- Perform complex photosynthesis.
- Maintain an internal environment distinct from their surroundings.
- Replicate their genetic material independently.
- Develop rigid cell walls for protection.
Category: Biology etea medical mcqs
- Organic molecules would have formed more rapidly.
- Complex polymers would have easily self-assembled.
- The formation of organic molecules would have been inhibited or reversed.
- Protocells would have developed complex metabolic pathways.
- Continuous heating of water in the flask.
- Presence of a condenser for cooling.
- Electrical discharges through the gaseous mixture.
- Collection of condensed liquid in a trap.
- Geothermal heat from volcanic activity.
- Chemical energy from deep-sea vents.
- Ultraviolet radiation and lightning.
- Photosynthesis by early autotrophs.
- Simple sugars and complex lipids.
- Nucleotides and nucleic acids.
- Amino acids and other simple organic molecules.
- Proteins and functional enzymes.
- Oxidizing nature with abundant free oxygen.
- Reducing nature with absence of free oxygen.
- Neutral composition with balanced gases.
- High concentration of ozone and nitrogen.
- Enzyme denaturation
- Optimal temperature reached
- Enzyme saturation
- Product inhibition
- It can be recycled after the reaction
- It does not participate in the reaction
- It is not chemically altered during the reaction
- It can catalyze different types of reactions
- Allosteric activation
- Feedforward activation
- Feedback inhibition
- Competitive activation
- Sensitivity to temperature
- Specificity to substrate
- Reversibility
- Allosteric regulation
- Increased enzyme stability
- Enhanced catalytic efficiency
- Reduced or lost enzyme activity
- A change in optimal pH
- Generate heat during reaction
- Lower the activation energy barrier
- Increase the concentration of reactants
- Shift the reaction equilibrium significantly
- Allosteric site
- Regulatory site
- Active site
- Cofactor binding site
- Increased kinetic energy of substrate
- Enzyme saturation
- Denaturation of the enzyme protein
- Increased product concentration
- Competitive inhibitor
- Allosteric activator
- Non-competitive inhibitor
- Substrate analogue
- Each enzyme can catalyze any type of reaction.
- An enzyme will only bind to certain types of cofactors.
- Each enzyme typically catalyzes only one or a few related reactions.
- Enzymes are only found in specific cells.
- Free energy
- Binding energy
- Kinetic energy
- Activation energy
- A temporary slowdown in reaction rate
- Complete and lasting inactivation of the enzyme
- Increased enzyme affinity for substrate
- Reversible conformational changes
- Bind to an allosteric site
- Form an irreversible bond with the enzyme
- Bind to the active site of the enzyme
- Increase the activation energy of the reaction
