Question

Which of the following is NOT a pigment that influences skin color? a. melanin b. xanthophyll...

Which of the following is NOT a pigment that influences skin color?

a. melanin

b. xanthophyll

c. carotene

d. hemoglobin

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Option b Xanthophill is correct

Factors which influence the skin color are

1) Pigments in the epidermis - Epidermal pigmentation

Pigments like Melanin, carotene influence the skin color

Melanin produced by the melanocytes cause black or yellow black pigmentation to the skin

Conditions related to melanin:

Vitiligo - Loss of melanocytes, white spots on the skin

Excess Melanocyte stimulating hormone cause tumor giving dark color to the skin

2) Blood circulation to dermis

Hemoglobin present in the blood influence the skin color

Flushed red skin when the vessels are dilated with blood

Pale skin when blood supply is reduced to the skin

Cyanosis - bluish coloration of skin due to prolonged lack of blood supply to skin

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In humans, at least one gene produces melanin skin pigment in response to UV radiation (that...
In humans, at least one gene produces melanin skin pigment in response to UV radiation (that is, pigment production increases in response to sun exposure, leading to tanning). Thus, a human may have dark skin if they have been exposed to lots of sunlight but may have light skin if they have not been exposed to sunlight. What kind of inheritance is this an example of? Pleiotropy Polygenic inheritance Epistasis Gene-environment interaction
Albinism is an autosomal recessive condition characterized by absence of melanin pigment from the skin, eye...
Albinism is an autosomal recessive condition characterized by absence of melanin pigment from the skin, eye and hair. Two heterozygote carriers of albinism marry and plan a family of five. What is the probability that at least 3 children will be normal?
1- Multiple Choice. Which of the following are characteristics of the dermis? A. Binds the skin...
1- Multiple Choice. Which of the following are characteristics of the dermis? A. Binds the skin to the underlying tissues B. Contains blood vessels, nerves, hair follicles, some muscle, oil and sweat glands C. Contains connective tissue that supports and gives structure to the skin D. Contains dead, keratin-filled cells E. Contains fatty tissue F. Contains pigment, which determines hair and skin color G. Provides an excellent barrier against most substances, but not alkaline materials and fat-soluble materials H. Provides...
Hormones thyroxine, adrenaline and the pigment melanin are formed from (a) tyrosine (b) proline (c) tryptophan...
Hormones thyroxine, adrenaline and the pigment melanin are formed from (a) tyrosine (b) proline (c) tryptophan (d) glycine.
TLC Lab question: Zeaxanthin is the pigment that gives paprika its characteristic color. Based upon your...
TLC Lab question: Zeaxanthin is the pigment that gives paprika its characteristic color. Based upon your knowledge of the structure of b-carotene, would Zeaxanthin have a higher or lower Rf value compared to b-carotene if a mixture of Zeaxanthin and b-carotene were to be spotted on TLC plate which is then developed in a 60 % acetone in hexane solvent system? (Assume that normal phase thin-layer chromatography is being carried out).
1.Which pigment (identify the pigment, not the color) found in the leaf is the most important...
1.Which pigment (identify the pigment, not the color) found in the leaf is the most important one for photosynthesis? 2. Summarize why other colors (other than green) can be seen in leaves in the fall? 3. What three things does the quality of the fall foliage depend on?
Occurs on the thylakoid membranes: a. The Calvin Cycle b. The Dark Reactions c. The Light...
Occurs on the thylakoid membranes: a. The Calvin Cycle b. The Dark Reactions c. The Light Reactions d. Chlorophyll electron excitement e. C and D The plant pigment most involved in light absorption: a. Chlorophyll b b. Chlorophyll a c. Carotene d. Xanthophyll e. Anthocyanin The central atom in any chlorophyll molecule. a. calcium b. sodium c. iron d. magnesium e. sulfur
The skin is the body's largest organ. It's made up of many different types of cells....
The skin is the body's largest organ. It's made up of many different types of cells. Oils, produced by the sebaceous glands, prevent the skin from drying and splitting. The pigment melanin, produced by melanocytes in the epidermis, protects the skin from the harmful effects of ultraviolet radiation. Sweat, released through ducts to the skin surface, helps to cool the body. The types of cells that produce these compounds have different numbers of specific organelles, depending on their function. Melanocytes...
Part A: The MC1R (melanocortin 1 receptor) gene is responsible for normal pigmentation of skin in...
Part A: The MC1R (melanocortin 1 receptor) gene is responsible for normal pigmentation of skin in humans and controls which kind of melanin is made by skin cells, eumelanin and/or pheomelanin. Melanin serves as a cover for the cells so harmful UV rays cannot reach the nucleus and cause mutation, but also protects folate, a type of B vitamin essential in growth and metabolism. However, there are two sides to this story: exposure to sunlight is required to convert calcium...
Part A: The MC1R (melanocortin 1 receptor) gene is responsible for normal pigmentation of skin in...
Part A: The MC1R (melanocortin 1 receptor) gene is responsible for normal pigmentation of skin in humans and controls which kind of melanin is made by skin cells, eumelanin and/or pheomelanin. Melanin serves as a cover for the cells so harmful UV rays cannot reach the nucleus and cause mutation, but also protects folate, a type of B vitamin essential in growth and metabolism. However, there are two sides to this story: exposure to sunlight is required to convert calcium...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT