ATP is the energy unit of cells. Specifically, what biological molecule is it?
Chitin is most similar to __________.
Cigarette smoke is said to be carcinogenic because it causes mutations to form in the DNA. If DNA has a mutation, what other molecules will also become mutated?
RNA and proteins
sugar molecules and proteins
triglycerides and RNA
phospholipids and proteins
Carbon tends to form large molecules because of its capability to form ______ bonds with several other atoms.
Consumption of what type of fats helps you obtain a healthy ratio of LDL to HDL?
polyunsaturated fats with omega-3s
DNA is to nucleic acid as wax is to__________.
Four is to nucleic acids as ___________ is to proteins.
HDL is to LDL as testosterone is to _______.
Receptor Protein - Protein that binds to a specific single molecule, enabling the cell to respond to the signal molecule. i. e. - The muscles of a person exercising can not contract without receptor proteins and signal molecules that tell the muscles when to contract and when to relax. Second Messenger - Signal molecule produced in response to the binding of a chemical signal. Acts as a signal ...
If a cell is unable to make RNA it will also be unable to make ___________.
If your diet is deficient in glucose, it will be hard for you to make ______.
1If you isolate a polymer of nucleotides, the polymer is most likely ___________.
If you are able to isolate a molecule with a phosphate group, the molecule is most likely a(n) ____________.
If you isolate a fatty acid with one double bond, you know the fatty acid is a ________.
omega-3 fatty acid
Many plants store their excess carbohydrates in the form of a polysaccharide called ______.
Nucleotides are used for several functions in cells. Which of the following is NOT a correct function for a nucleotide?
building plant cell walls
serving as a chemical carrier of energy
building ribonucleic acid (RNA)
building deoxyribonucleic acid (DNA)
Nucleotides are to DNA as ________ are to _________.
amino acids; proteins
carbon; fatty acids
fatty acids; carbohydrates
saturated fats; lipids
Nucleotides share structural similarity to _______.
Nucleotide is to nucleic acid as amino acid is to __________.
Proteins differ from one another because ______.
of the host organism
the sequence of amino acids in the polypeptide chain differs from protein to protein
the number of nucleotides found in each protein varies from molecule to molecule
Two Animal Products vs. Two Protein Amino Acid Supplements The Protein and Amino Acid supplement make claims to build lean muscle mass in conjunction with a healthy diet and exercise (especially weight training). Protein and Amino Acid supplement companies advocate eating 6-8 small healthy meals a day which allows the body to use food more efficiently throughout the day for increased energy and ...
each protein contains its own unique sequence of sugar molecules
the peptide bonds linking amino acids differ from protein to protein
Phospholipids are said to have a dual nature because they are ______.
Selected Answer: part hydrophilic and part hydrophobic
The color of your hair is determined by a _________, which is made based on instructions provided by _________.
nucleic acid; DNA
Which of the following statements about hormones is true?
All hormones are proteins.
Some hormones are proteins and some are steroids.
All steroids are hormones.
All hormones are steroids.
While studying various cells under a microscope, you see one with very fragile membranes. This fragility is probably caused by a deficiency in the production of ______________.
Which functional group is found in amino acids?
both carboxyl and amino
Which of the major types of biological molecules does NOT consist of monomers and polymers?
Which of the following statements about steroids is true?
The steroid estrogen is used by athletes to bulk up.
Cholesterol is not a steroid.
Testosterone is made only by men.
Estrogen is made by both men and women.
Which of the following statements is (are) true about carbon?
It can covalently bond with up to four other atoms.
It is used to create the molecules of life found in cells.
Its outer electron shell is not complete.
Carbon compounds form in many shapes.
All the above statements are correct.
Which of the following statements about HDL and LDL is true?
It is better to have higher levels of LDL than of HDL.
It is best to have equal levels of HDL and LDL.
Your levels of HDL and LDL are really not important enough to monitor.
It is better to have higher levels of HDL than of LDL.
Proteins are complex molecules that react differently to many compounds but are also fragile and cannot withstand high temperatures or strong acids and bases without degrading. The Biuret Method, or biuret test, is used to detect the presence of peptide bonds. It has this name because it reacts positively to the biuret molecule's peptide bonds. Correctly evaluating the number of peptide bonds is a ...
Which of the following is an example of secondary structure of a polypeptide?
the way beta pleated sheets and alpha helixes fold around each other to give the protein its final shape
the amino acid sequence found in a protein
the formation of a beta pleated sheet
the interaction of many polypeptides that gives rise to the final protein
Which of the following statements about proteins is correct?
All enzymes are proteins but not all proteins are enzymes.
All proteins are enzymes, and all enzymes are proteins.
Proteins and enzymes are not related.
All proteins are enzymes, but not all enzymes are proteins.
Which of the following macromolecules function in energy storage?
both fats and carbohydrates
Which of the following is a polymer?
any amino acid
You isolate a cell that cannot bring information from the DNA to the ribosomes. What molecule is probably deficient in this cell?
1 You have a friend who lives on french fries eats almost nothing else. Realizing that french fries are mostly starch, you warn your friend that he might __________ as a result of this diet.
not be able to make glycogen
not be able to make proteins
not be able to make DNA
not be able to make lipids
Your doctor has told you to limit your intake of saturated fats. As an expert in biology you know that to have a healthier diet you should ______.
increase your consumption of polyunsaturated fats
eat mostly fats from plant products
eat only fats from animal products
ignore your consumption of trans fats
You isolate a polymer that contains adenine, guanine, and cytosine. What type of molecule could it be?
either RNA or DNA
You eat a steak for lunch. What is the primary molecule you will be eating?
You eat a very large meal with lots of glucose. What will your body do with the glucose you do not require to meet your energy needs?
Protein Protein Synthesis Protein Synthesis Protein synthesis is the process by which genetic information from the DNA stored in the nucleus is transferred to the ribosomes where it is used to arrange amino acids into proteins. The DNA molecule in the nucleus is unzipped by an enzyme called polymerase. From one of these single strands of a DNA molecule, a mRNA molecule is built. This is ...
polymerize the glucose into glycogen
polymerize the glucose into lipids
excrete it in your urine
polymerized the glucose into proteins
You isolate a new protein composed of four separate protein chains. What level of protein structure would you say this protein achieves?
Your friend Paula tells you that her doctor said she needs more of the principal female steroid. The physician is referring to ___________.
You isolate a cell that cannot make RNA. The cell will therefore not be able to make _______.
You isolate a protein in which a change in the amino acids causes the protein to fold into pleats rather than coil into a helix. What level of protein structure has changed as a result of the amino acid change?
You eat a carrot for lunch. What is the primary biological molecule group you will be eating?