The feature of carbon important for producing a wide diversity of organic molecules is

The molecule below that is polar and acts like a base is

Changing a single amino acid in a protein consisting of 325 amino acids would

The substance listed below that would be most rich in mono-unsaturated fats is

The LEAST hydrophilic substance is

The functional group that forms covalent bonds between R groups within a polypeptide and that stabilizes tertiary structure is

The addition of a strong acid like HCl to an aqueous solution would result in

Which of the following could represent the correct sequence of levels in life's hierarchy, proceeding downward from an individual organism?

The unique characteristics of ribosomes include

Which type of cell would have the hardest time exporting waste?

1 mole = 1000 millimoles (mmol); 1millimole = 1000 micromoles (µmol). If a solution contains 38231 µmol, what is that amount in mmol?

Nitrogen has 7 electrons and can form a maximum of ________ bonds with other elements.

A disaccharide, such as maltose, consists of two molecules of glucose linked by what type of bond?

When the body's blood glucose level rises, the pancreas secretes insulin and, as a result, the blood glucose level declines. When the blood sugar levels drop back to normal, insulin secretion stops. Alternatively, when the blood glucose level is low, the pancreas secretes glucagon and, as a result, the blood glucose level rises. When levels return to normal, glucagon secretion stops. Such regulation of the blood glucose level is the result of what kind of regulation mechanism?

Which bonds are created during the formation of the secondary structure of a protein?

Which level of organization is common to all life forms?

A scientist isolates a single-celled organism from the bottom of a sulfur hot spring. When examined under the microscope, it is clear that the cell is very small and contains no nucleus. Based on this evidence alone, in what domain of life is this organism?

The smallest functional units of matter that cannot be further broken down by ordinary chemical or physical means are

A dehydration reaction

Sulfur 35 ( 35S) is an isotope of 32S. These elements differ in their number of neutrons.

Systems biology is mainly an attempt to

The cell wall is a common feature to

The molarity of a solution is

Acetic acid gives vinegar its sour taste. The functional group of this acid is

All organic molecules contain

The nucleus is to eukaryotes as the ________ is to prokaryotes.

When placed in an aqueous solution, amphipathic molecules will orient themselves with

The function of eukaryotes membranes include

Cell theory or cell doctrine is based on some basic principles. Choose the description that best addresses these principles.

You have two beakers. One contains pure water, the other contains pure methanol (wood alcohol). The covalent bonds of methanol molecules are non-polar, so there are no hydrogen bonds among methanol molecules. You pour crystals of table salt (NaCl) into beaker one and beaker two. What will happen?

Whether the external temperature is hot or cold, birds maintain an internal body temperature of approximately 40°C. This is an example of.

Which of the following statements is correct about cis-trans isomers?

Proteins are largely responsible for the traits of living organisms, while ________ provides the blueprint for the organization, development, and function of living things.

If orange juice has a pH of 4, then it can be described as

If lithium has an atomic number of 3 then it will have one valence electron.

“All living organisms are composed of cells” is an example of what type of scientific statement?

  

Amphipathic molecules

Two molecules with identical molecular formulas but different structures are called

You are given two nucleic acids; one RNA and the other DNA. What are the main features to determine which is the DNA?

Tritiated hydrogen ( 3H) differs from hydrogen ( 1H) in that

You are injecting a dye into a eukaryotic cell to detect a specific functional enzyme in the cytosol. Where would you need to inject the dye?

The first, innermost energy shell of an atom

Which of the following hydrocarbons has a double bond in its carbon skeleton?

What structure best represents a polymer?

Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.