Quiz

The string of nucleotides, ATGCGATATA could be found in ______.

A.

RNA

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B.

DNA

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C.

Either RNA or DNA

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D.

Neither DNA or RNA

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E.

A protein

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In deoxyribonucleic acid (DNA) the complementary nucleotide base pairings that form the rungs of the DNA double helix are such that adenine only pairs with thymine and cytosine only pairs with _________.

A.

Cytosine

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B.

Uracil

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C.

Guanine

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D.

Nitrogen

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E.

Adenine

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Which of the following is FALSE about the structure/function of DNA and RNA?

A.

In DNA molecules, adenine pairs with thymine and guanine pairs with cytosine.

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B.

Both DNA and RNA are polymers composed of monomer subunits.

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C.

Both DNA and RNA are information bearing molecules.

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D.

Both DNA and RNA have double helix structures containing nitrogenous bases, sugar, and phosphate.

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E.

RNA is the working form of the information stored in DNA

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Which of the following statements is NOT true about nucleic acids?

A.

The monomers of nucleic acids are steroids.

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B.

All nucleated cells in the human body have the same DNA regardless of their function.

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C.

DNA stores genetic information and acts as a blueprint for cells.

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D.

RNA and DNA are the two main types of nucleic acids.

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E.

DNA is located principally in the nucleus of cells.

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DNA is _________.

A.

Composed of two long strings of nucleotides twisted around each other

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B.

Comprised of the nucleotides A, C, G and U

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C.

Located in the cytosol of cells

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D.

The structural material to which cells adhere

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E.

Different in each of our cells

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The lipids that form cellular membranes have ______ ends that face the water-filled environment inside the cells and the watery environment outside the cell; and they have _____ ends that face each other on the inside of the bilayer.

A.

Hydrophilic, hydrophobic

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B.

Hydrophobic, hydrophilic

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C.

Hydroponic, hydrophilic

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D.

Cholesterol, glycerol

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E.

Fatty, hydrophilic

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Which of the following is not a function of lipids?

A.

Forming biological membranes

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B.

Precursor to the sex hormones

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C.

Regulating cellular activity

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D.

Enzymatic activities

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E.

Energy storage

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A glycoprotein is a ______.

A.

Lipid with a carbohydrate molecule(s) attached to it.

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B.

Sugar that aids in a cell's digestive component.

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C.

Protein that has been modified by the addition of one or more carbohydrates.

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D.

Protein that is important in the development and/or detection of cancer

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E.

Both C and D

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Which of the following is incorrect regarding glycoproteins?

A.

They may be embedded within a membrane

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B.

They are utilized in the detection of cancer

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C.

A protein to which a carbohydrate is attached.

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D.

A protein to which a lipid is attached.

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E.

Common on the surface of cells.

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Which of the following is NOT correct about RNA?

A.

RNA is copied from DNA in the nucleus then shipped to the cytosol

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B.

RNA is the working form of information stored in the DNA

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C.

RNA is double stranded

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D.

RNA is a polymer of nucleotides that carries the information present in genes

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E.

In cancer, the production or regulation of RNA's doesn't occur properly

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Which of the following is not true regarding nucleic acids?

A.

There are at least two forms of nucleic acids.

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B.

Nucleotides are the monomers of nucleic Acids.

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C.

Adenine pairs with Thymine, Guanine with Cytosine.

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D.

Nucleic acids are always double-stranded.

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E.

Can be found both inside and outside the nucleus.

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Enzymes are composed primarily of:

A.

Carbohydrates

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B.

Lipids

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C.

DNA

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D.

Proteins

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E.

RNA

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The functions of proteins include all of the following EXCEPT:

A.

Cell to cell communication

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B.

Transportation of resources into/out of cells

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C.

Catalysis of important chemical reactions

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D.

Information bearing molecules (similar to DNA and RNA)

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E.

Hormones

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Which of the following is not a function of carbohydrates?

A.

Energy storage

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B.

Structure of plants

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C.

Cell Communication

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D.

Immune system function

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E.

Protein degradation

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Which of the following is a polymer of glucose used primarily in animals as a storage form of energy?

A.

Starch

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B.

Cellulose

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C.

Glycogen

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D.

Lipid

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E.

Chloroplast

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Which of the following is true about starch?

A.

Starch is a lipid polymer.

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B.

Starch is a sugar monomer.

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C.

Starch is a form of stored energy found in plant products.

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D.

Starch is a form of stored energy found in plant and animal products.

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E.

A and C.

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Carbohydrates are comprised of ______.

A.

Carbon, hydrogen, and oxygen

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B.

Carbon, hydrogen, and nitrogen

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C.

Phosphorous, hydrogen, and oxygen

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D.

Carbon, nitrogen, and oxygen

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E.

Nitrogen, phosphorous, and oxygen

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Examples of carbohydrates include ______.

A.

Hydrogen and oxygen

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B.

Isotopes and isomers

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C.

Fatty acids and proteins

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D.

Lactose and sucrose

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E.

Chloride and peroxide

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Biological Building Blocks