D- lacks a nucleus.............
Carbohydrates are a macronutrient whose main function is to provide energy to the body. All digestible forms of carbohydrates give 4 calories per energy of energy. The fiber, starch, and glycogen are complex carbohydrates. Simple carbohydrates can be monosaccharides, like glucose and galactose or disaccharides like lactose and maltose.
Complex carbohydrates include polysaccharides. Starch comprises of chains of glucose molecules. Some chains of starch are straight and are harder to digest. Another starch is much easier to digest and has branching chains.
Dietary fiber comprises soluble and insoluble types and both possess essential benefits like minimizing the risk of heart disease, constipation, and obesity. Soluble fiber also helps to reduce the threat of diabetes.
Glycogen is a highly branched polysaccharide created by a procedure known as glycogenesis and is stored in the liver and muscles for later use. Carbohydrate in the diet is said to spare protein from being used to provide energy for fuel for the cells.
It is changeable, in science, there can always be new discoveries that expand our knowledge
Answer:
Adenosine triphosphate (ATP) is a chemical compound cells use to store and release energy. An ATP molecule consists of adenine, the sugar ribose, and three phosphate groups.
The answer for the first question is option b. , that is sporophyte.
The answer for the second question is option a. , that is a sprouting acorn.
(I am really not sure about these answers, but still I tried my best , so that I can help you.)