B. tracheal tube
C. gill slits
2. what is the respiratory structure of a spider?
A. gills
B. book lungs
C. tracheal tube
D. gill slits
Proteins and complex carbohydrates are part of the four major macromolecular groups and play crucial roles in our body functions and energy provision. They are essential in our diet, assisting in maintaining connective tissue, aiding blood clotting, and providing energy for our bodies.
Proteins and complex carbohydrates are both part of the four major macromolecular groups, which also involve lipids and nucleic acids. These macromolecules are vital to the human diet, providing fuel for the body, and undergo digestion and energy production processes. Carbohydrates can be both complex, like starch and glycogen or simple sugars like glucose and fructose. These sugars are key contributions to ATP production in cells, and glucose specifically, is controlled by a variety of endocrine mechanisms to regulate its presence in the bloodstream. The excess glucose is stored as glycogen in the liver and skeletal muscles, or instead transformed into fat in adipocytes.
Proteins along with carbohydrates are also essential in the maintenance of connective tissue and assisting in blood clotting. This prominence of these macromolecules in the diet is why athletes often 'carb-load' before engaging in major competitions, allowing their bodies to possess enough energy to compete at such high levels. Foods like grains, fruits, and vegetables are all natural carbohydrate sources, providing us with the glucose our bodies require. Therefore, proteins and complex carbohydrates showcase inherent essentiality within the human diet, playing significant roles in body function and providing necessary energy for activities.
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amylase and proteases
lipases
amylase, proteases, lipases, nucleases
Nucleases are the enzymes that are unique to the pancreas. These are enzymes which break down nucleic acids DNA and RNA into nucleotides. When these nucleotides reach the ileum, they are further degraded or digested into sugars, bases and phosphates. These nucleases are known as DNAase and RNAase
Other pancreatic enzymes such as amylase and protease are also produced by other digestive organs such as the salivary glands and the small intestine respectively. However no other digestive organ has been known to produce nucleases apart from the pancreas.
Nucleases are of two main types, namely exonucleases which cut off the end of a nucleotide and endonucleases which will cut out certain nucleotide sequences right in the middle of a nucleic acid.
The enzymes that are secreted only by the pancreas are amylase, proteases, lipases, and nucleases. Therefore, option (4) is correct.
Digestive organs include the pancreas. It secretes digestive enzymes into the small intestine to facilitate food digestion. Amylase breaks starches into sugar molecules. Trypsin and chymotrypsin break proteins into amino acids. Fatty acids and glycerol from lipases aid fat breakdown and absorption.
Finally, nucleases break down DNA and RNA into nucleotides. The pancreas exclusively produces and secretes these enzymes to aid small intestine digestion and absorption. Therefore, option (4) amylase, proteases, lipases, and nucleases is correct.
Learn more about pancreas, here:
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tissue in the hollow part of the bone
spongy bone
strong, dense outer layer of a bone
bone marrow
lightweight, inner layer of a bone that
contains many small spaces
Intro
Done
Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.