<em>Amino</em><em> </em><em>acid</em><em> </em><em>is</em><em> </em><em>one</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>substances</em><em> </em><em>that</em><em> </em><em>are</em><em> </em><em>found</em><em> </em><em>in</em><em> </em><em>animal</em><em> </em><em>and</em><em> </em><em>plant</em><em> </em><em>bodies</em><em> </em><em>and </em><em>which</em><em> </em><em>combines</em><em> </em><em>to</em><em> </em><em>form</em><em> </em><em>proteins</em><em> </em><em>(</em><em>which</em><em> </em><em>is</em><em> </em><em>impo</em><em>rtant</em><em> </em><em>for</em><em> </em><em>growth</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>body</em><em>)</em><em> </em><em>.</em>
This pertains to the structure of proteins. Secondary structures are stabilized by the presence of hydrogen bonds. The common types of secondary structures of proteins are the alpha helix and the beta sheets, each performing different functions.
Primary structure of protein is the peptide molecule comprised of peptide bonds. Once these peptide grows long enough, it will either be arranged into alpha helices or beta sheets stabilized by hydrogen bonds and this is the secondary structure. Once there is protein folding involved in the secondary structure of protein, then the folded protein is called the tertiary structure (or a protein subunit). When protein subunits come together to perform a specific function, then that is the quaternary structure.
Attached is a figure concerning the protein structures.
Close suction drains play very crucial in surgical wound healing. It is important that the wound suction drain works properly because the proper healing of the wound depend on it. If the wound suction drain do not work properly, it will be difficult to obtain accurate recording of the volume and the contents of the drainage that is coming out from the wound. Thus, it will be difficult to monitor for excessive bleeding, infections and things like that which may prevent proper healing.
The chorion develops into the PLACENTA, a pancake-like structure that is attached to the endometrium and is about 7 inches in diameter and 1-2 inches thick.
Placenta is an organ present inside the uterus that contains the fetus and connects the fetus to the uterine wall of the mother. The fetus derives all the nutrients and food from the mother with the help of placenta.
Answer:
1. Another word for chemical weathering is b. disintegration
Chemical weathering is a process by which the rocks are broken down into parts and sediments by the action of a chemical agent such as alkali or acid. The disintegration can be a natural process by which a solid body is broken down into parts or subparts.
2. d. moving water is not an agent of chemical weathering agent.
The chemical weathering can be caused by the agents like lichens which secretes acid on the rock surface and causes it's disintegration, acid rain and salt water are chemical agents that can cause the disintegration of the rock but moving water will have little influence on the hard rock surface.
3. c. chemical weathering is a process which turns rocks and minerals into new substances. The chemical weathering process brings change in the chemical composition of the rocks due to the action of the weathering agents hence, on disintegration of rocks new substances are formed.