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
What is present in mitochondria that allows photosynthesis to occur
Whitepunk [10]
Co2+h20+ light energy ---->02+ <span>carbohydrate Photosynthesis takes place in plants cells and sometimes in bacteria</span>
5 0
3 years ago
An energy-rich organic compound needed by organisms is ?
AfilCa [17]
The energy-rich compound needed by organism is : Carbohydrates
Carbohydrates consist of the combination of the existing Carbon, Hydrogen, and Oxygen alone.
For human, The source of carbohydrates could be found in almost every food, but the huge amount could be found in rice, potato, corn, cassava, oatmeal, etc

hope this helps
5 0
3 years ago
What factor is described as sexual
mr Goodwill [35]

Answer:

The correct answer is - D. natural selection.

Explanation:

Sexual selection takes place due to competition between individuals of the intraspecies same-sex and of mate choice which driving the evolution of reproductive traits.

Sexual selection is a mode of natural selection as it leads to the evolution of specific traits. Other examples or options are not related to sexual selection directly and are not affected by sexual selection.

6 0
3 years ago
An obligate anaerobe is an organism that would die in an oxygenated environment. What could be assumed about these organisms?
makkiz [27]
The correct option is C.
Obligate anaerobes are micro organisms that are poisoned and killed when exposed to the normal atmospheric oxygen concentration. These organisms can only survive in the absences of oxygen, therefore, they carry out only anaerobic form of respiration in order to obtain the energy that they need. <span />
7 0
3 years ago
Read 2 more answers
A classmate explains that igneous rocks can be changed to metamorphic rock by first being melted into magma and then cooling. Wh
Natasha2012 [34]

Answer:

Cooled magma becomes igneous rock

Explanation:

Took the quiz

3 0
3 years ago
Other questions:
  • "when treating a patient who experienced a pulmonary blast injury, you should"
    6·2 answers
  • A scientist completes a new investigation and announces that she has developed a new theory. Which of the following statements i
    14·2 answers
  • What is the purpose of studying and dissecting an earthworm?
    8·1 answer
  • What opposing beliefs do Antigone and Creon represent in Sophocles’s Antigone?
    9·1 answer
  • 1. Choose an element (1-20 ) from the periodic table.
    8·1 answer
  • Dolphins are members of which of the following orders?
    14·1 answer
  • Chemical weathering is noted by
    6·1 answer
  • Which statement best descibes a cause and effects that occurs during the process of muscle contration?
    15·1 answer
  • !!PLS HELP!!
    10·1 answer
  • What structure can you find dna tightly packed in?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!