1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
leva [86]
3 years ago
10

A scientist observes that, when the pH of the environment surrounding an enzyme is changed, the rate the enzyme catalyzes a reac

tion greatly decreases. Which statement best describes how a change in pH can affect an enzyme?
A. A pH change can cause the enzyme to change its shape.
B. A pH change can remove energy necessary to activate an enzyme.
C. A pH change can add new molecules to the structure of the enzyme.
D. A pH change can cause an enzyme to react with a different substrate.
Biology
1 answer:
vredina [299]3 years ago
7 0

Answer:

A- A pH change can cause the enzyme to change its shape

Explanation:

A rise or fall in the pH of the medium from the optimum of pH 7 usually affect  the  enzymes' active sites  of  and therefore the  shape and  the  rate of enzyme activity.

Assuming  the pH is too low, the enzyme medium becomes acidic;Acidosis. The high Hydrogen ions concentration  interacts with the R-groups of the amino acids moiety of the enzymes, this interaction affects the ionization of the  R-groups, disrupting the ionic bonding holding these R-groups in shape.

This results in loss of the 3-Dimensional shape arrangements of the protein molecule  and therefore of the active sites. Since active sites of  enzymes  determines the specificity of the <u>enzymes substrate- complex </u> to give <u>enzyme-product complex,</u> the catalytic activity of the enzymes decreases, <u>the rate of  reaction decreases,and products formation stops, and the reaction also stops.</u>

The same is applicable to extremely high pH=Alkalosis.

However, the effective buffer system of the body prevents this scenarios from happening in real sense in the body. Through mopping by the  haemoglobin, excretion by the kidney, etc

You might be interested in
HELP!!! 10 PTS!!
DaniilM [7]

Answer:

B. A narrow region of the superior vena cava could become blocked, restricting blood flow to the heart.

Explanation:

7 0
3 years ago
What organelles do both prokaryotic and eukaryotic cells contain?​
Sedbober [7]

Answer:

All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.

Explanation:

trust me :)

8 0
2 years ago
In the water cycle, the process of occurs between the processes of evaporation and precipitation.​
Katarina [22]

Answer:

Condensation

Explanation:

Condensation must occur to have precipitation, and requires evaporation ot occur

6 0
2 years ago
Question 1 (5 points)
lora16 [44]

Answer:

Electricity, gravity of earth and structure of atom provide evidence.

Explanation:

The investigation of electricity, gravity of earth and structure of atom helps the student to understand that without touching, one object apply force on another object. In electric current, we can see the property of magnetism due to which it attract and repel objects while in gravity of earth, the earth apply gravitational force to attract objects towards itself. in the structure of atom, proton present in the nucleus which attract the electron present in the shells.

5 0
3 years ago
Read 2 more answers
ATG AATTCTCAATTACCT<br> TACTTAA GAGTTAATGGA<br> How many pieces of DNA would result from this cut
Salsk061 [2.6K]
I is I like the cut g
4 0
3 years ago
Other questions:
  • In cellular membranes, why do the tails ends of the lipid molecules face toward eachother?
    10·2 answers
  • Eggs are carried from the ovary to the uterus by the
    6·2 answers
  • When you are hot, blood vessels in the dermis ____________ in order to maintain homeostasis?
    10·1 answer
  • What are the 3 levels of diversity.
    10·1 answer
  • What occurs when seasonal extreme winds cause colder lower region ocean waters to climb closer to the surface?
    14·2 answers
  • Number of cell divisions in process of mitosis
    13·2 answers
  • I need answers for the Biology chapter 4 of photosynthesis and Cellular Respiration
    10·1 answer
  • If tall is dominant over short, and yellow seed is dominant over green, how would you write the genotype of a pea plant that is
    12·1 answer
  • During protein synthesis which molecule can be inside the nucleus and outside in the cytoplasm?
    7·1 answer
  • Why do you share similar traits with your parents
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!