Building Blocks of Life Answers
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The chart shows the percentage of different elements in the human body.
A
nitrogenB
hydrogenC
carbonD
oxygen2
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carbohydrateslipidsproteinsnucleic acids
A
carbohydratesB
lipidsC
proteinsD
nucleic acids3
Which is the smallest possible particle of an element?
A
moleculeB
atomC
compoundD
matter4
Which elements are common to all organisms? Check all that apply.sodiumoxygensulfurhydrogenironphosphorus
A
sodiumB
oxygenC
sulfurD
hydrogenE
ironF
phosphorus5
Which example is most likely an inorganic compound?
A
methane, which is made of carbon and hydrogenB
glucose, which is a sugar made by plantsC
sodium chloride, which is a saltD
human DNA, which is a molecule in cells6
The Venn diagram compares organic and inorganic compounds.
A
Made from phosphorus and oxygenB
Not made from living thingsC
Made from every element except carbonD
Not made from elements7
Which element is the basis for all living things and can combine with other elements in many ways?
A
phosphorusB
carbonC
oxygenD
sulfur8
Which kind of molecule is used by organisms to store and transmit genetic material?
A
nucleic acidB
carbohydrateC
proteinD
lipid9
Aluminum is an element. Which best describes what makes up a sample of aluminum?
A
one kind of atomB
two different kinds of atomsC
all carbon-based atomsD
a carbon atom and non-carbon atoms10
Which two elements make up water?
A
oxygen and phosphorusB
oxygen and hydrogenC
hydrogen and sulfurD
hydrogen and phosphorusDid you find these answers helpful?
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