porque los alimentos se oscurecen?(platanos, palta, manzana, papa, etc) respondan pls✋

Answers

Answer 1

Answer:

Una enzima es una sustancia, generalmente una proteína, en la célula de un organismo que acelera las reacciones químicas.

Durante el pardeamiento enzimático, una enzima llamada fenolasa y otro compuesto orgánico que se encuentra en las células de la fruta llamados fenoles pasan por una reacción de oxidación cuando se exponen al oxígeno. La fenolasa regula la reacción, convirtiendo los fenoles en melanina.

Por lo general, las enzimas de la fruta están encerradas en tejido. Las enzimas están metidas en sus células, trabajando para madurar la fruta. Pero cuando esas células se descomponen, ya sea por una causa externa como si alguien muerde o corta la fruta o por causas naturales como el envejecimiento, las enzimas se liberan y entran en contacto con el oxígeno, lo que desencadena la reacción química y hace que la fruta se vuelva marrón.


Related Questions

Help me please thank youuu ❤️❤️

Answers

I believe history is the most important subject to learn. we learn what worked and what didn’t work socially and politically for our country. learning from the past helps us understand the struggles of every group of people in this country that help shape this country so we don’t repeat the cycle of struggle here.

Brain lateralization refers to the ability of the brain to process multisensory information ability of the brain to process multisensory information A capacity of the brain to control basic motor movements capacity of the brain to control basic motor movements B aptitude of the brain to produce speech aptitude of the brain to produce speech C ability of the brain to control basic functions such as respiration and blood circulation ability of the brain to control basic functions such as respiration and blood circulation D inclination for certain cognitive processes to be specialized to one hemis

Answers

Answer:

The correct answer is D ''inclination for certain cognitive processes to be specialized to one hemisphere of the brain or the other.'

Explanation:

Lateralization refers to the different specialization of the cerebral hemispheres, that is, it is the functional specialization of the nervous system that is observed to a different degree on one side or the other of the neuroaxis. Our brain is subdivided into two hemispheres, the right and the left. The left hemisphere is more specialized in language and control of emotions and the right in spatial thinking, perception of emotions and facial recognition.

Over 400 years ago, the bark of the cinchona tree was discovered to contain a chemical compound called quinine. Quinine was, and still is, used to cure and prevent malaria. This is an early example of ____________________.

a. biotechnology

b. scientific modeling

c. genetic engineering

d. genomics

Answers

Answer:

A.

Explanation:

A command economy features:?

Answers

Answer:

A command economy is a system where the government, rather than the free market, determines what goods should be produced, how much should be produced, and the price at which the goods are offered for sale. It also determines investments and incomes. The command economy is a key feature of any communist society.

Explanation:

identity the function of the cell membrane. what is the function of the cell membrane? please explain​

Answers

the function of the cell membrane is to provide protection for the cell. it also transports nutrients into the cell and also transports toxic substances out of the cell.
Simply: it lets things in and out of the cell it may also be helpful to remember that it has 2 layers

The tendency of a cell or an organism to maintain a stable internal environment is known as _______.
A.
homeopathy
B.
homology
C.
homogeneous
D.
homeostasis

Answers

The answer to your question is Homeostatis

PLSS HELP WILL GIVE BRAINLIEST
What is one benefit GMO is for the environment?

Answers

Answer:

Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer) Less use of pesticides. Increased supply of food with reduced cost and longer shelf life.

Natural selection was proposed by Charles Darwin to explain how species evolve. What is it?

Answers

Charles Darwin developed the idea of natural selection after a five-year voyage to study plants, animals, and fossils in South America and on islands in the Pacific. In 1859, he brought the idea of natural selection to the attention of the world in his best-selling book, On the Origin of Species.

In order for geothermal energy to be produced efficiently, the geology of the area needs high subsurface _______
A. Depth
B. Pressure
C. Salinity
D. Temperature

help me please help me help me help me help me help ​

Answers

Answer:

D. Temperature

plz mark me as brainliest

This was a hard one for me but i do think it’s D.temperature

When is the production of genetically identical offspring a disadvantage? Explain your reasoning.

Answers

Answer: In an unstable or unpredictable environment asexually-reproducing species may be at a disadvantage because all the offspring are genetically identical and may not have the genetic variation to survive in new or different conditions. In an unstable or unpredictable environment asexually-reproducing species may be at a disadvantage because all the offspring are genetically identical and may not have the genetic variation to survive in new or different conditions.

Explanation:

The correct answer for the given question about Asexual Reproduction is "Production of genetically identical offspring is a disadvantage in an unstable or unpredictable environment".

What is Asexual Reproduction?Asexual reproduction refers to a type of reproduction when a child is born to a single parent. The newly created people are clones of their parents since they have the same genetic and physical characteristics.Both multicellular and unicellular species can reproduce asexually. There will be no gamete fusion involved in this procedure, and the number of chromosomes will remain the same. With the exception of specific situations where there is a possibility that a rare mutation may occur, it will inherit the same genes as the parent.

So we can conclude that as all of the offspring are genetically identical and could not have the genetic variation to thrive in novel or changing environments, asexually reproducing animals may be at a disadvantage in an unstable or unpredictable environment.

Learn more about Asexual Reproduction here:

https://brainly.com/question/423209

#SPJ2

An individual who is establishing a strategy to use in order to accomplish a goal is demonstrating which phase of the self-regulation
cycle?

O self-reflection

O performance

O forethought

O goal accomplishment

Answers

Answer:

Forethought

Explanation: Basically means planning ahead of time in order to know what to do when you are faced in a situation or event that will happen in the future

Answer:

The answer is C. Forethought

Explanation:

The diagram shows the complete classification for the red
fox. The names for some of the taxa are missing.
Eukarya
?
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Canidae
?
Vulpes
?
Vulpes vulpes
If species is the most specific group shown in the diagram, what is the
scientific name of the red fox species?

Answers

Answer:

Kingdom

Explanation:

Answer:

Kingdom

Explanation:

A-P-E-X

can you send it on here

Answers

Answer:

Send what??

Explanation:

If somebody is your friend, you can send a message to them through the Brainly messages (which will be taken away soon). You can also share the link to Brainly or share answers to questions with friends and family via text. You can also pair your Brainly account with a parent or guardian.

hope this helps

A scientific name consists of 2 identifying pieces of information. In the correct order, they are ___________ &. _________. (2 word answer separated by 'and' or '&')

Answers

Answer:

Binomial & nomenclature

Explanation:

Consist of genus, the first name and species,the second name

which are examples of steroids? A. testosterone and trans fats B. cholesterol and phospholipids C. cholesterol and vitamin D D. estrogen and phospholipids

Answers

Answer:

A

Explanation:

because it really is suppose. to make u more stronger tougher and high testosterone.

what is the potential disadvantage of external digestion ​

Answers

This dispersal reduces the likelihood that a sperm will find an egg. Many sperm and eggs die before achieving fertilization. The low success rate of external fertilization puts animals at a reproductive disadvantage compared to internal fertilization.

The regulation of body temperature is a contributor to homeostasis. What body
system is responsible for this?
Digestive System
Musculoskeletal System
Nervous System
Circulatory System

Answers

Answer:

its the nervous system and the endocrine system

Explanation:

the nervous and the endocrine are the bodys main regulators

How do species evolve?

Answers

Answer:

Natural selection.

Explanation:

Animals mate with different animals creating a species with different genes that helps their kin live longer or stronger.

Biologists believe that new species evolve from existing species by a process called natural selection. ... Organisms that inherit that favorable new gene are likely to become more abundant than others of the species. Sometimes the population of a species becomes separated into two areas, by geography or by climate.

When does the body make most of its nerve cells

Answers

Answer:The target cells of neurons include other nerve cells in the brain, spinal cord, and autonomic ganglia, and the cells of muscles and glands throughout the body.

Explanation:please give braineest

Answer:

A nerve is formed by a bundle of many neurons. Neurons develop from the neural tube of the early embryo and in many animals continue development until sometime after birth. The development of motor neurons that have elongated axons is best understood. These cells are derived from tissue on the ventral side of the neural tube.

Explanation:

i found it on bing for you can you answer my newest qu plz i really need help

predict if a coelomate or an acoelmate would be larger

Answers

Answer:

Explanation:

A coelom is a hollow space surrounded by tissues. The basic structure of most animals comprises three tissue layers, an interior endoderm and an exterior ectoderm that are separated by a mesoderm. Typically, the endoderm forms the innermost digestive tract, the ectoderm the outermost skin layer, and the remaining internal organs are formed from the mesoderm. In derived animals, the endodermal tube is suspended from the dorsal and ventral surfaces by mesoderm, so as to leave open coeloms that allow circulation of fluids. Advanced circulatory systems develop from these coeloms.

What is the function of the flower of a plant?

Answers

Reproduction. The other answer is a hack. Any link with that beginning is just a spam/ hack.

La división celular sucede en 2 fases, en primer la lugar la división del ______________ y después la división del __________________ *

Answers

No idea what this means

2. Carbon has many benefits in an ecosystem. List three helpful ways carbon is used
by humans, plants, and other species:

1)

2)

3)

Answers

Carbon is a source of life found in all organisms. It’s half or carbon dioxide too, so it’s what we exhale, and when plants inhale

Carbon is used to build different macromolecules including lipids, carbohydrates and nucleic acids.

Carbon is a fundamental element that is required to build different types of macromolecules.

Carbohydrates are biomolecules consisting of carbon, hydrogen, and oxygen.

Lipids also contain carbon, hydrogen and oxygen, and they can also contain nitrogen, sulfur and phosphorus.

Nucleic acids (and also proteins) contain carbon, hydrogen, oxygen and nitrogen.

In conclusion, carbon is used to build different macromolecules including lipids, carbohydrates and nucleic acids.

Learn more in:

https://brainly.com/question/1152268

The most likely reason(s) a metastatic tumor cell might lose its connection to the basal lamina would be: a change in the integrin proteins from the cell's surface. a change in the cadherin proteins on the cell surface. a change in connexins disrupting gap junctions. All of these choices are correct.

Answers

Answer:

A change in the integrin proteins from the cell's surface.

Explanation:

Integrin proteins' principal function is to attach the cell to the basal lamina. Also, they transmit signals from the extracellular matrix to the interior of the cell. A change in the integrin could result in loss of connection between the mutated cell and the basal lamina.

Cadherin proteins connect one cell to another. A change in these proteins will not result in the loss of connection between the metastatic tumor cell and its extracellular matrix. It most likely will affect the communication and adhesion of cells.

A change in connexins will disrupt the communication between cells but not the connection to the lamina basal. Connexins are transmembrane proteins that connect one cell to another with gap junctions that allow the passage of different components from cell to cell.

The Tibetans and Han Chinese share several genetic traits and DNA. However, the EPAS1 gene, which increases the ability of red blood cells to carry oxygen even in low oxygen environments, is only commonly found in the Tibetan population that live in higher elevations. Explain why this gene is only common in Tibetan populations from the perspective of competitive advantage and natural selection. Write your answer in three to five sentences.(4 points)

Answers

Answer:

When in higher altitudes, ticker blond has a tendency to cause problems like heart attack's, however the Tibetans have adapted to the high altitudes and this has made their blood thinner in order to keep them safe in the altitudes, including that it has low oxygen rates in the altitude therefore providing more oxygen in the bloods cells.  

Explanation:

:D It's not my best explanation but I hope this helps <3.

Owing to the fact that ability of the redblood cells to  to carry oxygen even in low oxygen environments is neccessary at high elevations, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.

What is natural selection?

The term natural selection refers to the fact that organisms that are better adapted to their habitat will live longer and reproduce. Now we have to note that owing to the elevation at which they live, the people that possess this EPAS1 gene can cope with oxygen stress that could likely occur at a high altitude.

As such, the Tibetan population that live in higher elevations are found to possess the EPAS1 gene.

Learn more about natural selection: https://brainly.com/question/26690612

Whoever gets it right i will mark brainest

Answers

Answer:

For Desssert: C

For Taiga: A

For Tropical Rainforest: B

Explanation: Because desserts are very hot, we know that there aren't much plants due to the lack of rain/water, they're dry. Rainforests have lots of plants, so it's not B, and since the dessert is high temperature, A is obviously off the list.

Taiga is cold so it won't be good for soil and the plants won't grow as good as the wet rainforest so we can pick A. Then B for #2

Summer happens when the Earth is closest to the Sun.
True or False

!!!HELP QUICK!!!

Answers

Answer: False

Explanation:

Summer happens when the Earth is far away from the Sum

true, earth gets closer to the sun so it gets hot

How do the functions of DNA and RNA differ? *
1 point
DNA directs protein transport, while RNA aids in energy production.
DNA aids in energy production, while RNA directs protein transport.
O
DNA stores genetic information, while RNA relays genetic information for protein
synthesis.
DNA relays genetic information for protein synthesis, while RNA stores genetic
information.

Answers

DNA STORES GENERIC INFORMATION WHILE RNA RELAYS GENETIC INFORMATION FOR PROTEIN.

PLEASE HURRY!!!

What determines the similarities in anatomical features among organisms?

Answers

Answer: genes and chromosomes

Explanation:

The main function of the human digestive system is to
a. Rid the body of cellular waste materials
b. Process otrganic molecules so they can enter cells
c. Break down glucose in order to release energy
d. Change amino acids into proteins and carbohydrates

Answers

Answer:

B

Explanation:

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