Enzymes lock and key - Study guides, Class notes & Summaries

AQA A LEVEL BIOLOGY Paper 1 2024 What is the function of the cell membrane? - ANS To control what enters and leaves the cell, acts as a barrier between the cell and its environment. What structural feature of the cell membrane allows substances to enter/leave? - ANS Partially permeable What is the fluid mosaic model? - ANS States that a membrane is a fluid structure (because phospholipids are constantly moving) with a "mosaic" of various proteins embedded in it Describe t...

C - Answer When the chromosomes line up in mitosis this is known as which phase? A. Telophase B. Anaphase C. Metaphase D. Prophase B - Answer Which cellular organelle contains enzymes that are considered digestive? A. Golgi Apparatus B. Lysosomes C. Nucleus D. Ribosomes B - Answer Organs repair themselves through a process of? A. Meiosis B. Mitosis C. Cellular differentiation D. Transformation A - Answer Which of the following is considered a model ...

Biochem Exam 1 Questions and Answers Graded A+ What happens to enzymes when the temperature slightly increases within an optimal range? The enzyme activity increases as the kinetic energy of molecules rises, allowing more frequent collisions between enzyme and substrate. Why do hydrophobic amino acids tend to cluster together in the center of a protein? To avoid contact with water, stabilizing the protein's structure. What is the significance of the "lock and key" model...

Tri 1 Biochem Past Exams Questions and Answers Already Passed What is the role of zinc in enzyme function? Zinc acts as a cofactor, stabilizing the structure of enzymes and aiding in catalysis. Which type of bond forms between the amino group of one amino acid and the carboxyl group of another? A peptide bond forms between the amino and carboxyl groups, linking amino acids together. How do enzymes use the lock-and-key model to explain substrate binding? The lock-and-key model ...

Carbohydrate, Lipid, Nucleic Acid, Protein, Enzyme Carbohydrate: Sugars and starches which body breaks down to glucose ● Structural function: cellulose and chitin ● Energy storage: amylose, amylopectin, glycogen ● Recognition molecules: glycoproteins and glycolipids Lipids: Fatty acids and their derivatives that are soluble inwater ● H and C and main components ● Fats ● Hydrophobic- thus help separate aqueous compartments ● Store energy (fats, oils, adipose) Protein: Mole...

HSC Biology|Complete Questions with A+ Graded Answers The process by which an organism maintains a constantly stable internal environment. Two stages: Detecting for changes to the stable state and correcting for these changes. Homeostasis All chemical processes occurring within an organism in order to sustain life. Metabolism An enzyme is a large protein molecule that acts as a biological catalyst for one specific molecule. What is an enzyme? Enzymes have an active site ...

TEAS Nursing Entrance Exam Questions and Answers Latest Updated 2024/2025 (100% Verified) When the chromosomes line up in mitosis this is known as which phase? A. Telophase B. Anaphase C. Metaphase D. Prophase B - Which cellular organelle contains enzymes that are considered digestive? A. Golgi Apparatus B. Lysosomes C. Nucleus D. Ribosomes B - Organs repair themselves through a process of? A. Meiosis B. Mitosis C. Cellular differentiation D. Transformation A - Which of the foll...

HSC Biology|Complete Questions with A+ Graded Answers The process by which an organism maintains a constantly stable internal environment. Two stages: Detecting for changes to the stable state and correcting for these changes. Homeostasis All chemical processes occurring within an organism in order to sustain life. Metabolism An enzyme is a large protein molecule that acts as a biological catalyst for one specific molecule. What is an enzyme? Enzymes have an active site ...

UCI Bio 93 with the Trio Final Review 2024 Questions and Answers 100% Pass Bioengernetics - Correct Answer ️️ -How energy flows through organisms. ATP - Correct Answer ️️ -Used for mechanical, transport, and chemical work. ATP is also an RNA nucleotide. Mechanical Work - Correct Answer ️️ -Energy used in motor proteins and muscle cells during contractions. Transport Work - Correct Answer ️️ -Energy used to move substances against their gradient. Chemical Work - Correct A...

Biology 1201 LSU Exam 2 Questions and Answers 100% Pass What type of chemical reaction is without outside energy? Spontaneous (exergonic/downhill) NOT INSTANTANEOUS -decreasing enthalpy and increasing entropy What is the equation for Free Energy? deltaG=deltaH-TdeltaS -free enrgy=enthalpy-(temp.)(entropy;disorder) -high deltaS=low delta G Entropy Disorder: -breakdown: increase in disorder, more parts -synthesis: decrease in disorder, less parts -high entropy=low free energy ...