{"id":87226,"date":"2025-06-01T06:36:58","date_gmt":"2025-06-01T06:36:58","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87226"},"modified":"2025-06-01T06:36:58","modified_gmt":"2025-06-01T06:36:58","slug":"the-movement-of-a-substance-against-a-diffusion-gradient-with-the-use","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-movement-of-a-substance-against-a-diffusion-gradient-with-the-use\/","title":{"rendered":"The movement of a substance against a diffusion gradient with the use"},"content":{"rendered":"

The movement of a substance against a diffusion gradient with the use of energy is known as<\/p>\n

[amp_mcq option1=”active transport” option2=”passive transport” option3=”water potential gradient” option4=”solute loss” correct=”option1″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC Geoscientist – 2023<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe movement of a substance against a diffusion gradient with the use of energy is known as active transport.
\n<\/section>\n
\nTransport across biological membranes can be passive or active. Passive transport mechanisms (like diffusion and facilitated diffusion) move substances down their concentration or electrochemical gradient and do not require metabolic energy. Active transport moves substances against their gradient, requiring the cell to expend energy, usually in the form of ATP.
\n<\/section>\n
\nDiffusion is the movement of substances from an area of high concentration to an area of low concentration. A diffusion gradient exists when there is a difference in concentration of a substance between two areas. Moving a substance from a low concentration area to a high concentration area, or against the natural flow of diffusion, requires work, which is powered by energy. This is the defining characteristic of active transport.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

The movement of a substance against a diffusion gradient with the use of energy is known as [amp_mcq option1=”active transport” option2=”passive transport” option3=”water potential gradient” option4=”solute loss” correct=”option1″] This question was previously asked in UPSC Geoscientist – 2023 Download PDFAttempt Online The movement of a substance against a diffusion gradient with the use of energy … <\/p>\n

Detailed SolutionThe movement of a substance against a diffusion gradient with the use<\/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":[1091],"tags":[1105,1117,1152],"class_list":["post-87226","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1105","tag-biology","tag-cell","no-featured-image-padding"],"yoast_head":"\nThe movement of a substance against a diffusion gradient with the use<\/title>\n<meta name=\"description\" content=\"The movement of a substance against a diffusion gradient with the use of energy is known as active transport. Transport across biological membranes can be passive or active. Passive transport mechanisms (like diffusion and facilitated diffusion) move substances down their concentration or electrochemical gradient and do not require metabolic energy. 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Passive transport mechanisms (like diffusion and facilitated diffusion) move substances down their concentration or electrochemical gradient and do not require metabolic energy. 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