For Enzymes: what would happen if you increase an enzyme vs increase substrate concentration ??? For...

For Enzymes: what would happen if you increase an enzyme vs increase substrate concentration ???

For photo synthesis :how are light dependent and light independent reactions related???

Expert Solution

gladiator answered 2 years ago

What are enzymes? What is the active site of an enzyme? What does the term substrate...

What are enzymes? What is the active site of an enzyme? What does the term substrate mean?

4. The rate with which enzymes can transform a substrate varies from enzyme to enzyme, and...

4. The rate with which enzymes can transform a substrate varies from enzyme to enzyme, and sometimes substrate to substrate. a) How are competitive and uncompetitive reversible inhibition similar? How is their effect on rate different? b) Enzyme reaction rates drop off dramatically as temperatures pass 50 °C or so, and do not return to their previous rate when cooled. Explain the drop off in activity and the lack of return to the previously higher reaction rates after heating. c)...

If the substrate concentration is limiting, how does increasing enzyme concentration affect reaction rate? A.Increasing enzyme...

If the substrate concentration is limiting, how does increasing enzyme concentration affect reaction rate? A.Increasing enzyme concentration has no effect on reaction rate. B.Increasing enzyme concentration results in an increase in reaction rate. C.Increasing enzyme concentration decreases reaction rate.

What assumption concerning substrate concentration is made in the discussion of enzyme kinetics? Why is this...

What assumption concerning substrate concentration is made in the discussion of enzyme kinetics? Why is this important?

Which of the following statements about enzyme substrate complexes is TRUE? A. At high substrate concentration...

Which of the following statements about enzyme substrate complexes is TRUE? A. At high substrate concentration the rate of the reaction is first order. B. The enzyme concentration is higher than the substrate concentration under physiological conditions. C. Alteration in the conformation of the enzyme may occur when substrate binds. D. Increase in enzyme concentration does not affect the rate of the reaction.

Why are Km values of enzymes typically at or near the cellular substrate concentration?

Describe what you think would happen to a cell that was missing the ligase enzyme and...

Describe what you think would happen to a cell that was missing the ligase enzyme and tried to replicate its DNA? Explain what this would mean for replication, and what it would mean for the organism.

1)Which of the following is true of enzyme characteristics? (a) enzymes catalyze reactions when a substrate...

1)Which of the following is true of enzyme characteristics? (a) enzymes catalyze reactions when a substrate binds to the allosteric site (b) enzymes catalyze reactions by increasing the activation energy (c) enzymes do not exhibit specificity and a single enzyme can catalyze various different reactions (d) enzymes lower the activation energy of specific reactions, speeding up the reaction rate 2) Microbial growth is measured by what parameter? (a) increased cell size (b) increased size of cellular components (c) increase in...

What would happen if at rest, there was no concentration gradient for Na+ or K+? You...

What would happen if at rest, there was no concentration gradient for Na+ or K+? You have a muscular dysfunction that lacks T-tubules. How might this affect muscle contraction? You have a muscular dysfunction that lacks sarcoplasmic reticulum. How might this affect muscle contraction? You have a muscular dysfunction that lacks voltage-gated channels. How might this affect muscle contraction? You have a muscular dysfunction that lacks chemically-gated channels. How might this affect muscle contraction? If tropomyosin is never moved off actin, what would be...

1a) what is the relationship between substrate concentration and reaction rate? b) Describe how the enzyme...

1a) what is the relationship between substrate concentration and reaction rate? b) Describe how the enzyme structure is effected: i) below the optimal temperature ii)above the optimal temperature? c)Why is enzyme activity reduced at pH values above or below the optimum? How does the enzyme structure change at non-optimum pH?

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