become less nutritious. Breeding songbirds need to time the hatching of their young just during that peak in caterpillar activity, so they can take advantage of this rich source of protein to feed their offspring. Many species have evolved to exploit peaks in resource availability, so all these seemingly independent phonological events are indeed part of a complex web of precise interactions. Disturbances in seasonal events can have profound effects on ecosystems.

In presenting the ideas, the author starts by ...

There have been amazing world-breaking scientific advances. However, the dark cloud on the horizon is the emerging Ebola epidemic in West Africa and the warning undercurrent that comes with it. At the time of writing at least 7,000 people have been infected and half of those have died. It is estimated that the numbers can be doubled or even tripled. Also, because the rates of infection appear to be growing exponentially, tens of thousands, or even millions, might ultimately be affected.

        To put the scale of the present situation into perspective, since the first recorded case of Ebola in the Democratic Republic of Congo 38 years ago, there have been fewer than 2,500 deaths documented in total. Thus, this single present outbreak is already three times larger than the entire Ebola death toll ever. It is also no longer just an African problem. The West has had its own wake-up call this week as the US and Spain, countries previously regarded as immune to the threat thanks to modern medicine, have reported imported cases of the condition and, despite strict infection-control guidelines and practices, onward transmissions of Ebola on their home soil.

     What is remarkable though is that, while Ebola is terrifying and dramatic in its impact when it causes an outbreak, it appears to be a relatively easy agent to fight. Experimental vaccines tested so far on animals have been impressively effective. The vaccines protect against even injection of the living Ebola virus. However, because they are at a test stage, these agents, which will be critical if we are to nip outbreak in the bus, are nowhere near ready for mass production. Trials are only now getting underway of human versions of the vaccines in the UK, and the US. “Way too late,” many are saying, to prevent the inevitable.

     Hence, why is it that, nearly 440 years after Ebola first surfaced, the world finds itself in a state of panic. Now, up to ten thousand people are dead, owing to a bug that is probably preventable thanks to scientific research done decades ago. The answer is that Ebola was regarded as someone else’s problem. It was a tropical disease of low importance and (presumed to be) constrained by geography and climate to a part of the world that held little economic interest to the rest of us. Still, therein lies a salutary lesson because, if even a tiny fraction had been spent 20 years ago to develop an Ebola vaccine, we probably would not be in this position now. The present outbreak is now costing the world in terms of lost productivity, humanitarian aid and human lives lost. It is easy to dismiss tropical diseases as an issue that will not affect the West. However, the present situation is a warning shot across our bows that we ignored at our peril.

How are ideas in paragraph 1 and 2 related?

        The present study sought to document the world reading and comprehension levels attained by children who were implanted by 5 year of age. It was hypothesized that the improved speech perception abilities acquired with cochlear implantation would promote phonological coding skills. (1)…

          Three subtests of diagnostic reading assessment batteries standardized on hearing children were administered to 181 children between 8 year 0 month and 9 year 11 month of age who had 4 to 6 years of implant experience. (2) … It included a lexical decision task, a rhyme task, and the digit span subtest of the Wechsler Intelligence Scale for Children.

         Over half the children scored within the average range for their age compared with the normative data for hearing children. (3) … They were higher nonverbal intelligence, higher family socio-economic status, and later onset of deafness between birth and 36 months.

(Adapted from Journal of Ear and Hearing)

Which option best completes (3)?

        The present study sought to document the world reading and comprehension levels attained by children who were implanted by 5 year of age. It was hypothesized that the improved speech perception abilities acquired with cochlear implantation would promote phonological coding skills. (1)…

          Three subtests of diagnostic reading assessment batteries standardized on hearing children were administered to 181 children between 8 year 0 month and 9 year 11 month of age who had 4 to 6 years of implant experience. (2) … It included a lexical decision task, a rhyme task, and the digit span subtest of the Wechsler Intelligence Scale for Children.

         Over half the children scored within the average range for their age compared with the normative data for hearing children. (3) … They were higher nonverbal intelligence, higher family socio-economic status, and later onset of deafness between birth and 36 months.

(Adapted from Journal of Ear and Hearing)

Which option best completes (1)?