IB Biology Final Exam S2

Which category of organisms is correctly described in this table?

• A

• B

• C

• D

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NGSS.HS-LS2-5

What limits the length of a food chain in an ecosystem?

• The size of the individual organisms

• Competition between organisms

• The loss of energy between trophic levels

• Natural selection

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NGSS.MS-LS2-3

What are characteristics of species?

• I and II

• I and III

• II and III

• I, II and III

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NGSS.HS-LS4-2

NGSS.HS-LS4-4

What is lost between trophic levels and cannot be recycled?

• Heat

• Nitrogen

• Carbon compounds

• Biomass

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NGSS.HS-LS2-4

NGSS.HS-LS2-6

This molecule is a

• Carbohydrate

• Lipid

• Protein

• Nucleic acid

• Cholesterol

Which statement is true about amino acids?

• All amino acids have amine groups.

• Some amino acids contain phosphorus.

• No amino acid contains sulfur.

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NGSS.HS-LS1-1

Which statement is true about catabolism?

• Catabolism occurs during protein synthesis.

• Catabolic reactions release energy that can be captured in the form of ATP

• An example of a catabolic process is DNA replication.

• Catabolism is the synthesis of complex molecules from simpler molecules through hydrolysis.

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NGSS.HS-LS2-5

Metabolism is best defined as:

• A chemical reaction.

• The web of all enzyme-catalyzed reactions in a cell or organism.

• The web of all chemical reactions in a cell or organism.

• The web of all endergonic reactions in a cell or organism.

Tags

NGSS.HS-LS2-5

Which of the following can be present in a molecule of DNA?

• Ribose

• Phosphate

• Thymine

• Guanine

• Uracil

What type of bonds are present between complementary nitrogenous bases?

• Covalent bonds

• Ionic bonds

• Hydrogen bonds

• Peptide bonds