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
vaieri [72.5K]
2 years ago
9

The epidermis is a barrier to ultraviolet rays, blocking much of the cancer-causing radiation from reaching the nuclei of cells

called
Biology
1 answer:
UkoKoshka [18]2 years ago
5 0

The epidermis is a barrier to ultraviolet rays, blocking much of the cancer-causing radiation from reaching the nuclei of cells called keratinocytes.

<h3>What is keratinocytes?</h3>
  • Skin cells, also known as epidermal keratinocytes, are highly specialized epithelial cells created for a very specific purpose: separating the organism from its environment.
  • Keratinocytes, which make up the majority of the epidermis, have a variety of functions that are crucial for skin restoration.
  • They carry out the re-epithelialization process, in which keratinocytes move, multiply, and differentiate in order to reestablish the epidermal barrier.
  • The majority of the epidermis's cells, known as keratinocytes, begin in the basal layer, manufacture keratin, and help to create the epidermal water barrier by producing and secreting lipids.
  • A kind of stratified epithelium known as keratinized stratified squamous epithelium has many layers of squamous cells, or keratinocytes, with the superficial layer of cells being keratinized.
  • The skin's epidermis is made up of this kind of epithelium.

Learn more about epidermis here:

brainly.com/question/893214

#SPJ4

You might be interested in
If E.coli is grown in a medium containing glucose and maltose in equal amounts, the glucose is broken down immediately followed
Assoli18 [71]

Answer:

<h2>Catabolite repression </h2>

Explanation:

1. Catabolite repression: it is the positive control of the lac operon.

2. It  results in an increase in the rate of transcription. Here, the CAP protein is activated by cAMP  which then bind to the lac operon and facilitate the binding of RNA polymerase to the promoter to transcribe the genes for lactose utilization.

3. Role of glucose in catabolite repression is that It stimulates transcription from the lac operon, causing an increase in cAMP levels in the cell. Glucose decreases the levels of cAMP in the cell, result in repressing transcription from the lac operon.

6 0
3 years ago
During cellular respiration, energy is stored in the form of _______.
marissa [1.9K]
Energy is stored in the form of <span>ATP, or </span>adenosine triphosphate, during cellular respiration. 

I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)
6 0
3 years ago
Read 2 more answers
A human starts as ______ cell(s) and by the time they are an adult, they have ______ cell(s).
oksian1 [2.3K]
A human starts with” 1 “cell and by the time they are an adult, they have “ 50 trillion “ cells
5 0
2 years ago
To denature an enzyme means the enzyme becomes _______________ and can no longer work properly.
prohojiy [21]
Malfunctioned?
denaturation is a permanent change, an enzyme cannot function again once it's denatured.
but enzymes are not living things , they cannot be killed.
(not sure)
6 0
3 years ago
If the test for a disease is accurate 52% of the time, how often will a test result come back positive if a patient doesn't have
Nuetrik [128]
There is a 48% chance it will come back positive when the patient doesn't have the disease. This is because 52+48=100 that is the 100% total because it is correct 52% of the time it is incorrect 48% of the time
4 0
3 years ago
Other questions:
  • How many times more pressure is there on organisms at levels just below the epipelagic zone than those in shallow reefs?
    15·2 answers
  • WHICH OF THE FOLLOWING MECHANISMS OF EVOLUTION USUALLY CAUSES AN INCREASE IN GENITIC DIVERSITY WITHIN A SPECIES
    8·1 answer
  • What planets have no moons
    10·1 answer
  • Mendel observed a 9:3:3:1 ratio of offspring when studying different traits. What would he have concluded if he had observed a 3
    11·2 answers
  • Choose all the answers that apply. Ground tissue _____.
    14·1 answer
  • Diciduous forest are found mainly in the temperate climate zone. Why are these forest not found in the tropical or polar zones ?
    8·1 answer
  • List and describe three methods of point pollution control.<br> 1.<br> 2.<br> 3.
    10·1 answer
  • Which best describes the law of independent assortment?
    8·2 answers
  • Question 5
    8·1 answer
  • Which statement best describes why the carbon cycle is important to life?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!