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You Are On Multi Choice Question Bank SET 157

7851. β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

7852. Vitamin-D deficiency can cause

7853. A deficiency of Vitamin K results in a decreased level of

7854. The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become

7855. Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

7856. What metal ion is specifically bound by vitamin B12?

7857. A fat-soluble vitamin that regulates blood clotting is

7858. Which of these is a vitamin A precursor?

7859. In one iron-metalloflavoprotein, the iron is present as a

7860. Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

7861. Which of these molecules is vitamin H?

7862. The occurrence of metals such as iron or molybdenum in some flavoproteins can

7863. Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

7864. A deficiency of niacin causes

7865. Selenium is an essential component of the enzyme glutathione peroxidase which

7866. Who discovered vitamin C (ascorbic acid)?

7867. The symptoms of retinol excess are

7868. Main function of insulin hormone is to

7869. Ascorbic acid acts as an

7870. A deficiency of thiamin produces the disease known as

7871. Acyl carrier protein (ACP) plays an important role in the biosynthesis of

7872. Al Hilal was a news papers started for propagating nationalism by?

7873. വിമാനാപകടത്തിൽ ‍ മരിച്ച യു.എൻ ‍. സെക്രട്ടറി ജനറൽ ‍ : [Vimaanaapakadatthil ‍ mariccha yu. En ‍. Sekrattari janaral ‍ :]

7874. പച്ചക്കറികളില് ‍ കൂടി ലഭ്യമാകാത്ത ജീവകം ഏത് ? [Pacchakkarikalilu ‍ koodi labhyamaakaattha jeevakam ethu ?]

7875. പരംവീര് ‍ ചക്രയുടെ കീര് ‍ ത്തിമുദ്രയില് ‍ ഏത് ഭരണാധികാരിയുടെ വാളാണ് മുദ്രണം ചെയ്തിരിക്കുന്നത് ? [Paramveeru ‍ chakrayude keeru ‍ tthimudrayilu ‍ ethu bharanaadhikaariyude vaalaanu mudranam cheythirikkunnathu ?]

7876. ................ is not the synonym of ‘impertinent’.

7877. Molecules in which the atoms are held together by __________ bonds have the strongest chemical linkages.

7878. Salt dissolves well in water as water molecules

7879. Buffer solutions

7880. മംഗൾയാൻ വിക്ഷേപണ സമയത്തെ ഭാരം? [Mamgalyaan vikshepana samayatthe bhaaram?]

7881. A Bronsted acid becomes __________ upon losing a proton.

7882. Most of the important functional groups in biological molecules contain

7883. What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7?

7884. Which of the following alcohols would be most soluble in water?

7885. Which of the following acid/base pairs act as natural buffers in living systems?

7886. If protein is made exclusively from nonpolar amino acids, then it will this protein interact with water?

7887. A compound that is capable of forming hydrogen bonds with water

7888. A biological polymer contains alanine, tyrosine, and lysine. Which of the following will be true about this molecule?

7889. The effectiveness or capacity of a buffer solution can be affected by

7890. Who discovered and described the blood groups (ABO) classification?

7891. H2O and CH4 are both examples of

7892. Hydrogen bonds and hydrophilic interactions are types of

7893. A solution with pH = 5 is __________ than a solution with pH = 7.

7894. The lone pair electrons on oxygen in a H20 molecule

7895. Which of the following statements about water is correct?

7896. The strength of an acid depends on

7897. Which of the following statements about covalently bonded molecules is false?

7898. Which of the following character does not apply to water?

7899. The dissociation constant of H2O at 25° C is

7900. Weak acids generally have pKa

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