Openstax Anatomy Biochem

ATP is derivative of which of the following molecules?

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Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-5

Which of the following molecules is only associated with ribose?

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Which of the following molecules are classified as purines?

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Which of the following molecules are classified as pyrimidines?

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Categorize the following to distinguish between DNA and RNA:

Groups:

(a) DNA

,

(b) RNA

• single strand

• ribose

• GCAT

• deoxyribose

• can travel outside of the nucleus

• double helix

• GCAU

• located ONLY in the nucleus

The smallest unit of an element that still retains the distinctive behavior of that element is an ________.

• electron

• atom

• elemental particle

• isotope

Tags

NGSS.MS-PS1-1

The characteristic that gives an element its distinctive properties is its number of ________.

• protons

• neutrons

• electrons

• atoms

Which of the following is a molecule, but not a compound?

• H₂O

• ²H

• H₂

• H⁺

Tags

NGSS.MS-PS1-1

Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that ________.

• the inside of the mouth maintains a very high temperature

• chewing stores potential energy

• chewing facilitates synthesis reactions

• saliva contains enzymes

Ty is three years old and as a result of a “stomach bug” has been vomiting for about 24 hours. His blood pH is 7.48. What does this mean?

• Ty’s blood is slightly acidic.

• Ty’s blood is slightly alkaline.

• Ty’s blood is highly acidic.

• Ty’s blood is within the normal range

Tags

NGSS.HS-LS1-3