The Smooth (ER) endoplasmic reticulum
Answer: Option E.
The cytosolic face of the plasma membrane.
Explanation:
Endoplasmic recticulum is a membranous organelles in cytoplasm that help in synthesis,transport and modifications of proteins. Proteins are transported to golgi apparatus while some remain in endoplasmic reticulum. Proteins are transported from ribosomes on rough endoplasmic recticulum to rough endoplasmic recticulum lumen which is the site of protein modifications, then to golgi aparathus.
The answer is B. Digestive and cardiovascular
While both carbohydrates and lipids are made up of carbon, hydrogen and oxygen there are several differences:
1. Carbohydrates are chains of 2 or more carbon atoms. These can be very lengthy (like long cellulose chains of glucose units). They have many polar OH groups (e.g. glucose - C6H6O6). Most carbohydrates are hydrophilic and are soluble in water because of their polar OH groups. They are not necessarily sugars nor are they necessarily sweet. They are also important components of DNA, RNA and ATP.
2. Lipids are more diverse in their chemistry. They generally have a polar region at one end (this end attracts water) and a large non polar hydrocarbon region that repels water. Lipids don't dissolve in water and instead clump together with their hydrocarbon regions on the interior. Lipids include oils, fatty acids, waxes, steroids and hormones.
The enthal difference between the reactants and the products is equal to the amount of energy released to the surroundings. ... A reaction in which energy is absorbed from the surroundings is called an endothermic reaction. In endothermic reactions the enthalpy of the products is greater than the enthalpy of the reactants.
