Define the role Ultraviolet Light ?

Q: Can human ever directly see a photon?

A: The eye is the sense organ responsible for perception of light (visualization). Humans, and other…

Q: How do folate, vitamin D, and uv intensity affect the skin color? Explain.

A: The colour of human skin varies from the darkest brown to the lightest shades. Variation in…

Q: Would you expect light with wavelength 530 nm to be absorbed only by the “green” photoreceptor?

A: Absorption spectrum refers to the part of the incident radiation that is absorbed by the substance…

Q: Which pigment and cells help humans to see in dim light?

A: The process of visual transduction is known to contain a light-sensitive receptor protein that is…

Q: Define "UV Rays: Too Much Exposure or Too Little?"

A: Everyone is exposed to ultraviolet radiation from the sun. The sun is the strongest source of…

Q: Differentiate between light phase and dark phase.

A: Photosynthesis is a process in which a plant absorbs solar light energy to convert it into chemical…

Q: If you had been born without cone cells in your eyes, would you still be able to see? Explain.

A: The eyes are important sense organs that allow an individual to see and react via optic stimulus.…

Q: When using a microscope, does the depth of focus decrease or increase with increasing magnification?

A: Microscope is an instrument used to observe minute organisms which are invisible to the naked eyes.…

Q: Define the four regions of the IR spectrum?

A: IR spectrum or infrared spectrum is a part of the electromagnetic spectrum. The waves of this…

Q: As “naked apes” humans lack the protective investment of fur that shields other mammals from the…

A: The human skin is the outer covering of the body and it is the largest organ of the integumentary…

Q: Considering the effects of UV light on bacteria and other microbes, what might you conclude about…

A: Ultraviolet (UV) rays are electromagnetic radiations from the sun. Purines and pyrimidines absorb…

Q: Which types of light cause damage to genetic material? (SELECT ALL THAT APPLY) ultraviolet visible…

A: ANSWER;- a) Ultraviolet light causes damage to genetic material. Explain;- DNA can be harmed when it…

Q: How sunscreen product's broad spectrum ability (resistance to both UVA and UVB) is measured?

A: Broad spectrum sunscreen : The sunscreen gives protection from the sun's harmful ultraviolet A…

Q: Name the photosensitive pigment present in the rod cells of the retina.

A: Human eye consists of rod and cone cells which are associated with the coloured and dim light…

Q: What do photopigments contain?

A: The eye is the sensory organ that helps in vision. It helps in visualizing objects, color, light…

Q: Why is it difficult to see colors in dim light?

A: The back portion of the eye that responds to light is called the retina. This is carried out with…

Q: Define the term photoreceptors?

A: Receptors are the substances that receive some signal or a molecule to facilitate detection.…

Q: Briefly explain how an image is made and magnified.

A: There are two lenses in a microscope. One lens is an objective lens and the other one is an…

Q: What limited protection do cells have against the damaging effects of UV radiation?

A: Ultraviolet rays or UV rays are short wavelength radiation shorter than visible light and greater…

Q: What is the function of cyclic GMP in photoreceptors?

A: Cyclic GMP is a cyclic nucleotide derived from guanosine triphosphate. it acts as a second messenger…

Q: explain light reaction steps?

A: Photosynthesis is the method by which autotrophic plants make their possess nourishment. Co2, water,…

Q: What is the value of uv?

A: Introduction UV is the invisible rays that are part of the energy that comes from the sun, Excessive…

Q: What types of damage to human tissues can result from prolonged exposures to UV radiation? What…

A: The UV region covers the wavelength range of 100-400 nm and is divided into three bands includes UVA…

Q: Which regulates the quantum of light entering the human eye?

A: Eye is the chief organ of the visual system. In most mammals they are paired structures and are oval…

Q: Specifically explain how UV light kills bacteria.

A: Ultraviolet (UV) light is an electromagnetic radiation with the wavelength ranging from 10 nm to 400…

Q: What happens when light is absorbed by a pigment molecule?

A: A pigment molecule plays an important role in the process called photosynthesis where the solar…

Q: When light strikes photoreceptors, what takes place?

A: Introduction Photoreceptor are specialized neurons found in retina, Which convert light energy in to…

Q: Which part of the human eye conveys the electrical signals generated by the light sensitive cells of…

A: The human eye is an organ that reacts to light and allows vision. It is a fused two-piece unit,…

Q: Which pigment and cells help humans to see in bright light?

A: The eyes are the visual organs and are situated in the eye sockets of the skull.

Q: Explain the Structure of Photoreceptors?

A: Hi dear, here's your answer.     1)Both human beings and creatures have vision, which is known as…

Q: All of the following are consequences of short wavelength UV irradiation EXCEPT (which is false?-…

A: Ultraviolet is a form of electromagnetic radiation. It has a wavelength from 10 to 400 nm and is…

Q: Explain the Absorption of Light by Photoreceptors?

A: Photoreceptors are present in the retina of the human eye.

Q: How  Sunscreen or Sun Filter ingredient's SPF is measured?

A: As per Bartleby guidelines, we are allowed to answer only one question at a time, please post other…

Q: Do zwitterions affect the various color response tests?

A: A zwitterion is a molecule having a charge of zero and at least two functional groups, one positive…

Q: What is photoreceptors?

A: Receptors are chemical structures made up of proteins that collect and send signals that can be…

Q: Describe the relationship between melanin and UV light exposure in the human population

A: Melanocytes, which are located in the basal layer of the epidermis, are the type of cell producing…

Q: Give a specific example on how to use UV-Vis spectrophotometer in Cosmetic Science.  Provide a…

A: The UV/Vis spectrophotometer is thermo Scientific Multiskan SkyHigh Microplate Spectrophotometer.…

Q: How can cells be made to fluoresce?

A: The cell can be defined as the basic membrane-bound unit which contains the fundamental molecules of…

Q: Give atleast 3 differences between UV and PDA detector and explain

A: Please follow step 2 for detailed explanation.

Q: Differentiate between transmission and scanning electronmicrosopes in image formation and…

A: In transmission electron microscopy, primary electron beam transmits (passes) through the specimen.…

Q: What occurs during phototransduction of light?

A: The process by which light's primary particles called the photons are converted into the electrical…

Q: Explain the Cells of the Retina Contain Light-Sensitive Proteins?

A: The outer layer of the retina contains the photoreceptor cells called cones and rods having a…

Q: Cells of the Retina ContainLight-Sensitive Proteins name them?

A: The inner layer of the eyeball consists of a sensitive layer called retina.Anteriorly it  extends to…

Q: Explain the theory of UV spectroscopy and its applications in biology in detail.

A: The UV spectroscopy is the type of absorption spectroscopy in which light of ultraviolet region is…

Q: Explain the effects of UV radiation on cells ?

A: The Sun is the source of all energy on earth. The light energy of the Sun is harnessed by all the…

Q: Define about Photoreactivation Repair: Reversal of UV Damage ?

A: Certain terms are fundamental concepts and terms used in biology, which is the study of life and…

Q: How does tritanopia relates to the visible spectrum

A: Visible spectrum is the region in electromagnetic spectrum which can be clearly visible to human…

Q: Briefly describe the use of refractive index in contrast.

A: Two types of pictures are created by the microscopes' lenses when a specimen is placed beneath the…