{"id":84991,"date":"2025-06-01T02:59:13","date_gmt":"2025-06-01T02:59:13","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84991"},"modified":"2025-06-01T02:59:13","modified_gmt":"2025-06-01T02:59:13","slug":"which-one-of-the-following-is-the-first-enzyme-to-mix-with-food-in-the","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-first-enzyme-to-mix-with-food-in-the\/","title":{"rendered":"Which one of the following is the first enzyme to mix with food in the"},"content":{"rendered":"

Which one of the following is the first enzyme to mix with food in the digestive tract?<\/p>\n

[amp_mcq option1=”Trypsin” option2=”Cellulose” option3=”Pepsin” option4=”Amylase” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2020<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nDigestion begins in the mouth, where food is chewed and mixed with saliva. Saliva contains the enzyme salivary amylase (also known as ptyalin), which starts the enzymatic breakdown of carbohydrates (starch) into simpler sugars. Other enzymes listed, such as pepsin (in the stomach) and trypsin (in the small intestine), act later in the digestive tract. Cellulose is a type of carbohydrate, not a human digestive enzyme.
\n<\/section>\n
\n– The mouth is the beginning of the digestive tract where food mixes with saliva.
\n– Saliva contains salivary amylase (ptyalin).
\n– Salivary amylase starts the digestion of starch.
\n– Pepsin acts in the stomach, and trypsin acts in the small intestine.
\n<\/section>\n
\nSalivary amylase works best in a slightly alkaline to neutral pH (around 6.7 to 7.0) present in the mouth. Its activity is inhibited by the acidic environment of the stomach. Although carbohydrate digestion starts in the mouth, it is completed in the small intestine by pancreatic amylase.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following is the first enzyme to mix with food in the digestive tract? [amp_mcq option1=”Trypsin” option2=”Cellulose” option3=”Pepsin” option4=”Amylase” correct=”option4″] This question was previously asked in UPSC CDS-1 – 2020 Download PDFAttempt Online Digestion begins in the mouth, where food is chewed and mixed with saliva. Saliva contains the enzyme salivary amylase … <\/p>\n

Detailed SolutionWhich one of the following is the first enzyme to mix with food in the<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1087],"tags":[1288,1117,1289],"class_list":["post-84991","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1288","tag-biology","tag-digestive-system","no-featured-image-padding"],"yoast_head":"\nWhich one of the following is the first enzyme to mix with food in the<\/title>\n<meta name=\"description\" content=\"Digestion begins in the mouth, where food is chewed and mixed with saliva. Saliva contains the enzyme salivary amylase (also known as ptyalin), which starts the enzymatic breakdown of carbohydrates (starch) into simpler sugars. Other enzymes listed, such as pepsin (in the stomach) and trypsin (in the small intestine), act later in the digestive tract. Cellulose is a type of carbohydrate, not a human digestive enzyme. - The mouth is the beginning of the digestive tract where food mixes with saliva. - Saliva contains salivary amylase (ptyalin). - Salivary amylase starts the digestion of starch. - Pepsin acts in the stomach, and trypsin acts in the small intestine.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-first-enzyme-to-mix-with-food-in-the\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following is the first enzyme to mix with food in the\" \/>\n<meta property=\"og:description\" content=\"Digestion begins in the mouth, where food is chewed and mixed with saliva. Saliva contains the enzyme salivary amylase (also known as ptyalin), which starts the enzymatic breakdown of carbohydrates (starch) into simpler sugars. Other enzymes listed, such as pepsin (in the stomach) and trypsin (in the small intestine), act later in the digestive tract. Cellulose is a type of carbohydrate, not a human digestive enzyme. - The mouth is the beginning of the digestive tract where food mixes with saliva. - Saliva contains salivary amylase (ptyalin). - Salivary amylase starts the digestion of starch. - Pepsin acts in the stomach, and trypsin acts in the small intestine.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-is-the-first-enzyme-to-mix-with-food-in-the\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T02:59:13+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following is the first enzyme to mix with food in the","description":"Digestion begins in the mouth, where food is chewed and mixed with saliva. 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