Proteins are made up of folded irregularly chains, the links of which are amino acids.
A. made up of
B. folded irregularly
C. the links
D. which
K
Khách
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9 tháng 9 2017
Đọc đoạn văn sau và trả lời các câu hỏi:
A balanced diet contains proteins, which are composed of complex amino acids. There are 20 types of amino acids, comprising about 16 percent of the body weight in a lean individual. A body needs all 20 to be healthy. Amino acids can be divided into two groups: essential 5 and nonessential. There are 9 essential amino acids. These are the proteins that the body cannot produce by itself, so a healthy individual must ingest them. The 11 nonessential amino acids, on the other hand, are produced by the body, so it is not necessary to ingest them. Proteins are described as being either high-quality or low-quality, 10 depending on how many of the 9 essential amino acids the food contains. High-quality proteins, typically found in animal meats, are proteins that have ample amounts of the essential amino acids. Low-quality proteins are mainly plant proteins and usually lack one or more of the essential amino acids. Since people who follow a strict vegetarian 15 diet are ingesting only low-quality proteins, they must make sure that their diets contain a variety of proteins, in order to ensure that what is lacking in one food is available in another. This process of selecting a variety of the essential proteins is called protein complementation. Since an insufficient amount of protein in the 20 diet can be crippling, and prolonged absence of proteins can cause death, it is imperative that a vegetarian diet contains an ample amount of the essential proteins.
1. With what topic is this passage primarily concerned?
(A) the 20 types of amino acids
(B) high- and low-quality proteins
(C) the process of complementation
(D) healthy diets for vegetarians
2. The word "lean" in line 3 could be best replaced by
(A) thin
(B) fat
(C) tall
(D) short
3. The word "ingest" in line 7 is closest in meaning to which of the following?
(A) chew
(B) swallow
(C) suck
(D) drink
4. The word "ample" in line 13 is closest in meaning to which of the following?
(A) meager
(B) frequent
(C) substantial
(D) harmful
5. Which of the following would NOT be an example of a low-quality protein?
(A) legumes
(B) apples
(C) grains
(D) tuna
6. As used in line 14, which of the following words is closest in meaning to "strict"?
(A) responsible
(B) casual
(C) harmonious
(D) rigid
7. According to the passage, a vegetarian could die from insufficient protein ingestion if he or she
(A) did not follow a varied and properly protein-complemented diet.
(B) ate too many animal proteins,and could not digest them properly.
(C) did not follow a diet in which nonessential proteins were ingested.
(D) ate too many low-quality proteins.
8. Which of the following is closest in meaning to the word "crippling" as used in line 20?
(A) discouraging
(B) betraying
(C) incapacitating
(D) amazing
9. Which of the following words could best replace the word "prolonged" in line 20?
(A) narrow
(B) hollow
(C) hard-hearted
(D) extended
10. In line 21, the word "imperative" can be best replaced by
(A) crucial
(B) impossible
(C) wonderful
(D) satisfying
11. Which of the following best describes the author's tone in this passage?
(A) forceful
(B) light
(C) casual
(D) argumentative
12. Which statement best describes the organization of this passage?
(A) Contrasting views concerning proteins are compared.
(B) The author moves from a general comment to a specific argument.
(C) A statement is given and its cause is then discussed.
(D) Items are discussed in their order of importance.
9 tháng 9 2017
Đọc đoạn văn sau và trả lời các câu hỏi:
A balanced diet contains proteins, which are composed of complex amino acids. There are 20 types of amino acids, comprising about 16 percent of the body weight in a lean individual. A body needs all 20 to be healthy. Amino acids can be divided into two groups: essential 5 and nonessential. There are 9 essential amino acids. These are the proteins that the body cannot produce by itself, so a healthy individual must ingest them. The 11 nonessential amino acids, on the other hand, are produced by the body, so it is not necessary to ingest them. Proteins are described as being either high-quality or low-quality, 10 depending on how many of the 9 essential amino acids the food contains. High-quality proteins, typically found in animal meats, are proteins that have ample amounts of the essential amino acids. Low-quality proteins are mainly plant proteins and usually lack one or more of the essential amino acids. Since people who follow a strict vegetarian 15 diet are ingesting only low-quality proteins, they must make sure that their diets contain a variety of proteins, in order to ensure that what is lacking in one food is available in another. This process of selecting a variety of the essential proteins is called protein complementation. Since an insufficient amount of protein in the 20 diet can be crippling, and prolonged absence of proteins can cause death, it is imperative that a vegetarian diet contains an ample amount of the essential proteins.
1. With what topic is this passage primarily concerned?
(A) the 20 types of amino acids
(B) high- and low-quality proteins
(C) the process of complementation
(D) healthy diets for vegetarians
2. The word "lean" in line 3 could be best replaced by
(A) thin
(B) fat
(C) tall
(D) short
3. The word "ingest" in line 7 is closest in meaning to which of the following?
(A) chew
(B) swallow
(C) suck
(D) drink
4. The word "ample" in line 13 is closest in meaning to which of the following?
(A) meager
(B) frequent
(C) substantial
(D) harmful
5. Which of the following would NOT be an example of a low-quality protein?
(A) legumes
(B) apples
(C) grains
(D) tuna
6. As used in line 14, which of the following words is closest in meaning to "strict"?
(A) responsible
(B) casual
(C) harmonious
(D) rigid
7. According to the passage, a vegetarian could die from insufficient protein ingestion if he or she
(A) did not follow a varied and properly protein-complemented diet.
(B) ate too many animal proteins,and could not digest them properly.
(C) did not follow a diet in which nonessential proteins were ingested.
(D) ate too many low-quality proteins.
8. Which of the following is closest in meaning to the word "crippling" as used in line 20?
(A) discouraging
(B) betraying
(C) incapacitating
(D) amazing
9. Which of the following words could best replace the word "prolonged" in line 20?
(A) narrow
(B) hollow
(C) hard-hearted
(D) extended
10. In line 21, the word "imperative" can be best replaced by
(A) crucial
(B) impossible
(C) wonderful
(D) satisfying
11. Which of the following best describes the author's tone in this passage?
(A) forceful
(B) light
(C) casual
(D) argumentative
12. Which statement best describes the organization of this passage?
(A) Contrasting views concerning proteins are compared.
(B) The author moves from a general comment to a specific argument.
(C) A statement is given and its cause is then discussed.
(D) Items are discussed in their order of importance.
1 tháng 4 2016
kết quả là:168 nha bạn mình ko nhớ cách làm mình chỉ nhớ kết quả thôi k cho mình nha
7 tháng 4 2017
2 links long cm is :
22 - 14 = 8 ( cm )
1 links long cm is
8 : 2 = 4 ( cm )
One Chain long cm is
14 - ( 4 x 3 ) = 2 ( cm )
Chain with 40 links long cm is
2 + 40 x 4 = 162 ( cm )
Mình best Tiếng anh nhé
12 tháng 3 2016
Một chuỗi có 3 liên kết là 14cm dài. Một chuỗi làm từ 5 Liên kết cùng loại dài 22 cm. Bao lâu là một chuỗi với 40 liên kết như vậy?
Trả lời: Một chuỗi với 40 liên kết như vậy là?
7 tháng 4 2017
2 links long cm is :
22 - 14 = 8 ( cm )
1 links long cm is
8 : 2 = 4 ( cm )
One Chain long cm is
14 - ( 4 x 3 ) = 2 ( cm )
Chain with 40 links long cm is
2 + 40 x 4 = 162 ( cm )
Mình best Tiếng anh nhé
4 tháng 8 2018
Đáp án : B
“which” - > “where” . Ở đây cần một mệnh đề thay để chỉ địa điểm (bedrock)
6 tháng 7 2017
Đáp án : B
“has been never” -> “has never been”. Sai vị trí của trạng ngữ, “never” phải đứng giữa “has/have” và động từ
Đáp án B thành “irregularly folded”
Trạng từ đứng trước tính từ để bổ sung nghĩa cho tính từ
Dịch: Protein được tạo thành từ các chuỗi gập đôi bất thường mà liên kết của chúng là các amino axit.