Biochemistry Essentials Quiz Chapter 2

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Test key concepts in biochemistry basics.

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Matthew Belleza

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Biochemistry Essentials Quiz Chapter 2


Biochemistry Essentials Quiz Chapter 2Version en ligne Test key concepts in biochemistry basics. par Matthew Belleza 1 What is the main function of carbohydrates in the body? a Genetic coding b Energy storage only in fat c Primary energy source for cells d Hormone production only 2 Which term describes simple sugar units? a Oligosaccharides b Disaccharides c Monosaccharides d Polysaccharides 3 What is a key disaccharide produced from two monosaccharides? a Glucose b Sucrose c Glycogen d Cellulose 4 Glycogen is primarily stored in which organs? a Liver and muscles b Heart and lungs c Kidneys and brain d Bone marrow and spleen 5 What type of bond links monosaccharides in polysaccharides? a Dehydration synthesis b Hydrolysis c Ionic bonds d Hydrogen bonding 6 Which polysaccharide is a storage form of glucose in animals? a Glycogen b Starch c Cellulose d Chitin 7 Which lipid class is insoluble in water? a Phospholipids b Prostaglandins c Triglycerides d Glycolipids 8 What are the building blocks of lipids called? a Nucleotides b Amino acids c Monosaccharides d Fatty acids 9 Phospholipids have a hydrophilic head and a hydrophobic what? a Pole b Tail c Bond d Crystal 10 Which lipid class provides steroid hormones? a Triglycerides b Steroids c Phospholipids d Waxes 11 What molecule is the energy currency of the cell? a ATP b ADP c NADH d FAD 12 Which lipid component forms cell membranes? a Cholesterol b Glycolipids c Triglycerides d Phospholipids 13 What type of bond joins amino acids in proteins? a Glycosidic bond b Hydrogen bond c Ionic bond d Peptide bond 14 Which level of protein structure involves the overall 3D shape? a Primary structure b Secondary structure c Quaternary structure d Tertiary structure 15 What role do enzymes play in reactions? a Change products b Consume substrates c Increase activation energy d Lower activation energy 16 Nucleic acids store genetic information in which form? a Protein sequence b DNA sequence c Carbohydrate pattern d Lipid code 17 Which nucleotide sugar is found in DNA? a Glucose b Ribose c Deoxyribose d Fructose 18 Which base pairs with adenine in DNA? a Thymine b Uracil c Guanine d Cytosine 19 Which RNA type carries genetic information to ribosomes? a mRNA b rRNA c miRNA d tRNA 20 What molecule acts as a carrier of energy in metabolism? a ADP b ATP c NAD+ d FAD 21 Which protein structure can be denatured by heat or pH change? a Amino acid identity b Protein folds (structure) c Primary sequence d Gene sequence 22 Which chemical bond is most common in organic molecules? a Hydrogen bonds b Covalent bonds c Metallic bonds d Ionic bonds 23 What does hydrolysis do to polymers? a Breaks them into monomers b Stores energy c Forms polymers d Creates bonds 24 Which lipid is the main component of membranes? a Triglycerides b Cholesterol c Phospholipids d Waxes 25 Which organic molecule provides quick energy in cells? a Glucose b Fatty acids c Nucleotides d Amino acids 26 Which type of RNA is a structural component of ribosomes? a rRNA b siRNA c mRNA d tRNA 27 Which amino acid property varies among proteins? a R group (side chain) b Phosphate group c Hydrogen count d Backbone 28 Which macromolecule class includes ATP itself? a Nucleic acids b Proteins c Carbohydrates d Lipids 29 Which bond type contributes to protein secondary structure? a Ionic bonds b Disulfide bonds c Peptide bonds d Hydrogen bonds 30 Which component is common to all nucleotides? a Phosphate group b Hydroxl group c Amino group d R group 31 Which base is found only in RNA? a Uracil b Cytosine c Adenine d Thymine 32 Which macromolecule regulates most metabolic reactions? a Lipids b Carbohydrates c Proteins (enzymes) d Nucleic acids 33 Which lipid helps with insulation and energy storage? a Cholesterol b Phospholipids c Triglycerides d Steroids 34 Which carbohydrate is indigestible fiber for humans? a Glycogen b Cellulose c Chitin d Starch 35 What kind of reaction builds polymers from monomers? a Redox reaction b Hydration c Dehydration synthesis d Hydrolysis 36 Which molecule stores chemical energy in bonds? a Thermal energy b Kinetic energy c Potential energy only d Chemical energy 37 Which macromolecule provides structural hormones and enzymes? a Carbohydrates b Proteins c Nucleic acids d Lipids 38 What component forms the backbone of DNA strands? a Sugar-phosphate backbone b Nitrogenous base pair c Amino acid chain d Lipid bilayer 39 Which organic molecule is primarily used for fast energy in glycolysis? a Glucose b Amino acids c Fatty acids d Nucleotides 40 What is the main function of RNA besides carrying genetic info? a Carrying oxygen b Storing fat c Catalyzing all reactions d Mediating protein synthesis 41 Which biomolecule class includes hormones like insulin? a Proteins b Lipids c Nucleic acids d Carbohydrates 42 Which lipid is critical for steroid hormone production? a Eicosanoid b Cholesterol c Phospholipid d Triglyceride Feedback 1 Carbohydrates primarily provide quick energy via ATP. 2 Monosaccharides are the basic building blocks of carbs. 3 Sucrose forms from glucose and fructose via dehydration synthesis. 4 Glycogen serves as a rapid glucose reserve in liver/muscles. 5 Dehydration synthesis forms glycosidic bonds in polysaccharides. 6 Glycogen is the animal storage carbohydrate. 7 Triglycerides are nonpolar and hydrophobic. 8 Fatty acids are the monomers for triglycerides. 9 Phospholipid tails are nonpolar and avoid water. 10 Steroids include cholesterol-derived hormones. 11 ATP stores and releases cellular energy via hydrolysis. 12 Phospholipids create the bilayer structure of membranes. 13 Peptide bonds link amino acids in polypeptides. 14 Tertiary structure is the complete 3D folding of a single polypeptide. 15 Enzymes speed reactions by lowering the energy barrier. 16 DNA encodes hereditary information in its sequence. 17 DNA uses deoxyribose; RNA uses ribose. 18 A pairs with T via two hydrogen bonds in DNA. 19 mRNA provides the template for protein synthesis. 20 ATP stores energy and releases it when hydrolyzed. 21 Denaturation disrupts higher-order structures, impairing function. 22 Covalent bonds share electron pairs, forming stable molecules. 23 Hydrolysis cleaves polymer bonds with water. 24 Phospholipids form lipid bilayers in membranes. 25 Glucose is a key immediate energy source in glycolysis. 26 rRNA forms the core of ribosome structure and function. 27 R group defines amino acid properties and protein behavior. 28 ATP is a nucleotide derivative, linking to nucleic acid chemistry. 29 Hydrogen bonds stabilize alpha helices and beta sheets. 30 Nucleotides contain a phosphate, sugar, and base. 31 RNA uses uracil instead of thymine. 32 Enzymes accelerate specific chemical reactions. 33 Triglycerides store energy and insulate tissues. 34 Cellulose passes as dietary fiber in humans. 35 Dehydration synthesis forms bonds while releasing water. 36 Chemical energy is stored in molecular bonds and released during reactions. 37 Proteins form enzymes, hormones, and structural components. 38 DNA has a sugar-phosphate backbone with paired bases. 39 Glucose is the key substrate in glycolysis for quick energy. 40 mRNA, tRNA, and rRNA coordinate protein synthesis. 41 Insulin is a peptide hormone, a protein. 42 Cholesterol is a precursor for steroid hormones.

Biochemistry Essentials Quiz Chapter 2

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Créé par

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Biochemistry Essentials Quiz Chapter 2Version en ligne

par Matthew Belleza

What is the main function of carbohydrates in the body?

Which term describes simple sugar units?

What is a key disaccharide produced from two monosaccharides?

Glycogen is primarily stored in which organs?

What type of bond links monosaccharides in polysaccharides?

Which polysaccharide is a storage form of glucose in animals?

Which lipid class is insoluble in water?

What are the building blocks of lipids called?

Phospholipids have a hydrophilic head and a hydrophobic what?

Which lipid class provides steroid hormones?

What molecule is the energy currency of the cell?

Which lipid component forms cell membranes?

What type of bond joins amino acids in proteins?

Which level of protein structure involves the overall 3D shape?

What role do enzymes play in reactions?

Nucleic acids store genetic information in which form?

Which nucleotide sugar is found in DNA?

Which base pairs with adenine in DNA?

Which RNA type carries genetic information to ribosomes?

What molecule acts as a carrier of energy in metabolism?

Which protein structure can be denatured by heat or pH change?

Which chemical bond is most common in organic molecules?

What does hydrolysis do to polymers?

Which lipid is the main component of membranes?

Which organic molecule provides quick energy in cells?

Which type of RNA is a structural component of ribosomes?

Which amino acid property varies among proteins?

Which macromolecule class includes ATP itself?

Which bond type contributes to protein secondary structure?

Which component is common to all nucleotides?

Which base is found only in RNA?

Which macromolecule regulates most metabolic reactions?

Which lipid helps with insulation and energy storage?

Which carbohydrate is indigestible fiber for humans?

What kind of reaction builds polymers from monomers?

Which molecule stores chemical energy in bonds?

Which macromolecule provides structural hormones and enzymes?

What component forms the backbone of DNA strands?

Which organic molecule is primarily used for fast energy in glycolysis?

What is the main function of RNA besides carrying genetic info?

Which biomolecule class includes hormones like insulin?

Which lipid is critical for steroid hormone production?