/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q12E (a) The recommended daily allowa... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 6: Q12E (page 1435)

(a) The recommended daily allowance (RDA) of the trace metal magnesium is 410 mg/day for males. Express this quantity in mg/day. (b) For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. How many grams per day should a 75-kg adult receive? (c) A typical multivitamin tablet can contain 2.0 mg of vitamin B2 (riboflavin), and the RDA is 0.0030 g/day. How many such tablets should a person take each day to get the proper amount of this vitamin, if he gets none from other sources? (d) The RDA for the trace element selenium is 0.000070 g/day. Express this dose in mg/day.

Short Answer

Expert verified

Steps are given below

Step by step solution

01

(Calculation daily trace)

410mg/day

=410脳1000渭驳/诲补测=410000渭驳/诲补测

02

(consumption by 75Kg weighed adult)

(b)

1000mg=1 gram

So, hypothetically if someone weighed 1Kg they would need 12mg of Lysine daily.

That means , a 75 Kg adult would need 900mg lysine, which is0.900grams.

03

Step3(calculation of number of tablets)

( c)

No of tablets =0.003/0.002=1.5 tablets

Therefore, he should take 2 tablets.

04

Step4(conversion )

0.000070g/day=0.070mg/day(conversion g to mg )

05

Step5(Conclusion)

After the calculation as per given problem a 75 Kg weighed adult can consume 900mg or 0.900grams of Lysine.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

For a particle in a finite potential well, is it correct to say that each bound state of definite energy is also a state of definite wavelength? Is it a state of definite momentum? Explain.

Why aren鈥檛 the masses of all nuclei integer multiples of the mass of a single nucleon?

Qualitatively, how would you expect the probability for a particle to tunnel through a potential barrier to depend on the height of the barrier? Explain.

When a monochromatic light source moves toward an observer, its wavelength appears to be shorter than the value measured when the source is at rest. Does this contradict the hypothesis that the speed of light is the same for all observers? Explain.

A photon of frequency fundergoes Compton scattering from an electron at rest and scatters through an angle 蠒 . The frequency of the scattered photon is f'. How is f' related to f? Does your answer depend on 蠒? Explain.
See all solutions

Recommended explanations on Physics Textbooks

Work Energy and Power

Read Explanation

Oscillations

Read Explanation

Thermodynamics

Read Explanation

Particle Model of Matter

Read Explanation

Quantum Physics

Read Explanation

Astrophysics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.