Cho các nhận xét sau:

(1)       Có thể tạo được tối đa 2 dipeptit từ phản ứng trùng ngưng hỗn hợp Alanin và Glyxin

(2)       Khác với axit axetic, axit amino axetic có thể tham gia phản ứng với axit HCl hoặc phản ứng trùng ngưng

(3)       Giống với axit axetic, amino axit có tác dụng với bazo tạo muối và nước

(4)       Axit axetic và axít α-amino glutaric có thể làm đổi màu quỳ tím thành đỏ

(5)       Thủy phân không hoàn toàn peptit: Gly-Phe-Tyr-Gly-Lys-Gly-Phe-Tyr có thể thu được 6 tripeptit có chứa Gly

(6)       Cho HNO3 đặc vào ống nghiệm chứa anbumin thấy tạo dung dịch màu tím.

Có bao nhiêu nhận xét đúng?  

Chia sẻ

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