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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

How plant hormones help create seedless fruit?

Plant hormones can stimulate the development of fruit without seeds through a process called parthenocarpy. By manipulating the balance of hormones such as auxin, cytokinin, and gibberellins, seedless fruits can be produced. This can be achieved naturally or through genetic modification techniques.

Which of the lipid types are most soluble in water?

Phospholipids and glycolipids are more soluble in water compared to triglycerides due to the presence of a hydrophilic head group, which interacts favorably with water molecules. Triglycerides, being composed mostly of hydrophobic fatty acid chains, are less soluble in water.

Interpret the genetic code to determine the amino acid coded for by the condon ccu?

The link below includes a table of codons and their respective amino acids. You can use this to determine the amino acid coded by any three nucleic acid bases. Read down, then across, then find the one you want from that block of four. In the case of CCU, the amino acid is proline.

What does cell division look like?

INTERPHASE also known as the resting phase. In this phase chromosomes reproduce themselves (are held together by the centromere)and the cell starts to enlarge

PROPHASE - the nuclear membran breaks down, chromosomes shorten,the centrosome splits (each section known as the centriole) and moves towards opposite ends (poles) of the cell. Centrioles start to produce spindle fibers. Nucleus dissapears.

METAPHASE- the chromosomes are pushedto the middle (equator) of the cell by the spindle fibers

ANAPHASE- spindle fibers contrace (pull apart) and the centromere splits which causes the chromosomes to be pulled apart and move to opposite poles

TELEPHASE- the chromosomes reach the poles, the nuclear membrane reforms and the nucleus reappears the spindle fibers dissapear and the cytoplasm pinches in from the sides and eventually splits to form two new cells.

What atoms are in chitin?

Chitin is actually a polymer that can be made up of any number of monomer subunits.

The monomer for chitin is N-acetyl-D-glucosamine, which has a chemical formula of:

(C8H13O5N)n

Therefore, each monomer is made up of 27 atoms.

Why RNA primers are needed during DNA replication and what is their fate?

DNA polymerase cannot begin the synthesis of new DNA.To synthesis a new strand of DNA ,RNA primer is required.The complementary RNA nucleotides,that are added opposite to the single strand of parent DNA are the RNA primer.

When two sugars are combined a water molecule is lost This process is called?

Dehydration Synthesis, also called a condensation reaction, a dehydration reaction or just condensation.

Are A positive blood group a A1 positive blood group same?

Yes it is.

A person with AA positive or AO positive both have blood type A positive.

The designation is because you have one "letter" from each parent - and your "letters" determine what your children can inherit.

What are breaker enzymes?

Breaker enzymes, also known as debranching enzymes, are enzymes that help break down complex carbohydrates like glycogen into simpler sugars. These enzymes are responsible for removing branches or side chains from the carbohydrate molecule, allowing for easier digestion and absorption in the body.

Are the parts of the plant Cell wall living or dead?

The parts of the plant Cell wall are not composed of Cells. The Cell wall is composed of cellulosic strands and many other Bio-Components - their Presence and continued production is an 'indication' that the Bio-Processes that yield Life are actively occurring.

The parts of the plant Cell wall are produced by living Cells and are considered Living Tissues as long as they are being actively Bio-Produced by Living Cells.

Does fructose become glucose when eaten?

through isomerization that happens in the liver. remember glucose and fructose have the same molecular formula. so it's just repositioning of OH elimination of ketone part of the fructose.

What effect does oligomycin have on metabolism?

Oligomycin inhibits ATP synthase in mitochondria, blocking oxidative phosphorylation, which is the process that generates ATP. This results in a decrease in ATP production, leading to a shift in cellular metabolism towards glycolysis and increased dependence on anaerobic respiration for energy production.

How many carbohydrate in chick peas?

Chickpeas contain about 27 grams of carbohydrates per 1 cup serving.

Is gentiobiose a reducing or non-reducing sugar?

Gentiobiose is a non-reducing disaccharide because both of its reducing ends are involved in the glycosidic bond formation between the two glucose units. This means it does not have a free anomeric carbon available to reduce other substances.

Does vitamins help your body use carbohydrates?

Vitamins play a role in helping your body metabolize carbohydrates into energy. For example, B vitamins such as thiamine, riboflavin, and niacin are essential for converting carbohydrates into usable energy. Adequate vitamin intake is important for overall carbohydrate metabolism and energy production in the body.

What is name of hormone injections to gain quick weight?

One hormone injection commonly used to stimulate weight gain is called human growth hormone (HGH). It can increase muscle mass and fat storage in the body when administered in high doses, but its use for weight gain is not recommended due to potential health risks and side effects.

How would dry ice react when more dry ice is added?

When more dry ice is added to a container with existing dry ice, it will sublimate and create more carbon dioxide gas. This can cause an increase in pressure inside the container, potentially leading to a build-up of gas. It is important to handle dry ice with caution in a well-ventilated area to prevent any safety hazards.

What is the hormone antagonists of pth?

Calcitonin is an antagonist to PTH

C cells increase calcitonin secretion due to high blood Ca levels

PTH is secreted due to decrease in Ca level in blood Calcitonin allows osteoclasts to increase bone resorption when blood Ca level decreases.

What are conjugated proteins composed of?

Conjugated proteins are composed of a protein component and a non-protein component called a prosthetic group. The prosthetic group can be a lipid, carbohydrate, metal ion, or other organic molecule that is covalently bound to the protein. This non-protein component is essential for the biological function of the conjugated protein.

What fat soluble vitamin is found in dairy products oily fish and liver?

That is vitamin D. Unfortunately, the amount of vitamin D is very less, than you can guess, in dairy products. The amount is very high in fish liver oil, at times, the amount may be toxic.

MgSO4.7H2O is different from MgSO4?

MgSO4.7H2O, also known as magnesium sulfate heptahydrate, contains seven water molecules in its chemical structure, while MgSO4, also known as magnesium sulfate anhydrous, does not have any water molecules attached. This difference impacts the physical properties and behavior of the compounds when used in various applications.

What type of genetic recombination in bacteria involves DNA transfer by viruses?

Transduction is the type of genetic recombination in bacteria that involves DNA transfer by viruses. In this process, bacteriophages (viruses that infect bacteria) transfer bacterial DNA from one bacterium to another.

Why are lactate and ethanol formed under anaerobic conditions?

Short Answer: To regenerate NAD+ for the continued function of glycolysis.

Detailed Answer: As NADH is formed in glycolysis (2 NADH per glucose), NAD+ must be regenerated to allow continued glycolytic flux (and consequent production of ATP). In the presence of adequate oxygen (i.e. under aerobic conditions), this regeneration takes place predominantly in the mitochondria. Under anaerobic conditions, however, the only way to regenerate NAD+ is through lactate fermentation (e.g. mammals) or ethanol fermentation (e.g. yeast).

Why glucose and fructose form similar osazone crystals?

Glucose and fructose are both reducing sugars with a similar chemical structure, allowing them to react in a similar manner with phenylhydrazine to form osazone crystals. The reaction involves the same functional groups in both sugars, resulting in the formation of structurally similar osazones.

What are the short segments produced in the formation of the 3'-5' strand of DNA called?

During DNA replication, the lagging strand is replicated ~1000 (E. coli) base pairs at a time, forming numerous "Okazaki fragments".

Okazaki fragments form because polymerase is only able to replicate DNA in one direction, but DNA is double stranded, with the strands running anti parallel (in opposite directions). The polymerase waits for a region of DNA to be unwound, and while the leading strand is replicated continuously, on the lagging strand the polymerase waits until a region of single stranded DNA is produced before replicating it. This discontinous replication forms the Okazaki fragments, which can then be joined together by ligase (although a different polymerase enzyme, pol I in E. coli, is needed as well to replace the RNA primers with DNA).