Bromelain separates the amino acids in the enzymes that cause browning by breaking the peptide bonds.
Explanation:
Enzymes speed up chemical reactions by lowering activation energy.
An enzyme from the stem of pineapple is called Bromelain also known as cysteine protease. It is obtained by cutting pineapple and filtering the juice of it.
Bromelain extract is a mixture of protein-digesting enzymes and several other substances in smaller quantities.
The monomers in Bromelain are numerous sub units of Sulfhydryl proteases. A free sulfyhydryl group of a cysteine amino acid side chain is required for function. By seperating proteins from amino acids the reaction that breaks up enzymes occurs.
Answer:
Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. For this reason, foil is used extensively in food and pharmaceutical packaging. Aluminum foil is also used to make aseptic packaging. This type of packaging enables storage of perishable goods without refrigeration.
Explanation:
Answer:
Explanation:
When group 7 elements react , their atoms gains one electron into their highest occupied energy level ( outer shell) to form single negative - charged ion .
As you move down the group , the outer shells get increased i.e an additional electron shell is added thereby increasing the atomic radius of the atom. The electrons in the outer shell move further away from the nucleus as we go down the group .
Therefore the force of attraction between the shells and nucleus is decreased .
This makes attracting an extra electron difficult . And so ability of the atom to attract electron to fill the outermost shell reduces which means the reactiveness of the atom reduces.
Answer:
A heterogeneous mixture is a mixture of two or more chemical substances (elements or compounds). Examples are: mixtures of sand and water or sand and iron filings, a conglomerate rock, water and oil, a portion salad, trail mix, and concrete (not cement).
Explanation:
Answer:
c. protons and neutrons are found in the nucleus
d. protons and neutrons have approximately the same mass
Explanation:
There are three fundamental particles within an atom which are the protons, neutrons and electrons.
The protons are the positively charged particles within an atom
Neutrons do not carry any charges
Electrons are the negatively charged particles.
- Both the protons and neutrons occupy the tiny nucleus at the center of the atom.
- The electrons moves round the nucleus through the orbital space.
- The mass of the protons and neutrons are similar and are assumed to be approximately the same.
