Answer:
Why is healthy skin important? Healthy skin is important because it is your first line of defense against bacteria and other pollutants in the environment. Healthy skin is more resilient when faced with external stresses, serves as an important sensory organ and helps to regulate our body temperature.
The outermost layer of skin, called the epidermis, produces a thin barrier layer called the stratum corneum. This layer varies throughout the body in its structure, thickness, composition and functional properties. For example, the skin on your palms and soles is thicker than on your face.
Skin changes such as wrinkling are one of the physical alterations most readily associated with aging. It may surprise you that the outer layer of the skin, the stratum corneum, changes very little as we age. The main changes occur at a deeper level. Collagen, a basic chemical building block of skin and connective tissue, decreases with age.
Explanation:
There are microorganisms that are able to live in extreme environments under adverse conditions of pH, temperature and salinity. These microorganisms are classified as extremophiles. Within the group of extremophiles there are halophilic bacteria, which are those capable of living in extremely saline environments.
One biological factor that all living things are subject to suffer from is osmotic pressure. Halophilic microorganisms have developed mechanisms to adapt to saline environments where osmotic pressure acts with great intensity on individuals. These bacteria change the chemical composition of their membranes and also accumulate osmoprotective compounds in their cytoplasm to compensate for osmotic stress.
RAMIREZ, N; SANDOVAL, AH y SERRANO, JA. Las bacterias halófilas y sus aplicaciones biotecnológicas. Rev. Soc. Ven. Microbiol. [online]. 2004, vol.24, n.1-2 [citado 2019-09-22], pp. 12-23 . Disponible en: <http://ve.scielo.org/scielo.php?script=sci_arttext&pid=S1315-25562004000100004&lng=es&nrm=iso>. ISSN 1315-2556.
Metamorphic are formed through change underground sedimentary are formed through sediment
<span>The precision of scientific calculations is limited by the measurement that's the least precise out of all the measurements used in the calculation. When considering significant figures, the last answer should have the least significant figures out of all the measurements that entered into account and were able to be done with the most significant figures that could be directly measured. So, as more precise we are in measurements, more precise can be the final answer to a scientific calculation.</span>
The noncyclic pathway is a FLOW of electrons from water, to photosystem II, to PHOTOSYSTEM I to NADPH. Energy is released as ELECTRONS move through the first electron transfer chain. This energy pumps HYDROGEN IONS into the thylakoid compartment, and then they power the formation of ATP as they flow back out. Sunlight provides the energy needed to keep this cycle going.
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- Luminous energy is trapped by chlorophyll in Photosystem II.
- When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
- The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
- <em>When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules. </em>
- Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
- <em>When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II. </em>
- When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
- The released energy is used to produce ATP molecules.
- Hydrogen ions go back from the stroma to the thylakoid compartment.
The final products are oxygen, ATP, and NADPH.
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