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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
Vitamin B itself is not an antioxidant, but some B vitamins like vitamin B2 (riboflavin) and vitamin B3 (niacin) have antioxidant properties by helping to combat oxidative stress in the body.
Does your hair fall out from lack of vitamin D?
A number of things can cause excessive hair loss. For example, about 3 or 4 months after an illness or a major surgery, you may suddenly lose a large amount of hair. This hair loss is related to the stress of the illness and is temporary.
Hormonal problems may cause hair loss. If your thyroid gland is overactive or underactive, your hair may fall out. This hair loss usually can be helped by treatment thyroid disease. Hair loss may occur if male or female hormones, known as androgens and estrogens, are out of balance. Correcting the hormone imbalance may stop your hair loss.
Many women notice hair loss about 3 months after they've had a baby. This loss is also related to hormones. During pregnancy, high levels of certain hormones cause the body to keep hair that would normally fall out. When the hormones return to pre-pregnancy levels, that hair falls out and the normal cycle of growth and loss starts again.
Some medicines can cause hair loss. This type of hair loss improves when you stop taking the medicine. Medicines that can cause hair loss include blood thinners (also called anticoagulants), medicines used for gout, high blood pressure or heart problems, vitamin A (if too much is taken), birth control pills and antidepressants.
Certain infections can cause hair loss. Fungal infections of the scalp can cause hair loss in children. The infection is easily treated with antifungal medicines.
Finally, hair loss may occur as part of an underlying disease, such as lupus or diabetes. Since hair loss may be an early sign of a disease, it is important to find the cause so that it can be treated.
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Why must urine be centrifuge for microscopic?
Urine must be centrifuged before microscopic examination to separate any cells, bacteria, and other solid components from the liquid portion, or supernatant. This allows for a clearer view of the cells and other elements present in the urine sample under a microscope, making it easier to detect abnormalities or infections.
Is operon the sequence of bases on a gene that does not code for protein?
operon is a group of genes regulated by a single promoter and operator. . . generally all the genes (structural genes of a particular operon) regulate a specific metabolic pathway. . (eg : lac operon in bacteria; where 3 genes are regulated by a single promoter sequece which help in the catabolism of lactose). . . if you have any doubts mail me at vegi.chaitanya@gmial.com
Is vitamin d 25-hydroxy payable by medicare?
Yes, for any of these diagnoses:
042 Human immunodeficiency virus (HIV) disease
252.00 Hyperparathyroidism, unspecified
252.01 Primary hyperparathyroidism
252.02 Secondary hyperparathyroidism, non-renal
252.08 Other hyperparathyroidism
252.1 Hypoparathyroidism
263.0 Malnutrition of moderate degree
268.0 Rickets active
268.2 Osteomalacia unspecified
268.9 Unspecified vitamin D deficiency
275.3 Disorders of phosphorus metabolism
275.41 Hypocalcemia
275.42 Hypercalcemia
277.00 Cystic fibrosis without meconium ileus
277.01 Cystic fibrosis with meconium ileus
277.02 Cystic fibrosis with pulmonary manifestations
277.03 Cystic fibrosis with gastrointestinal manifestations
277.09 Cystic fibrosis with other manifestations
345.00 - 345.91 Generalized nonconvulsive epilepsy without intractable epilepsy - Epilepsy unspecified with intractable epilepsy
555.0 - 558.9 Regional enteritis of small intestine - Other and unspecified noninfectious gastroenteritis and colitis
579.0 - 579.9 Celiac disease - Unspecified intestional malabsorption
585.3 Chronic kidney disease, stage III (moderate)
585.4 Chronic kidney disease, stage IV (severe)
585.5 Chronic kidney disease, stage V
585.6 End stage renal disease
588.81 Secondary hyperparathyoidism (of renal organ)
733.00 Osteoporosis unspecified
733.01 Senile osteoporosis
733.02 Idiopathic osteoporosis
733.03 Disuse osteoporosis
733.09 Other osteoporosis
733.90 Disorder of bone and cartilage unspecified
V45.86 Bariatric surgery status
V58.65 Long-term (current) use of steroids
Role of ethidiumbromide in gel electrophoresis?
Ethidium bromide is commonly used in gel electrophoresis to visualize DNA under UV light. It intercalates between DNA base pairs, causing the DNA to fluoresce when exposed to UV light. This allows researchers to see and analyze DNA bands in the gel.
Does blue colour release calming hormones to the brain?
There is some evidence to suggest that certain shades of blue can have a calming effect on the brain by lowering heart rate and blood pressure. However, the impact may vary depending on individual preferences and cultural associations with the color blue. It is important to note that the effects of color on emotions are complex and can be influenced by a variety of factors.
What chemical or liquid will have a reaction if it comes in contact with petroleum?
Petroleum can react with strong oxidizing agents like chlorine or fluorine to form toxic fumes or even explosive compounds. It can also be degraded by certain bacteria through a process known as biodegradation.
What statement correctly reflects Simmel's understanding of the dyad?
Simmel believed that the dyad, or social interaction between two individuals, is the simplest and most intimate form of social relationship. He argued that the dyad is characterized by intense mutual influence between the two participants, leading to a sense of equality but also potentially heightened conflicts.
Why Molisch's test called group test?
Molisch's test is known as a group test because it can detect the presence of any carbohydrate in a sample, regardless of the specific type of carbohydrate. This test relies on detecting the presence of reducing sugars, which are a common feature of most carbohydrates, making it a broad test for the presence of carbohydrates in general.
What is the radicle part of a flower?
The radicle is actually the embryonic root of a plant, not a part of a flower. It is the first structure to emerge from a seed during germination and develops into the main root system of the plant. Flowers do not have radicles; they are reproductive structures involved in the plant's sexual reproduction.
Analysis of DNA fragments in gel electrophoresis involves what?
Analyzing DNA fragments in gel electrophoresis involves separating the fragments based on size through an electric field in a gel matrix, typically agarose or polyacrylamide gel. The fragments are then visualized by staining with a DNA-intercalating dye and comparing their migration distances to a DNA ladder of known sizes. This allows for determining the size of the DNA fragments and assessing their quantity in the sample.
Where are the enzymes of photosynthesis?
The enzymes involved in photosynthesis are primarily found in the chloroplasts of plant cells. These enzymes are responsible for catalyzing the chemical reactions that convert sunlight, water, and carbon dioxide into energy in the form of sugars.
How do you distinguish different amino acids?
By their side chains. All amino acids have this structure:
HOOC- C - NH2
Attached to that middle C is the side chain. They can have many different properties-
They can be aromatic, polar, lipophilic, basic, acidic, Sulfur containing, among others
There are 20 amino acids inside the human body, each has a different structure and function, due to its properties.
What is the function of micro centrifuge tube?
Microcentrifuge tubes are used to hold small volumes of liquid during centrifugation, storage, or transport of samples in laboratory settings. These tubes are designed to withstand high speeds and forces generated during centrifugation without leaking or breaking. They are commonly used in molecular biology, biochemistry, and other research applications.
What are the differences between simple protein and conjugated protein?
Simple proteins hydrolyse to yield only amino acids eg: the albumens , globulins.
Conjugated proteins will yield phosphate groups or other residues such as nucleic acids in addiction to amino acids eg: glycoproteins, lipoproteins.
Vitamin d is produced within the human body or it takes from sunlight?
Vitamin D is primarily produced in the skin when it is exposed to sunlight. When ultraviolet B (UVB) rays from the sun hit the skin, a chemical reaction converts a substance in the skin into vitamin D3. Only a small amount of vitamin D comes from dietary sources like fortified foods and supplements.
No. Vitamin C and other vitamins will not substitute for birth control.
What is the danger of over dosage of vitamin C?
AS FAR AS VIT. "C" IS CONCERNED, mega doses are a waste. Your body does not store up vit. c , it uses what it needs right then, and then the rest of the vit. C is expelled from your body through your kidneys. So a good portion ends up in the toilet!!
By which event is an ion transmembrane gradient dissipated?
The ion transmembrane gradient is dissipated through the process of ion diffusion, where ions move from areas of high concentration to areas of low concentration. This equilibrium of ion concentration across the membrane also leads to the dissipation of the gradient.
mRNA was discovered in the 1960s by scientists François Jacob, Jacques Monod, and Sydney Brenner. They identified mRNA as the intermediary molecule between DNA and protein synthesis during gene expression.
Does water molecule have sphere shape?
No, a water molecule does not have a spherical shape. It has a bent, angular structure due to the arrangement of the two hydrogen atoms and one oxygen atom bonded together. This bent shape gives water its unique properties such as polarity and the ability to form hydrogen bonds.
What was used before gel electrophoresis?
Before gel electrophoresis, techniques like paper electrophoresis and agarose slab gel electrophoresis were used for separating and analyzing DNA or proteins. These methods were less efficient and had lower resolution compared to gel electrophoresis.
Does cytosine contain a purine?
DNA does in fact contain cytosine. This is one of the 4 nucleic acids that are found inside of DNA.
What does the vitamin iron do in the body?
Iron is an essential mineral that is crucial for the production of hemoglobin, a protein in red blood cells that carries oxygen from the lungs to the rest of the body. Iron also plays a role in transferring oxygen to muscles and helps in the production of certain hormones. A deficiency in iron can lead to symptoms such as fatigue, weakness, and decreased immunity.
