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
Amiraneli [1.4K]
3 years ago
12

Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of

the decomposition are hydrogen (H2) and oxygen (O2). What is the effect of catalase on the decomposition of hydrogen peroxide? A. It decreases the activation energy needed to start the reaction. B. It decreases the total energy released by the reaction. C. It increases the total energy absorbed by the reaction. D. It changes the ratio of the amounts of the two products.
Biology
1 answer:
Len [333]3 years ago
8 0

Answer:

A. It decreases the activation energy needed to start the reaction

Explanation:

Organic catalyst which speed up the rate of organic chemical reaction is living cells are called enzymes.They have specific reaction site called active sites.This must be in prefect shape with the substrate for the organic chemical reaction to take place

When this occurs the minimum amount of  energy of  reaction to  activate or stimulate  the the atoms and molecules of the substrate to undergo chemical reaction is  lowered.This energy of reaction is celled activation energy.

Catalase thought its active sites lowers the activation energy so that the molecules of H2O2 could break down to C02 and H2 faster,thereby reducing the time for theses product to form.The is the general roles of enzyme.To increase the rate of chemical reaction,by reducing the activation  energy.

You might be interested in
Botulinum toxin is produced by Clostridium botulinum, a gram-negative bacterium. The toxin actually consists of 7 related toxins
Bess [88]

Answer:

A. Botulinum toxin possesses a heavy chain and a light chain, each of which takes part in the toxicity. The binding of the protein and its invasion within a nerve cell is permitted by the heavy chain. After the entry is permitted, the light chain functions like a protease and chops proteins, which would usually permit neurotransmitters to discharge out from the cell. This is basically a commotion of exocytosis or the discharging of neurotransmitters.  

The acetylcholine, that is, the obstructed neurotransmitter generally conducts a nerve impulse to a muscle, allowing the muscle to contract. By inhibiting the neurotransmitter, the botulinum toxin results in its distinctive flaccid paralysis.  

B. The small doses of the sterile, purified botulinum toxin when used in a medical setting as an injectable form prevent the release of a chemical known as acetylcholine by the nerve cells, which signal contraction of the muscles. By selectively interfering with the underlying tendency of the muscles to contract, the prevailing frown lines are smoothed out, and in the majority of the cases are almost invisible for a week.  

8 0
3 years ago
Proteins and fats are important for the cel. Which organelle below does NOT play a role in the production of one or more of thes
r-ruslan [8.4K]

Answer:

mitochondria  

Explanation:

Mitochondria are organelles found in eukaryotic cells that are capable of generating the main part of the energy required for the cellular biochemical reactions. In addition, mitochondria are also involved in distinct biological functions including, among others, cell signaling, death, differentiation and growth. It is believed that mitochondria evolved from prokaryotic organisms which introduced inside others to form eukaryotic cells, this theory is known as the 'endosymbiotic theory'.

3 0
3 years ago
What’s the difference between an organism”s and genotype and phenotype?
Aliun [14]

Answer:

Genotype is what you can’t see physically and phenotype is the physical characteristics of that organism.

Explanation:Genotype is known as the genetic makeup of an organism. Think the genes behind what your seeing.

Phenotype is the physical characteristics of an organism. For example:freckles,eye color, open or closed earlops..... things of that nature.

8 0
3 years ago
Read 2 more answers
What are the two types of force in simple machine?​
bazaltina [42]

Answer:

there are many..

Explanation:

wheel and axel are two type of forces in simple macine

5 0
2 years ago
Read 2 more answers
Get Creative The Easy Way
Mrac [35]

Answer:

ok.....

Explanation:

6 0
2 years ago
Other questions:
  • A researcher was attempting to quantify the amount of ddt (dichlorodiphenyltrichloroethane) in spinach using gas chromatography
    7·1 answer
  • What is an adaptive radiation?
    5·2 answers
  • If only a single member of a pair of chromosomes is present in a cell, it is a _____ condition and is most likely a _____ cell.
    11·1 answer
  • As the days get shorter and the temperature drops, this bear _______________ to get ready for hibernation. A) sheds extra fur B)
    8·2 answers
  • Question 15 (3 points)
    8·1 answer
  • What size is a human egg cell in micrometres?
    13·1 answer
  • Help please I’ll give u a gift
    9·1 answer
  • Physical or behavioral traits that are best suited for an environment are
    7·1 answer
  • Select the correct answer from each drop-down menu.
    15·1 answer
  • Which best describes global warming?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!