user-avatar
iamnhyenn
2 năm trước
Câu 64. Tại sao để bảo quản thịt, cá được lâu người ta thường ướp muối (NaCl)? A. Tạo môi trường áp suất thẩm thấu cao => vi sinh vật bị mất nước =>ức chế sinh trưởng vi sinh vật. B. Tạo áp suất thẩm thấu cao => nước đi vào trong vi sinh vật => trương lên =>tế bào vỡ ra. C. Tạo áp suất thẩm thấu thấp =>nước trong tế bào vi sinh vật rút ra ngoài =>co nguyên sinh =>ức chế vi sinh vật. D. Tạo áp suất thẩm thấu thấp=> nước đi vào trong tế bào vi sinh vật => trương lên =>tế bào vỡ ra.
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. Read the article then answer the questions. Take a Bath ! Traveling is fun because you can see how people in other parts of the world live. One thing travelers don't often think about before traveling is how other cultures bathe. And bathrooms in many countries many different from the kind you are used to. In the United States, most people take a shower once a day in the morning. The showerhead is usually mounted on the wall and cannot be moved. The bather simply stands under the water, gets wet, scrubs with soap and often a washcloth, and then rinses off. Chidren often take a bath each night and enjoy playing with small toys such as boats and rubber ducks. Many adults, especially women, enjoy a soothing bath to get rid of stress at the end of the day. It is important to remember that when you take a shower or bath in the United States, you should be careful to keep the water inside the bathtub or shower. Unlike bathrooms in many countries, there is no drain in the floor. If water gets on the floor it cannot go anywhere and must be cleaned up with a towel or mop. It can also cause problems for the floor. So be careful. 1) What the traveller don't often think about ? ____________________________________________________ 2) When do Americans often take a shower ? ____________________________________________________ 3) What about children ? When do they take a bath ?? _____________________________________________________ 4) What should you remember when taking a shower or bath in the United States ? _________________________________________________________________________________________ 5) Do you think that taking bath can get rid of stress at the end of the day ? ________________________________________________________________________________________ 2. Put the words in the correct order to make meaningful sentences. 1) When/ game/ be careful/ you/ online/ , / when/ make friends/ strangers/ you/ with/. __________________________________________________________________________________________ 2) We/ that/ can/ Kim/ likes/ see/ the/ piano/ playing /. __________________________________________________________________________________________ 3) Such as/ hobbies/ or/ making/ things/ crafts/ collecting/ interesting/ are/ some /. __________________________________________________________________________________________ 4) health/ sitting/ problems/ all/ day/ in front of/ the/ can/ completer/ cause /. __________________________________________________________________________________________ 5) fancy/ you/ do/ children/ with/ working ? / ____________________________________________________________________________________

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team