Bradykinin là một peptide có trong huyết tương, có vai trò quan trọng trong phản ứng viêm (gây giãn mạch, tăng tính thấm mao mạch và gây đau). Bradykinin có trật tự sắp xếp các amino acid như sau: Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg.
Cho các nhận định sau:
(a) Bradykinin thuộc loại nonapeptide.
(b) Thuỷ phân hoàn toàn bradykinin thu được 5 amino acid.
(c) Thuỷ phân không hoàn toàn bradykinin thu được tối đa 7 dipeptide.
(d) Bradykinin phản ứng với Cu(OH)2 trong môi trường kiềm tạo dung dịch màu xanh lam.
Các nhận định đúng là
Bradykinin là một peptide có trong huyết tương, có vai trò quan trọng trong phản ứng viêm (gây giãn mạch, tăng tính thấm mao mạch và gây đau). Bradykinin có trật tự sắp xếp các amino acid như sau: Arg-Pro-Pro-Gly-Phe-Ser-Pro-Phe-Arg.
Cho các nhận định sau:
(a) Bradykinin thuộc loại nonapeptide.
(b) Thuỷ phân hoàn toàn bradykinin thu được 5 amino acid.
(c) Thuỷ phân không hoàn toàn bradykinin thu được tối đa 7 dipeptide.
(d) Bradykinin phản ứng với Cu(OH)2 trong môi trường kiềm tạo dung dịch màu xanh lam.
Các nhận định đúng làCâu hỏi liên quan
Read the following passage about Bonds Forged Beyond Blood and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22.
In today's interconnected world, (18)_________. These relationships are forged through shared experiences, mutual understanding, and deep emotional bonds that often surpass traditional family ties. While blood relations (19)_________, especially in diverse communities and modern social networks.
These special bonds are built with people who share our values, dreams, and life perspectives. Friends (20)_________. If blood relations were the only valid form of kinship, many individuals would miss out on meaningful connections that shape their lives. Having weathered countless storms together, chosen family members develop an unbreakable bond that strengthens over time, particularly during major life transitions and personal growth moments.
Some might question the authenticity of chosen families, but these relationships prove themselves genuine through actions rather than genetics. People select their chosen family members carefully, and this deliberate choice often results in deeper understanding and acceptance. Formed through shared experiences and mutual growth, (21)_________. Research shows that chosen families significantly improve mental health and overall wellbeing.
Whether celebrating achievements or facing setbacks, chosen families create safe spaces for vulnerability and growth. (22)_________, and their support comes from a place of genuine care rather than duty. These connections, though not bound by blood, create lasting legacies of love, understanding, and acceptance that enrich our lives immeasurably. Modern society increasingly recognizes and values these chosen family bonds.
Dãy số nào sau đây có giới hạn bằng 0?
Read the passage below and choose A, B, C or D to answer each question from 641 to 645.
Cities develop as a result of functions that they can perform. Some functions result directly from the ingenuity of the citizenry, but most functions result from the needs of the local area and of the surrounding hinterland (the region that supplies goods to the city and to which the city furnishes services and other goods). Geographers often make a distinction between the situation and the site of a city. Situation refers to the general position in relation to the surrounding region, whereas site involves physical characteristics of the specific location. Situation is normally much more important to the continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is continuing prosperity of a city. If a city is well situated in regard to its hinterland, its development is much more likely to continue. Chicago, for example, possesses an almost unparalleled situation: it is located at the southern end of a huge lake that forces east-west transportation lines to be compressed into its vicinity, and at a meeting of significant land and water transport routes. It also overlooks what is one of the world’s finest large farming regions. These factors ensured that Chicago would become a great city regardless of the disadvantageous characteristics of the available site, such as being prone to flooding during thunderstorm activity.
Similarly, it can be argued that much of New York City’s importance stems from its early and continuing advantage of situation. Philadelphia and Boston both originated at about the same time as New York and shared New York’s location at the western end of one of the world’s most important oceanic trade routes, but only New York possesses an easy-access functional connection (the Hudson- Mohawk Lowland) to the vast Midwestern Hinterland. This account does not alone explain New York’s primacy, but it does include several important factors. Among the many aspects of situation that help to explain why some cities grow and others do not, original location on a navigable waterway seems particularly applicable. Of course, such characteristics as slope, drainage, power resources, river crossings, coastal shapes, and other physical characteristics help to determine city location, but such factors are normally more significant in early stages of city development than later.
Which of the following is NOT the advantage of Chicago’s location?
Nội dung nào sau đây là triển vọng của cộng đồng ASEAN?
Sự phân bố các điểm dân cư nông thôn thường được biểu hiện bằng phương pháp gì?
Một vật dao động điều hòa đang chuyển động từ vị trí cân bằng đến vị trí biên âm thì
Một trong những đại diện tiêu biểu của trào lưu Triết học Ánh sáng ở Pháp (thế kỉ XVIII) là
Healthy mind, healthy body
“A healthy mind lives in a healthy body” is a saying (1) ______ to have often been used by the ancient Greeks. Thousands of years later, the same idea still applies. According to health experts, it’s advisable (2) ______ eight to ten glasses of water every day. However, water itself is not enough; a balanced diet is essential, too. A healthy body naturally is the result of doing exercise. Many people, however, do not like gyms and object to going there for different reasons. Some, for instance, say that aerobic sessions are too difficult to follow while others say that gyms are just too expensive. Many people also say that they have (3) ______ in finding time to exercise due to their busy lifestyle, but the truth is that everyone can make a little time every now and then. Regardless of the way people choose to exercise, it is important to remember that there’s no point (4) ______ doing it only for a short period of time. Last but not least, (5) ______ a positive attitude and doing away with negative thoughts contribute to one’s good health. In short, following (6) ______ surely helps in having a healthy mind and body.
Read the following advertisement and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
Cho hai tập hợp A=[−5;3),B=(1;+∞). Khi đó A∩B là tập nào sau đây?
Sóng điện từ và sóng âm khi truyền từ không khí vào thủy tinh thì tần số
Ở loài ngô, bộ nhiễm sắc thể lưỡng bội là 2n = 20. Theo lý thuyết, số lượng nhiễm sắc thể có trong mỗi tế bào ở kì sau của quá trình nguyên phân là?
Read the following advertisement and mark the letter A, B, C, or D to indicate the option that best fits each of the numbered blanks from 1 to 6.
JOIN THE INTERNATIONAL CULTURAL FESTIVAL!
Are you looking (1) ______ a fun and exciting event? Come to the International Cultural Festival this weekend! This amazing event brings together cultures from around the world, offering you the chance to enjoy (2) ______ different traditions, foods, and music. This is a great chance to make new friends and (3) ______ traditions from various countries. A special part of the festival is the art exhibition, where (4) ______ works from local and international artists will be displayed. Don’t miss the opportunity to experience (5) ______ variety of cultural activities all in one place. Everyone is welcome to join the celebration, and there’s something for all ages to enjoy. The festival (6) ______ at the city park from 10 AM to 5 PM on Saturday. See you there!
Are you looking (1) ______ a fun and exciting event?Quan sát bức tranh dưới đây và trả lời câu hỏi:
Câu hỏi: Nội dung nào dưới đây không được phản ánh thông qua bức tranh biếm họa “Tình cảnh người nông dân Pháp trước cách mạng”?
Một loại mạng hoạt động trong phạm vi nhỏ giữa các máy tính là
Lớp 10B1 có 7 học sinh giỏi Toán, 5 học sinh giỏi Lý, 6 học sinh giỏi Hóa, 3 học sinh giỏi cả Toán và Lý, 4 học sinh giỏi cả Toán và Hóa, 2 học sinh giỏi cả Lý và Hóa, 1 học sinh giỏi cả 3 môn Toán, Lý, Hóa. Số học sinh giỏi ít nhất một môn (Toán, Lý, Hóa) của lớp 10B1 là:
Lưu trữ trực tuyến ra đời giúp khắc phục điều gì sau đây?
Phương pháp nào dưới đây không phảilà phương pháp học tập hóa học nhằm phát triển năng lực hóa học?
Khi được tích hợp vào một thiết bị hoặc hệ thống, vi điều khiển còn được gọi là
Hóa chất được sử dụng trong thí nghiệm hô hấp ở hạt nảy mầm là gì?
Phát biểu nào trong các phát biểu bên dưới là đúng?