Which property of water allows it to move upward from the roots of a tree to its leaves?

There are several emergent properties of water that contribute its powerful affect on living organisms. These emergent properties are mostly due to:

Which type of chemical bond involves the transfer of electrons from one atom to another, resulting in oppositely charged ions that are attracted to each other?

DNA and RNA store genetic information in the sequences of their nucleotides. Which of the following is a NOT a difference between the two polymers.

Use the diagram below to answer questions 5–6.

Which part of the diagram is showing a monomer?

Which part of the diagram shows a dehydration synthesis reaction?

There are four levels of protein structure. Which level includes the coils of the α helix and the folds of the β pleated sheets?

Which of the following statements correctly describes the difference between saturated and unsaturated fats?

What determines the function of a protein?

Insulin is a protein hormone that plays a role in regulating blood glucose levels. The quaternary structure of insulin consists of two polypeptide chains: an alpha chain with 21 amino acids and a beta chain with 30 amino acids. During the synthesis of these two polypeptide chains from individual amino acids, how many molecules of water are produced in total?

Water plays a pivotal role in thermoregulation or maintenance of a stable temperature both in organisms as well as the planet earth. Which of the following properties of water best explains this phenomenon?

Nitrogen rich fertilizer is routinely applied to crops each growing season. Which of the following macromolecules directly require the element nitrogen?

Phospholipids are composed of a phosphate group and two fatty acids. The saturation of fatty acids as well as their length affect the fluidity of plasma membranes. Which bonds or intermolecular forces are responsible for the length of fatty acids decreasing the fluidity of the membrane.

Which of the following descriptions accurately describe the role of R-groups in the folding of polypeptides?

The viscosity or fluidity of the plasma membrane is affected by the intermolecular forces that occur among the fatty acids that make up the phospholipids. The relative strength of these intermolecular forces can be determined by measuring their melting points. Higher number of intermolecular forces result in a higher melting point. Which of the following lipids will have the lowest melting point.

Lipids have many important roles in animals. Which of the following does NOT match the correct lipid with its role?

Water has many emergent properties that are important to life as a result of intermolecular forces that occur between water molecules. These forces are the result of what type of bond between the hydrogens and oxygen in a molecule of water?

Macromolecules are synthesized by the bonding of subunits called monomers. Which of the following describes the structure of the monomer for DNA and RNA.

Nucleic acids have a linear sequence of nucleotides that have ends defined by which of the following ways?

A research team is studying a newly discovered protein that possesses three domains (three different polypeptides)and they want to understand its three-dimensional structure and function. They have determined the sequence of amino acids of one domain as well the three-dimensional structure of that domain. What two levels of the protein’s structure have they determined so far?