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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

Proteins are made on the what?

Proteins are made on the ribosomes within cells. The ribosomes read the instructions from messenger RNA (mRNA) to assemble amino acids into a specific order, forming a protein molecule.

How does fermentation enable glycosis to continue producing ATP?

During fermentation, cells convert NADH to NAD+ by passing high-energy electrons back to pyruvic acid. This action converts NADH back into the electron carrier NAD+, allowing glycolysis to continue producing a steady supply of ATP.

How does too much consumption of Vitamin C tax the kidneys?

If there is an excess of Vitamin C in the body, then the kidneys must work to remove it from your blood and get rid of it as liquid waste.

However, this does not strain the kidneys nearly as much as taking most drugs would (except for those which strain the liver, instead), so you shouldn't have anything to worry about. Just use reasonable amounts (when you are not sick, 4 to 5 grams should be plenty - even 1-2 grams will probably be enough) and you should be fine.

Why do color change in biuret test?

The copper atoms of Biuret solution (CuSO4 and KOH) will react with peptide bonds, producing a color change.

A deep violet or blue color indicates the presence of proteins and a light pink color indicates the presence of peptides.


http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20101/bio%20101%20laboratory/chemical%20composition%20of%20cells/chemical%20composition%20of%20cells.htm

Which macromolecule contains deoxyribose?

DNA, which stands for deoxyribonucleic acid, is the macromolecule that contains deoxyribose in its structure. Deoxyribose is a sugar molecule that forms the backbone of the DNA double helix.

A punnett square is a shorthand way to show the events that occur during what?

A punnett square is a shorthand way to show the possible genetic outcomes or combinations that can result from a genetic cross between two individuals. It helps predict the probability of specific traits being passed on to offspring.

Show my the pH chart by strong and weak acid?

A strong acid completely dissociates into an H+ ion and an anion.

pH is defined as pH = -log(H+ concentration)

So if you have 0.01 mole hydrochloric acid (HCl) per 1 mole solution, since

each mole HCl contributes a mole of H+ and a mole of Cl-

then you would have H+ concentration of 0.01

pH = -log(0.01) = -(-2) = 2, so the pH = 2

Note that higher H+ concentrations result in lower pH number

What are elements in protein?

Proteins are made up of amino acids, which are the building blocks of protein molecules. There are 20 different amino acids that can be combined in various sequences to form different proteins. These amino acids contain elements such as carbon, hydrogen, oxygen, nitrogen, and in some cases sulfur.

Enzymes have optimal temperatures.most human enzymes have an optimal temperature of about?

The optimal temperature of enzymes in humans is about 37c, the same as the human body's temperature. However, some enzymes work at higher temperatures than 37 but not very high because higher temperatures denatures (destroy) the enzymes.

Is tRNA composed or ribonucleotides?

Yes, tRNA (transfer RNA) is composed of ribonucleotides. Each tRNA molecule is made up of a single RNA strand that is folded into a cloverleaf-like shape, with specific sequences of ribonucleotides that form the coding region and the anticodon loop.

What elements make up proteins?

Carbon, hydrogen, nitrogen, oxygen, and (often) sulfur. All amino acids contain the first four; cysteine and methionine contain sulfur as well. Some proteins have "cofactors" or other unusual groups which can contain just about anything... for example, the protein hemoglobin contains a heme group, which has iron at its center.

What color is Sudan iv?

Sudan IV is a reddish-orange dye that is commonly used in lipid staining techniques.

Why maltose gives sunflower shaped crystals in osazone test?

Maltose forms sunflower-shaped crystals in the osazone test because its structure allows for multiple hydroxyl groups to participate in the reaction with phenylhydrazine. The specific arrangement of these hydroxyl groups on maltose leads to the formation of complex crystalline structures, giving rise to the characteristic sunflower appearance.

What acts as a catalyst in biochemical reactions?

Biochemical reactions are the reactions taking place in the Biological systems. The biological systems contains proteins whose one of the main functions is to catalyse the reactions. The proteins involved in such type of reactions are called as an enzyme. The enzymes catalyse the reactions by lowering the activation energy (energy required to attain the transition state) and helps in the conversion of substrate into the required product.

What are nucleic acids chains made of?

Nucleic acid chains are made of nucleotides, which consist of a sugar molecule, a phosphate group, and a nitrogenous base. These nucleotides are linked together through phosphodiester bonds to form the chains in DNA and RNA molecules.

What is an organism that is able to make its own food?

Organisms that can produce their own food are known as autotrophs. There are two main categories of autotrophs, they are: phototrophs (derive their energy from sunlight) and chemotrophs (derive their energy from the oxidation of a chemical fuel). An example of photoautotroph is a pine tree, an example of a chemotroph is a Methanobacteria.

What do high temperatures do to enzymes?

When enzymes are heated to high temperatures they can denature which means that they sort of fall apart as the bonds which hold the amino acids (the molecule that makes up an enzyme) together. when the enzyme denatures it looses its shape and cannot bind with the substrate (the thing it is trying to break down).

Almost all enzymes are biochemically active at metabolic temperatures, i.e., mid 30's to 38 degrees Celcius. Moreover, the temperature affects directly to the tertiary and secondary structures disrupting hydrogen bonds, van der Walls and ionic forces

Where is an ATP nucleotide made?

ATP nucleotides are primarily synthesized in the mitochondria of cells through a process called cellular respiration. This process involves the breakdown of glucose to produce ATP molecules, which serve as a key energy source for the cell.

What are the reactants and products for alcoholic fermentation?

Feedstock is Glucose.

Reaction is performed by yeast, specifically brewers yeast or sugar yeast.

Product:

ATP Energy, Carbon Dioxide, Water, NAD, alcohol

The fluid inside the cell?

The fluid inside the cell is called cytoplasm, which is a jelly-like substance containing various organelles and molecules essential for the cell's functioning. Cytoplasm plays a role in important cellular processes such as metabolism, transport, and support of organelles.

How is DNA different from RNA?

1. DNA has Thymine as one of its nitrogenous bases while RNA has Uracil instead of Thymine.

2. RNA includes a ribose sugar, while DNA includes a deoxyribose.

3. In terms of their physical structure, DNA is a double helix, while RNA is a single strand.

4. DNA is found only inside of the nucleus because it is too big to pass through the nuclear pores. RNA passes through the nuclear envelope from the nucleus to the cytoplasm.

5. DNA stands for DeoxyriboNucleic Acid while RNA is RiboNucleic Acid.
DNA is the data being stored within the nucleus, RNA is a messenger protein string that is used to create new parts of a cell, since the original DNA copy cannot be moved

Do we get most of our food energy from carbohydrates or proteins?

We get most of our food energy from carbohydrates. Carbohydrates are the body's preferred source of energy and are broken down into glucose to fuel our cells. Proteins are essential for growth and repair of tissues, but they are not as efficient as carbohydrates in providing energy for the body.

Are essential amino acids essential to all organisms?

Yes, essential amino acids are required by all organisms for proper growth, development, and overall health. These amino acids cannot be produced by the organism and must be obtained through the diet.

What are the nutrition we need daily?

Well If you want to know what "Nurtrients" we need daily, you'd be looking at Fiber, Fructose(Natural sugar usually found in fruits) Protein, Some fats(No Saturated fats)

There are no real set "Nutrients" as such that will help you lose weight, it's all about exercise and diet, and I know that gets throw around a lot, but it's the best and healthiest way to lose weight, try and stick to 3 HEALTHY meals a day and if at any point you get hungry, try and thrive off that feeling as your body is burning off small amounts of the accumulated fats you have stored, but of course if you are excercising, some fruit to re fuel you and keep up your metabolism is greatly encouraged!

I have used these methods myself and they were greatly helpful to helpin me lose the weight I needed!

I hope all goes well :)

Explain the function of ribosomes?

rRNA is a massive molecule consisting of two parts; a small section, and a large section. It is between these two sections that the mRNA fits, and into the large selection that the tRNA complexes (with attached amino acids) are taken. rRNA molecules have two main binding sites. When a tRNA molecule is bound, the mRNA molecule moves along one space, and another tRNA molecule binds. When this happens, the amino acids at the ends of the tRNA molecules are very close together, and a peptide bond forms. The mRNA then moves along again and the first tRNA molecule breaks away. This is translation

Read more: How_are_messenger_RNA_transfer_RNA_ribosomal_RNA_different