Chapter 11
Bio-inorganic Chemistry
NEB Class 11 past exam questions
Past questions and answers
1 question set from this chapter. Most repeated first.
- NEB Class 11 Chemistry Model Question · 1 mark
Sodium-glucose pump is an example of
(a) Primary active transport protein
(b) Secondary active transport protein
(c) Primary passive transport protein
(d) Secondary passive transport protein
Answer
(b) Secondary active transport protein
The sodium-glucose pump (SGLT) is a symporter: it does not use ATP directly. Instead, it uses the energy stored in the Na⁺ concentration gradient that was built up by the Na⁺–K⁺ ATPase pump. Since the driving force comes indirectly from ATP, it is secondary active transport.
Answer checked by Claude Sonnet · Oct 21, 2026
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Questions from NEB Class 11 Chemistry Model Question (New Course, Code 3011) (NEB/CDC model paper, Grade 11, 2077/2078), Practice questions written for this site (Written from the official syllabus and specification grid where no past papers cover a chapter), NEB Grade XI 2074 (2017) Chemistry 112 'A' (old course) (Old HSEB/NEB Grade XI regular board exam, 2074 (2017). Old-course paper; only questions fitting the current outline taken.), NEB Grade XI 2074 (2018) Chemistry 112 Upgrading (Supplementary) (Old-course NEB Grade XI upgrading/supplementary exam, 2074 (2018).), NEB Grade XI 2075 (2018) Chemistry 112 'B' (old course) (Old-course NEB Grade XI board exam, 2075 (2018), set B.) and NEB Grade XI 2076 (2019) Chemistry 112 'B' (old course) (Old-course NEB Grade XI board exam, 2076 (2019), set B.). Answers are written for this site; check them against your class notes.
Chapter titles and hours from the official syllabus ↗