The terminal part of the small intestine, after the duodenum and the jejunum, is the ileum. It is the last part before the large intestine begins.
The terminal portion of the small intestine is known as the Ileum. It is part of the small intestine that comes after the jejunum and just before the large intestine. The small intestine is divided into three sections: The duodenum, the jejunum, and finally the ileum. The duodenum is the first section, originally connected to the stomach via the pyloric sphincter, followed by the jejunum, and ending with the ileum.
The terminal portion of the small intestine is known as the ileum. It is the longest portion of the small intestine, extending from the jejunum to the large intestine. The ileum is responsible for the absorption of nutrients, including vitamins, minerals, and bile salts.
#SPJ6
Answer:
A nucleotide is composed of three components: a nitrogenous base, a sugar molecule, and a phosphate group.
Explanation:
1. Nitrogenous Base: There are two types of nitrogenous bases found in nucleotides: purines and pyrimidines. Purines include adenine (A) and guanine (G), while pyrimidines include cytosine (C), thymine (T), and uracil (U) in RNA. These nitrogenous bases have different pKa values: adenine and guanine have pKa values around 3.5, while cytosine, thymine, and uracil have pKa values around 4.5.
2. Sugar Molecule: The sugar molecule in a nucleotide is either deoxyribose (in DNA) or ribose (in RNA). Deoxyribose and ribose are both five-carbon sugars. Deoxyribose has a hydrogen atom at the 2' carbon position, while ribose has a hydroxyl group (OH) at the same position. The pKa of the sugar molecule is not relevant to the connection between nucleotides.
3. Phosphate Group: The phosphate group consists of a phosphorus atom bonded to four oxygen atoms. One oxygen is connected to the 5' carbon of the sugar molecule, forming a phosphodiester bond. The pKa of the phosphate group is around 1.
The three components of a nucleotide connect to each other through covalent bonds. The nitrogenous base is connected to the 1' carbon of the sugar molecule, forming a glycosidic bond. The phosphate group is connected to the 5' carbon of the sugar molecule through a phosphodiester bond. This connection repeats in a linear fashion, forming a chain of nucleotides. In DNA, this chain forms the double helix structure through hydrogen bonding between complementary nitrogenous bases (A with T and G with C), while in RNA, the chain remains single-stranded.
To summarize, the three components of a nucleotide are the nitrogenous base, the sugar molecule, and the phosphate group. The relevant pKa values are around 3.5 for adenine and guanine, around 4.5 for cytosine, thymine, and uracil, and around 1 for the phosphate group. These components connect to each other through glycosidic bonds between the base and the sugar, and phosphodiester bonds between the sugar and the phosphate group.
b. gender
c. species
d. temperature
B. Places of worship
C. Trading posts
D. Military encampments
The correct answer is option B. Places of worship.
The Chavin culture is one of the ancient civilizations, which is extinct now. The Chavin buildings were built by the people living that era. These buildings are the archaeological sites, and many artefacts are found in these buildings. The buildings are now used as a place of worship now a days. The buildings are found in Peru, and thought to be constructed around 1200 BC.