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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

Where in the gel electrophoresis do you find larger fragments?

The larger the fragments the slower it migrates through the gel. Because it is bigger it takes longer to squeeze through the pores of the gel matrix. So the largest gel fragments will be at the top, closest to where the sample started.

What determines how many amino acids is in a polypeptide?

When a gene is transcribed there is a sequence of RNA bases that was copied from the DNA sequence. The RNA sequence can be exactly the same as the DNA or can be modified more in higher organisms by removing the introns if any. Three RNA bases is a codon. Each codon signifies an amino acid. There is an initiation codon and a terminal codon. So the amino acid sequence is determined by the sequence (multiple of 3 RNA bases) of codons between the initiation codon and termination codon.

What substances are directly involved in photosyntehsis?

The main substances directly involved in photosynthesis are carbon dioxide (CO2), water (H2O), and sunlight. These substances are utilized by plants to produce glucose and oxygen through the process of photosynthesis.

What is the food that contains high amount of vitamin zinc?

Zinc is found in oysters, and to a far lesser degree in most animal proteins, beans, nuts, almonds, whole grains, pumpkin seeds and sunflower seeds.

Other food that contain zinc:

  • Beef shanks
  • Crab, Alaska king
  • Pork shoulder
  • Breakfast cereal fortified,
  • Chicken leg, roasted
  • Pork tenderloin, cooked
  • Lobster, cooked
  • Baked beans
  • Cashews, dry roasted
  • Yogurt, fruit, low fat
  • Raisin bran
  • Chickpeas
  • Cheese, Swiss
  • Almonds, dry roasted
  • Milk
  • Chicken breast, roasted
  • Cheese, cheddar or mozzarella
  • Kidney beans, cooked
  • Peas, boiled
  • Oatmeal, instant
  • Flounder or sole

What is Dna replication said to be?

Based on how it occurs, it is said to be 'semi-discontinuous' replication.

What is the chemical use to cause polyploidy?

Colchicine is commonly used to induce polyploidy in plants. It disrupts microtubule polymerization, leading to the formation of cells with double the normal chromosome number. This can result in increased genetic variation and potential for breeding new varieties with desirable traits.

Which of these proteins in mammals show only primary and secondary structures?

Collagen and keratin are examples of proteins in mammals that primarily exhibit only primary and secondary structures. Collagen is known for its triple helix structure, while keratin is a fibrous protein that forms alpha-helices and beta-sheets.

What is chemosynthesis and how is it different from photosynthesis?

Chemosynthesis is the process by which organisms use chemical energy to produce food. This is different from photosynthesis, which is the process by which green plants and some other organisms use sunlight to convert carbon dioxide and water into glucose for energy. Chemosynthesis does not require sunlight and can occur in environments where light is not available, such as deep-sea hydrothermal vents.

Does Benedict's solution reacts with proteins?

Benedict's solution reacts with reducing sugars, not proteins. It is commonly used in biochemical tests to detect the presence of reducing sugars such as glucose. Proteins do not typically react with Benedict's solution.

What hormone is the most important stimulus of epiphyseal plate activity?

The growth hormone is the most important stimulus of epiphyseal plate activity, as it is responsible for stimulating the growth of bones during childhood and adolescence. It acts on the epiphyseal plates to promote bone growth and elongation.

Is calcium bentonite clay and di tri octahedral smectite the same?

No, calcium bentonite clay and di tri octahedral smectite are not the same. Calcium bentonite is a type of clay that contains calcium ions and is commonly used in skincare and wellness products. Di tri octahedral smectite refers to a group of crystalline minerals with specific structural properties, and it is sometimes used in industrial applications or as an additive in certain products, but it is not the same as calcium bentonite clay.

Where can you buy saturated calomel reference electrode?

Saturated calomel reference electrodes can be purchased from scientific supply companies, online retailers that specialize in laboratory equipment, or directly from manufacturers of electrochemical instrumentation. It is important to ensure that the supplier is reputable and provides authentic products to maintain the accuracy and reliability of your measurements.

How do you pronounce hormones?

Hawr-mohn

It sounds like

Hor=Whore

Mone=Moan(like male or females moan during sexual intercourse)

What is the function of the LTH hormone?

At puberty, the hypothalamus produces GnRH (gonadotropin releasing hormone.) GnRH then stimulates production of LH (leutinizing hormone) and FSH (follicle stimulating hormone)which are released by the pituitary gland. In males, LH causes secretion of testosterone and other androgens by the interstitial cells (located in between the seminiferous tubules in the testies.) Testosterone,among others duties, aids FSH in the stimulation of spermatogenesis (production of spermatozoa) and promotes the functional maturation of spermatozoa.

How many oxygen atoms are needed to start photosynthesis reaction?

In the first step of photosynthesis, which is light-dependent, two water molecules are needed to start the reaction. Each water molecule contains two oxygen atoms, so a total of four oxygen atoms are needed.

What are biochemical parameters?

Biochemical parameters are measurable components in the body that provide information about its physiological functions. These parameters can include levels of proteins, enzymes, hormones, and other molecules that help diagnose and monitor health conditions. They are often tested through blood, urine, or other bodily fluids.

Which plant hormones causes fruit to ripen?

Ethylene is the plant hormone responsible for fruit ripening. It is a gaseous hormone that acts as a signal to trigger the ripening process in fruits, leading to changes in color, texture, and flavor. Ethylene is commonly used in the food industry to ripen fruits artificially.

Where does photosynthesis occur in a venus fly trap?

Photosynthesis in a Venus flytrap occurs in the chloroplasts of its cells, which are mainly concentrated in the green parts of the trap, like the lobes. These chloroplasts contain chlorophyll that enables the plant to capture sunlight and convert it into energy to make food.

How many amino acid has more than one chiral centers?

An amino acid can have a maximum of two chiral centers, but they do not all have two chiral centers. For example, threonine and isoleucine are amino acids that have two chiral centers.

Which statement is true simple sugars are made of polysaccharides glycerol is made of fatty acids DNA is made of nucleotides amino acids are made of proteins?

Statement three is true; glycerol combined with fatty acids become glycerides, polysaccharides are comprised of simple sugar monomers and proteins are composed from a pallette of primarily twenty amino acids.

How many molecules are there in 95.2 g of water?

To find the number of molecules in 95.2 g of water, first calculate the number of moles using the molar mass of water (18.015 g/mol). Next, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules. So, (95.2 , \text{g} \times \frac{1 , \text{mol}}{18.015 , \text{g}} \times 6.022 \times 10^{23} , \text{molecules/mol}) gives you the number of molecules.

Why would Saccharomyces cerevisiae extract be used in an eye cream?

Saccharomyces cerevisiae extract contains antioxidants, vitamins, and amino acids that can help improve skin hydration, firmness, and elasticity. When used in an eye cream, it may help reduce the appearance of fine lines and wrinkles, brighten the skin, and protect against damage caused by environmental stressors.