AAMC Biological and Biochemical Foundations of Living Systems (BB) Full-Length (FL) 2 Practice Test

These questions are part of the practice quiz. Start practicing

• What type of cells undergo mitosis?
• What is the significance of the 30S subunit in prokaryotic ribosomes?
• Which enzyme is responsible for synthesizing new DNA strands?
• What does the Hardy-Weinberg principle describe?
• In which organelle does the light-dependent reaction of photosynthesis occur?
• What is one of the implications of failing to maintain homeostasis?
• Which interpretations align with the observations concerning the surface amino acids of Protein X?
• Which structure in plant cells contains chlorophyll and is involved in photosynthesis?
• What is the primary role of the nucleus in eukaryotic cells?
• What is a genetic drift?
• What type of cellular transport does not require energy?
• In which cellular compartment do CatB and CatL likely facilitate membrane fusion during VSV-EGP entry?
• Which phase of the cell cycle is characterized by DNA replication?
• Which type of biological molecule is insulin?
• What physiological process is often involved in regulating body temperature?
• How would exposure to dendrotoxin affect somatic motor neuron activity?
• Which type of bonding primarily holds the secondary structure of proteins together?
• What is the role of the Golgi apparatus in the cell?
• What is the primary function of aquaporins in renal physiology?
• What is the primary function of ribosomes?
• Which of the following best describes the function of glucose-6-phosphatase?
• Which component of the cell is primarily responsible for energy production?
• According to the research, how does losartan affect prorenin levels?
• What type of RNA is involved in protein synthesis?
• How many chromosomes are found in a typical human somatic cell?
• Which of the following is true regarding angiotensin II and blood pressure changes in this study?
• What is the primary function of the large intestine?
• What is phenotypic plasticity?
• Which of the following combinations of residues are involved in the binding to prorenin?
• Which process describes the change in structure and function of organisms over generations?
• What is the role of the cytoskeleton in a cell?
• During which process do cells generate ATP in the absence of oxygen?
• In the context of enzyme kinetics, what does kcat represent?
• Which process increases genetic diversity during meiosis?
• What does it mean when an organism is described as a eukaryote?
• What is the relationship of osmotic pressure (Π) to concentration of solute (M) according to the equation Π = iMRT?
• What is the function of the smooth endoplasmic reticulum in cells?
• Which of the following statements about residue 109 can be concluded from the data?
• What does an increase in losartan levels suggest regarding PRR's pathways?
• If an individual is heterozygous for two different CFTR alleles, what does this imply about their phenotype with respect to CF?
• Which of the following variables is commonly regulated by organisms to maintain homeostasis?
• How does the structure of a phospholipid contribute to cell membrane integrity?
• Which of the following enzymes is part of gluconeogenesis?
• What was noted about the changes in binding affinity regarding residues 201 and 269?
• What is chromatin?
• If a female heterozygous for G542X has a child with a male heterozygous for ΔF508, what is the probability that the child would be homozygous for G542X?
• What role does NPY play in relation to GnRH in female fertility?
• Which process ensures that genetic variations occur during meiosis?
• How do neurons transmit signals?
• Which organelle is responsible for energy production in eukaryotic cells?
• Which combination of pathways contributes to the observed increase in blood pressure from PRR overexpression?
• Which process converts light energy into chemical energy?
• What is the primary energy currency of the cell?
• What role do antioxidants play in biological systems?
• What type of macromolecule are enzymes primarily categorized as?
• Which statement best describes the role of prorenin in this study?
• What is the basic structural unit of proteins?
• Which term describes the process of maintaining a stable internal environment?
• Which structure regulates the flow of substances in and out of the cell?
• What is a prion best described as?
• What molecule serves as the primary energy currency of the cell?
• Which type of bonds links the subunits of Protein X covalently?
• Which structure in the cell is responsible for protein synthesis?
• Which biomolecule is primarily responsible for storing and transmitting genetic information?
• The enzyme encoded by the tdh2 gene catalyzes the reversible conversion of which of the following?
• What is the best experimental method to analyze the effect of tdh2 gene deletion on the rate of histone acetylation?
• Individuals with a deficiency in which receptor system would most likely benefit from NPY in combination with GnRH?
• What is a phenotype?
• How is enzyme efficiency quantified in enzyme kinetics?
• Which enzyme is NOT involved in glycogenolysis?
• What is the main role of platelets in the blood?
• What energy-rich molecule is produced during photosynthesis?
• What does a high Km value indicate regarding an enzyme's affinity for its substrate?
• Which process describes the movement of water across a semipermeable membrane?
• What type of reaction occurs when larger molecules are broken down into smaller units?
• Which factor is not a component of homeostasis in biological systems?
• What is the method of action of chloramphenicol in treating infections like typhoid fever?
• How are proteins typically targeted for degradation by the proteasome?
• How are proteins targeted to specific organelles in the cell?
• What is the main function of the circulatory system?
• Which type of RNA carries amino acids during protein synthesis?
• What is the role of mRNA in protein synthesis?
• In which phase does DNA replication occur during the cell cycle?
• What overall conclusion can be drawn from the data regarding the impact of PRR on blood pressure?
• What is the main energy currency of the cell?
• What is the primary function of enzymes in biological systems?
• Which process involves synthesizing RNA from a DNA template?
• What is the main energy source for cellular activities?
• What is the end product of glycolysis?
• What is a major function of the ribosomes in a cell?
• What is the basic unit of heredity?
• What is the role of the microbiome in human health?
• What is a homologous chromosome?
• What is the significance of homeostasis in cellular function?
• What term describes the initial stage of cellular respiration where glucose is broken down?
• Which type of interaction helps to stabilize the tertiary structure of proteins?
• What is a common mechanism by which enzymes lower activation energy?
• What type of RNA carries the genetic code from the nucleus to the ribosome?
• What is the role of hemoglobin in the body?
• What is the primary function of the plasma membrane?
• What type of biomolecule are antibodies?
• What role do voltage-gated potassium channels play in neuron signaling?
• Which structure in eukaryotic cells contains the genetic material?
• What is the main product of the Krebs cycle?
• What do we call the physical and functional characteristics of an organism?
• What process converts glucose into pyruvate?
• What role does temperature regulation play in homeostasis?
• What type of inheritance patterns do sex-linked traits follow?
• Which of the following is NOT a characteristic of enzymes?
• Where do transcription and translation occur in eukaryotic cells?
• What type of amino acid residue is likely to be prevalent in the middle region of the seven α-helical domains of Frizzled?
• What process is involved in maintaining fluid balance in organisms?
• What are the products of the Calvin cycle?
• What is the term for a reaction that releases energy?
• What is the role of tRNA in protein synthesis?
• What pathway is indicated to be part of the blood pressure increase due to PRR overexpression?
• What is the primary function of the endoplasmic reticulum?
• By what percentage does NPY amplify pituitary responses to GnRH?
• What structure is primarily responsible for ATP production within the mitochondria?
• What is the purpose of PCR (polymerase chain reaction)?
• What is the primary mechanism by which organisms maintain homeostasis?
• What effect does DPC have on the hydrophobic amino acids in Protein X?
• What is the primary role of lipids in biological membranes?
• Which mechanism is generally responsible for the rapid development of antibiotic resistance in bacterial populations?
• Which component of the cell membrane is primarily responsible for its fluidity?
• Which of the following statements is true regarding pH regulation in organisms?
• What is the primary component of blood that regulates pH levels within the body?
• Which part of the protein structure is involved in hydrophobic interactions?
• What is the function of ribosomes in cells?
• What is the process by which cells communicate with each other using signaling molecules?
• Which process is primarily affected by inhibitors of endosomal acidification?
• What are the three components of the cell theory?
• Which organelle is responsible for energy production in eukaryotic cells?
• What is the function of the plasmodesmata in plant cells?
• What process converts molecular oxygen into energy stored in ATP?
• Which CFTR allele is associated with an increased susceptibility to cystic fibrosis in homozygotes?
• Which amino acid residues of PRR are believed to significantly impact binding to prorenin?
• What is the primary purpose of cellular respiration?
• What is the term for the genetic makeup of an organism?
• In the context of the study, which outcome was associated with the overexpression of PRR?
• What term describes the genetic makeup of an organism?
• What is the term for the observable traits of an organism?
• Which molecule is primarily involved in cellular respiration?
• Which approach can analyze the effect of reactive oxygen species (ROS) on the lifespan of yeast?
• Which process is involved in the synthesis of proteins from mRNA?
• Which type of bond is primarily responsible for the secondary structure of proteins?
• In the absence of Frizzled activation, β-catenin is modified and:
• What cellular process occurs in the mitochondria?
• At an osmotic pressure of 24 atm, what is the approximate concentration of NaCl in sea water?
• What molecule carries amino acids to the ribosome during protein synthesis?
• What process is responsible for moving chlorine ions into the cells of green algae against their concentration gradient?
• What is the role of enzymes in biochemical reactions?
• What structure in the cell membrane is primarily responsible for selective permeability?
• What is the primary function of the smooth endoplasmic reticulum?
• What best describes the role of proteases in the context of virus entry into host cells?
• What is the first major organ that bloodborne S. typhi would encounter after entering the bloodstream from the small intestine?
• Which renal structure does vasopressin regulate for the insertion of aquaporins?
• Which component of the cell membrane helps to maintain fluidity?
• How are genetic traits primarily inherited from parents?
• What type of cells are the primary myelin-forming cells in the peripheral nervous system?
• What is the basic unit of life?
• How is genetic information transmitted from DNA to RNA?
• Which type of reaction is utilized to form polymers from monomers?
• Which biomolecule's monomer is an amino acid?
• What type of bond is critical for the structure of proteins and is formed between amino acids?
• What is the purpose of the endoplasmic reticulum?
• What defines a homologous structure?
• What event will most likely occur if Protein X is inserted into the inner membrane of mitochondria?
• Which of the following best describes a population in biological terms?
• What cellular structure is primarily responsible for detoxifying harmful substances?
• During the conversion of α-ketoglutarate to oxaloacetate, how many molecules of reduced electron carrier are generated?
• What is the primary function of ribosomes?
• What do we call the diversity of ecosystems or species in a given area?
• Which component of the cell membrane is critical for signaling?
• Which organelle is responsible for ATP production in eukaryotic cells?
• What do we call a group of interbreeding individuals in a given area?
• Which of the following is an example of a homeostatic response?
• What is the function of the lysosome in the cell?
• What is most likely true about β-catenin?
• How does natural selection affect allele frequencies in a population?
• Which pathway generates the most ATP during cellular respiration?
• What effect does temperature have on enzyme activity?
• Which part of the plant cell is responsible for photosynthesis?
• What is the primary function of chloroplasts?
• What is the primary role of CatB and CatL proteases in the context of viral membrane fusion?
• Which organ system is primarily responsible for hormone regulation?
• What finding best supports the hypothesis that NPY is necessary for the preovulatory LH surge?
• What is a mutation?
• What structural feature distinguishes bacteria from archaea?
• Which vitamin is essential for vision and immune function?
• Which process involves the uptake of extracellular material through vesicle formation?
• What best explains the reduced effectiveness of chloramphenicol in treating typhoid fever?
• Which molecule is known for storing long-term energy?
• Which type of feedback loop generally promotes stability in homeostasis?
• What type of bond forms between two amino acids in a protein?
• What effect does the overexpression of PRR have on blood pressure through an angiotensin II-dependent pathway?
• How is feedback inhibition important in metabolic pathways?
• What characteristic differentiates Wnt proteins from other proteins?
• What process involves the conversion of glucose into pyruvate?
• Which of the following statements regarding the electron transport chain (ETC) is true?
• What can be determined about the interaction of PRR and prorenin based on the study?
• Which enzyme is involved in both gluconeogenesis and the citric acid cycle?
• What is the main function of chloroplasts in plant cells?
• What is the term for the total number of all that an organism can produce?
• Which organelle is known as the powerhouse of the cell?
• What is the expected consequence of dendrotoxin blocking potassium channels in motor neurons?
• How do competitive inhibitors affect enzyme activity?
• What is the main function of ribosomes in a cell?
• What role do hormones play in homeostatic regulation?
• What role does the cytoskeleton play within a cell?
• What may be inferred about the function of residue 140 in PRR based on the study findings?
• What form of transport requires energy input?
• What is the main distinction between prokaryotic and eukaryotic cells?
• What do schwann cells provide in the context of neuronal function?
• What was the purpose of the study examining the effects of neuropeptide Y (NPY) on the pituitary?
• Which of the following processes produces lactic acid in muscle cells?
• Which process is essential for protein maturation and sorting?
• Which component of blood is responsible for oxygen transport?
• What is a key feature of passive transport processes?
• What role do ribosomes play in cells?
• Which of the following statements correctly defines low Km?
• What process is indicated by an increase in fluorescence in the presence of DPC?
• Which process involves the copying of genetic information from DNA to RNA?
• Which enzyme is responsible for DNA replication?
• Which type of RNA is responsible for carrying amino acids to the ribosome?
• What type of bond holds the two strands of DNA together?
• What is the primary role of neurotransmitters in the nervous system?
• What describes the phenotype of an individual heterozygous for one ΔF508 and one wild-type CFTR allele?
• What is generally true about the path of S. typhi in a human host following oral ingestion?
• What is the pH range of most biological systems?
• Which cellular structure is responsible for detoxifying harmful substances in the liver?
• What is the primary outcome of mitosis?
• Which process describes the movement of water across a selectively permeable membrane?
• What is the term for the genetic makeup of an organism?
• Why is NPY not classified as a releasing factor?
• What are the main structures of a nucleotide?
• What does Vmax refer to in enzyme kinetics?
• What is the principal role of chloroplasts in plant cells?
• What occurs during the G1 phase of the cell cycle?
• What is the primary purpose of fermentation in cellular processes?
• What is the primary role of enzymes in biochemical reactions?
• Which statement accurately describes Wnt proteins?
• What is the function of the Golgi apparatus?
• What type of macromolecule are enzymes classified as?
• How do feedback mechanisms contribute to homeostasis?
• Which structure in plant cells is responsible for photosynthesis?
• What are alleles?
• What is the term for the variations of a gene that can exist in a population?
• What effect does the deletion of the hst3 gene have on the lifespan of yeast in relation to the rtt gene?
• Which of the following are the four primary bases found in DNA?
• Which hormones are produced in the adrenal gland?
• What type of bond is formed between nucleotides in a DNA strand?
• What is the pH range that is generally considered optimal for most biological systems?
• Which organ is primarily responsible for thermoregulation in humans?
• What type of cellular signaling involves direct contact between cells?
• What molecule is formed as a byproduct of cellular respiration?
• Which type of bond is created between nitrogenous bases in DNA?
• Which molecule acts as a coenzyme during the Krebs cycle?
• Which mitochondrial enzyme is responsible for the conversion of succinate to fumarate?
• What are the two main types of nucleic acids?
• In glycolysis, what molecule is produced from glucose?
• In which part of the cell does the Krebs cycle take place?