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Biochemistry
Biochemistry is the study of the structure, composition and chemical processes in all living organisms. It covers the structures and functions of various cellular components, including proteins, carbohydrates, nucleic acids, lipids, and other biomolecules.
8,065 Questions
What is the active site of ab enzyme?
It is the region of the enzyme where the activity is taking place, i.e., oxidation, reduction, methylation, phosphorylation, etc. In general terms, the active site is "the door lock" of the enzyme. The active site of the enzyme is a very small region conformed by only three to five amino acids close enough to form a "pocket" somewhere in the tertiary structure of the enzyme. Most of the aminoacids that are part of the active site are polar residues. The reason is that some of them "capture" the substrate while the biochemical reaction is taking place. Once the reaction is complete, the substrate is released from the active site in order to allow the enzyme molecule to receive another sustrate.
Aqueous solutions of formaldehyde are referred to as formalin. "100%" formalin consists of a saturated solution of formaldehyde (this is about 40% by volume or 37% by mass) in water, with a small amount of stabilizer, usually methanol to limit oxidation and polymerization. A typical commercial grade formalin may contain 10-12% methanol in addition to metallic impurities like aluminum (3 ppm), iron (1 ppm) and copper (1 ppm).
How malonate inhibit the conversion of succinate to fumarate?
Malonate is a competitive inhibitor of succinate dehydrogenase, the enzyme responsible for converting succinate to fumarate in the citric acid cycle. Malonate resembles succinate and competes for the active site of succinate dehydrogenase. As a result, malonate binds to the enzyme and prevents succinate from binding, inhibiting the conversion of succinate to fumarate.
Is nitrogen present in starch?
No, the idealized chemical starch itself contains no nitrogen.
Any given sample of starch may contain small amounts due to contamination with other compounds.
What organs are used to synthesize methionine?
The liver is the main organ responsible for synthesizing methionine. It uses the amino acid homocysteine and various cofactors, such as vitamin B6, B12, and folate, to convert homocysteine into methionine. Methionine can also be obtained from the diet through consumption of protein-rich foods.
How many amino acids in interferon?
Interferon is a type of protein that is made up of a chain of amino acids. The exact number of amino acids in interferon can vary depending on the specific type or subtype of interferon. However, on average, a typical interferon protein is composed of approximately 166 to 1669 amino acids.
Oil could not be a compound from which a protein could be directly formed. Proteins are formed from amino acids, which are then linked together to form polypeptides and ultimately proteins. Oil is a different type of organic compound and does not contain the necessary building blocks for protein synthesis.
Which of the following enables much of the world's population to maintain adequate vitamin D status?
Exposure to sunlight enables much of the world's population to maintain adequate vitamin D status. When the skin is exposed to sunlight, it produces vitamin D naturally. However, it is important to note that factors such as latitude, season, time of day, and skin pigmentation can affect the amount of vitamin D produced from sunlight.
The activity of intestinal enzymes would likely decrease or become inhibited if the pH of the small intestine remains at 2. This is because the optimal pH for most intestinal enzymes is around neutral or slightly alkaline (pH 6-8). At a pH of 2, the acidic environment may denature or inactivate the enzymes, reducing their ability to catalyze chemical reactions.
How does heredity affect growth?
Heredity plays a significant role in determining a person's growth potential. Genetic factors inherited from parents influence factors such as height, body structure, and overall growth patterns. However, environmental factors, such as nutrition and overall health, can also influence growth.
What is the role of ADP in respiration?
if by resperation, you mean cellular respiration, then using glucose and oxygen, Cellular Respiration makes carbon dioxide, water, and chemical energy in the form of 36 ATP
How do you extract xylitol from a stevia plant?
Mix together 1 cup very hot distilled water with 1 cup bruised fresh Stevia leaves or 1/2 cup dried crushed Stevia leaves. Put in a jar with a cover. Let it stand for a day, then filter through a coffee filter. Refrigerate, covered, up to a month or freeze up to 6 months. You can dilute it with water if you want.
If you have a Stevia plant, harvest the leaves just as it begins to flower, this is when the plant is at its sweetest. To dry, strip an inch or so of the bottom leaves from the stem, hang upside down in a cool, dry place. When the leaves can be crumbled between your palms, the herb is dry enough. Store away from heat and light.
What does pork contain if it is uncooked or undercooked?
For many years, market pork was fed "slop" besides a conventional pork production diet (corn and rye), and there was a very real chance that the meat contained a parasite that could cause a disease known as trichinosis. Only thorough cooking could destroy it. Today, there is almost nil chance of contracting trichinosis from pork, but partially from habit, and partially because most people do not like the taste of undercooked pork, it is still widely cooked to the "fully white" stage.
There is also the same risk of contracting salmonella from pork that there is from any other processed food product that has been improperly handled, but no more or less. The most common cause of salmonella poisoning is probably poorly handled eggs.
How are hormones important in cellular communication?
By bind with specific receptors, the hormones are able to regulate reproduction, development, energy metabolism, growth, and behavior. The reason why it is important that these functions be activated through hormones (a signaling molecule) is because there is an exact time that these functions need to happen. A caterpillar can't start changing into a butterfly if it hasn't finished its cacoon yet.
What are the earliest signs of vitamin A deficiency?
The most common symptom of vitamin A deficiency is impaired vision.
Vitamin A deficiency can cause blindness, night blindness and also failure to produce tears.
Vitamin C deficiency causes Rickets ( impaired growth, weakening of bones)
osteomalacia in adults ie. softening of bones , bending of spine etc.
How does vitamin D effect weight loss?
When combined with a reduced calorie diet, vitamin D aids weight loss. This is because without it, the body produces more of an enzyme called synthase, which is an enzyme which turns calories into fat, rather than metabolising them.
So it turns out that vitamin D is good for weight loss.
In what form do plants store extra carbohydrates?
It is usually stored as a simple sugar known as glucose. When the food is created, the plant can either consume it right away or store it. If it consumes it, then it is starch.
What hormone causes hair growth in women?
Testosterone
As A Female gets older the gradually produce more Testosterone.... As a Boy gets Older He Produces less Estrogen and More Testoterone.... testosterone works in sync with human growth hormone which is why men are mostly taller and more heavily built. This leads me into believing that men die younger because they have to much testoterone.... the More testosterone the older a person looks also. This also leads me to thinking that human Growth hormon Makes skin Grow even when the Elasticity of skin remains. The More skin The Less Elasticity, The More Wrinkles.
in any case, for a woman to stay hairless they would need less testosterone in order to not grow hairs as quick. This also means that Human Growth Hormone is released through the Day in very small doses. and when you sleep more is released.
Hair growth is increased while your asleep so in order to prevent gair growth you would have to use a cream during the night to weaken hair growth, this weaken the nutrients that allow hairs to grow. Unfortunaty, such hairloss products with out an understanding can increase cancers along the nervous system, just like how botox can travel and inflame nerve cells so can hair reduction kill of those cells. its all connected. The more hair growth usually means healthy cells. This is Because when a cell Dies is Can Become a Hair folicals core. So The Less Cancers exist when hair is produced from a dead cell. Hair cells also protect other healthy cells in the Skin.
Its Best Not To use any Hair weakening Or Reduction creams to reduce hair production, Shaving is the best Way, But When you shave you allow Microscopic germs to enter the Stem thus Causing Infimation in the Skin. So That another reason to wear aftershaves or an Anti-bacterial Cream after shaving. Its all New stuff. But if You manage to question how things work in you body, you can usually find a Healthy solution without causing any problems in the long term.
So, In order to produce less Hair, you need more estrogen but with a substited human growth hormone so you can prevent any cancers. You Can Shave like normal and use an antibacterial cream to prevent Microscopic germs from infecting a cell, Just remember that natural creams from herbal products are best to use as chemically produced creams can have side effects. A natural anti-bacterial would be Oderless Garlic or Onion Juice, This Is Because They Are Hot watery Acids. Onion can Rejuvinate a Dying skin cell by removing dirt and Saturated Fats Around it. Skin Cells Can Be Rejuvinated in that Sence by drinking the Right Amount of water per day, which is Usually 250mls of water every 2 hours per day. Water is activated by heat and swet helps to clean the skin of dirt and fats. But The sun Can Enhance the Waters Cleaning effects Under the skin also. The sun activates The Hydrogen in the Skin and Turns it into A Mild Acid.
Sorry if ive gone off topic. Hope You have enough info.
What are the components of vitamin c?
Vitamin C is needed for the growth and repair of tissues in all parts of your body. It is used to:
- Form an important protein used to make skin, tendons, ligaments, and blood vessels
- Heal wounds and form scar tissue
- Repair and maintain cartilage, bones, and teeth
Two important benEfits of a regular program of physical activity?
Well it's good to get active for at least thirty minutes a day. It increases your ability to have longer lasting breath than getting tired very quickly. Playing in sports also increases your thirst of water so you stay hydrated. Hope this helped. :)
What fruits and vegetables are natural sources of as -well as vitamins?
The fat soluble vitamins:
- Vitamin A: orange/yellow fruits, leafy vegetables, liver, milk
- Vitamin D: fish, eggs, liver, mushrooms and sunlight
- Vitamin E: fruits, vegetables, nuts/seeds
- Vitamin K: leafy green vegetables, egg yolks, liver
- Vitamin C: fruits, vegetables, liver
- Vitamin B1 Thiamine: pork, grains, vegetables, eggs, liver
- Vitamin B2 Riboflavin:diary products, bananas, asparagus
- Vitamin B3 Niacin: meat, fish, eggs, vetables, mushrooms, tree nuts
- Vitamin B5 Pantothenic acid: meat, brocolli, avocados
- Vitamin B6 Pyridoxine: meat, vegetables, tree nuts, bananas
- Vitamin B7 Biotin: liver, peanuts, certain vegetables
- Vitamin B9 Folic acid: leafy vegetables, pasta, bread, cereal. liver
- Vitamin B12 cyanocobalamin:meat & other animal products
