FREE BIOLOGY AND STUDY GAMES ABOUT THE

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FREE BIOLOGY AND STUDY GAMES ABOUT THE

BIOMOLECULES EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -45 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: two examples of secondary structure in proteins are the? and the ?

Answer:

pleated sheet and a helix

Question 2: What does DNA stand for ( spell correctly)

Answer:

Deoxyribonucleic acid Question 3: which polysaccharide is found in the seeds or roots of plants and allows the glucose to bind together for storage . The energy is stored and then the material is broken down to glucose for energy..

Answer:

starch

Question 4: what are the building blocks or monomers of proteins

Answer:

amino acids ( there are 20 kinds of amino acids...they have a section called an "R" group that makes each unique..

Question 5: How do monosaccharides combine to form other carbohydrates

Answer:

two monosaccharides combine to form a disaccharide many monosaccharides combine to form polysaccharides

Question 6: Name 4 polysaccharides

Answer:

cellulose, starch, glycogen and chitin Question 7: What element is the star of organic chemistry. Life on earth is ? based it makes up the backbone of the biomolecules ... it shares electrons allowing atoms of this element to bond to each other to make chain, branched, or ringed molecules

Answer:

Carbon Question 8: which polysaccharide is found in an animal's liver or muscle and allows glucose to be stored... This will break down to glucose to be used as energy

Answer:

glycogen

Question 9: Name two polysaccharides found in plants

Answer:

starch and cellulose

Question 10: Which type of fatty acid is healthier

Answer:

the unsaturated fatty acids are healthier Question 11: which monosaccharide is made during photosynthesis and is a very important energy source for organisms and it can be linked to form starches, cellulose, or glycogen..during cellular respiration this is converted to ATP

Answer:

glucose

Question 12: what is happening in the quaternary structure of proteins

Answer:

several polypeptide chains ( chains of amino acids) are combining... for example hemoglobin has 4 polypeptide chains combined

Question 13: which organic molecules only have C, H, and O... usually

Answer:

carbohydrates and lipids

Question 14: what are the building blocks or monomers of nucleic acids

Answer:

nucleotides... made of 3 subunits a sugar, a phosphate , group and a nitrogen base

Question 15: Major function of lipids

Answer:

LONG TERM STORAGE OF ENERGY... important for hibernation and if you were doing an endurance activity and used up the other energy sources

Question 16: What is a saturated fatty acid

Answer:

the saturated fatty acid has single chemical bonds and has all the hydrogen that is possible... they are usually solids at room temperature such as steak fat, butter, coconut oil Question 17: What biomolecule has four levels of structure ... primary, secondary, tertiary, and quaternary

Answer:

proteins

Question 18: Examples of lipids are ( name 3)

Answer:

FATS, WAXES, AND OILS

Question 19: what is a triglyceride

Answer:

a triglyceride is a type of lipid found in food and the human body. In a human it is present in blood plasma along with cholesterol...it is made of 3 fatty acids and glycerol and may be saturated or unsaturated

Question 20: Give an example of a disaccharide that is used commonly in someone's kitchen

Answer:

table sugar or sucrose Question 21: most polymers or macromolecules are made of repeating units called ?...(. lipids are a little unusual because of their variation in these smaller units)

Answer:

MONOMERS

Question 22: What organic molecule is important for making up part of the cell membrane, insulation, padding, and acts as protective coatings

Answer:

lipids Question 23: polysaccharide that forms the cell wall of plants for support... it is structural rather than for energy ( can't be digested by humans... is fiber in our diets)

Answer:

cellulose

Question 24: In proteins , what makes up the primary structure

Answer:

the number and sequence or order of amino acids in the peptide chain or polypeptide chain...protein

Question 25: what is responsible for the secondary structure in a protein

Answer:

hydrogen bonds form between different parts of the amino acids which causes unique 3D shapes

Question 26: what is true about the tertiary structure of proteins

Answer:

the R groups of the amino acids are having various chemical interactions and are forced to fold more and more Question 27: which polysaccharide is found in the cell wall of fungi and the exoskeletons of arthropods ( insects , crustaceans, arachids)... as structural components not energy

Answer:

chitin