Which of the following organic molecules contain both an amine and carboxyl group?

A. Lipids

B. Proteins

C. Chitin

D. Cellulose

Answer Explanation:

An amine group is a nitrogen atom bonded to three hydrogen atoms, and a carboxyl group is a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group. These groups are important for the formation of amino acids, which are the building blocks of proteins.

Therefore, the Correct Answer is B.

Q #1: Which of the following properties of water explains its solvent abilities for certain substances?

A. Polarity of water molecules

B. High specific heat

C. High surface tension

D. Kinetic energy of liquid water molecules

Answer Explanation

Water is a versatile solvent because it can dissolve many different kinds of substances. The reason for this is the polarity of water molecules, which means that they have a slight positive charge on one end and a slight negative charge on the other. This allows water molecules to attract and surround ions or polar molecules of other substances, forming hydration shells that separate them from each other.
Q #2: Which of the following can lead to a tsunami?

A. Lightning strikes

B. Flooding

C. Earthquakes

D. Sunspot activity

Answer Explanation

A tsunami is a series of large waves that are caused by the displacement of a large volume of water in the ocean or a large lake. The most common cause of tsunamis is earthquakes, which can generate seismic waves that travel through the water and create sudden changes in water level.
Q #3: In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously?

A. Triple point

B. Critical temperature

C. Absolute zero

D. Critical point

Answer Explanation

A phase diagram is a graphical representation of the physical states of a substance under different conditions of temperature and pressure. A phase diagram usually has pressure on the y-axis and temperature on the x-axis. As we move along the curves of the phase diagram, we can see how the state of the substance changes from solid to liquid to gas, or vice versa.

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Which of the following organic molecules contain both an amine and carboxyl group?

More Questions on TEAS 7 Science

Q #1: Which of the following properties of water explains its solvent abilities for certain substances?

Answer Explanation

Q #2: Which of the following can lead to a tsunami?

Answer Explanation

Q #3: In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously?

Answer Explanation

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