AP Bio Semester 1 Review

Which of the following describes the PRIMARY level of protein organization?

• Amino acids joined together with covalent bonds via dehydration synthesis

• Alpha helices and beta pleats held by hydrogen bonding

• R-groups interacting with other R-groups via covalent bonds, ionic bonds, hydrogen bonds, or hydrophobic interactions

• A fully folded protein interacting with another folded protein

Which of the following describes the SECONDARY level of protein organization?

• Amino acids joined together with covalent bonds via dehydration synthesis

• Alpha helices and beta pleats held by hydrogen bonding

• R-groups interacting with other R-groups via covalent bonds, ionic bonds, hydrogen bonds, or hydrophobic interactions

• A fully folded protein interacting with another folded protein

Which of the following describes the TERTIARY level of protein organization?

• Amino acids joined together with covalent bonds via dehydration synthesis

• Alpha helices and beta pleats held by hydrogen bonding

• R-groups interacting with other R-groups via covalent bonds, ionic bonds, hydrogen bonds, or hydrophobic interactions

• A fully folded protein interacting with another folded protein

Which of the following levels of protein organization would be disrupted by a mutation deleting one or more amino acids?

• Primary

• Secondary

• Tertiary

• None of these levels

Tags

NGSS.HS-LS3-2

A macromolecule's structure will ultimately determine its function.

• True

• False

Tags

NGSS.HS-LS1-1

Autotrophs gain their carbon content for macromolecules by pulling carbon dioxide from the atmosphere. How do heterotrophs gain carbon?

• From the atmosphere

• From their food

• It is created within them

• Sunlight

Which reaction is depicted here?

• Dehydration Synthesis

• Hydrolysis

• Combustion

• Replacement

Which of the following modes of transport require added energy?

• Active Transport

• Diffusion

• Facilitated Diffusion

• Osmosis

Which of the following modes of transport move substances against the concentration gradient?

• Active Transport

• Diffusion

• Facilitated Diffusion

• Osmosis

Which of the following modes of transport move substances from high to low concentration?

• Active Transport

• Diffusion

• Facilitated Diffusion

• Osmosis

Answer explanation

Even osmosis moves water from where it is highly concentrated (less solute per unit of volume, i.e. hypotonic) to where it is lowly concentrated (more solute per unit of volume, i.e. hypertonic).