Which MOLECULES do cells need to get in order to function properly?

What are some milk products made from lactic acid fermentation?

Nadusha1986 [10]

The presence of lactic acid, produced during the lactic acid fermentation is responsible for the sour taste and for the improved microbiological stability and safety of the food. This lactic acid fermentation is responsible for the sour taste of dairy products such as cheese, yoghurt and kefir.
1.Western world: yogurt, sourdough breads, sauerkraut, cucumber pickles and olives.
2.Middle East: pickled vegetables.
3.Korea: kimchi (fermented mixture of Chinese cabbage, radishes, red pepper, garlic and ginger)
4.Russia: kefir.
5.Egypt: laban rayab and laban zeer (fermented milks), kishk (fermented cereal and milk mixture)
6.Nigeria: gari (fermented cassava)
7.South Africa : magou (fermented maize porridge)
8.Thailand : nham (fermented fresh pork)
9.Philippines : balao balao (fermented rice and shrimp mixture)
Lactic acid fermentation also gives the sour taste to fermented vegetables such as traditionally cultured sauerkraut and pickles. The sugars in the cabbage are converted into lactic acid and serve as a preservative.

8 0

3 years ago

Which type of orbital will be occupied by the electrons of highest energy for the Si^4+ ground-state ion? 1. 2s 2. 3p 3. 4s 4. 4

Shtirlitz [24]

Answer: Option (5) is the correct answer.

Explanation:

It is known that the ground state electronic configuration of silicon is $[Ne]3s^{2}3p^{2}$ .

And, we know that when an atom tends to gain an electron then it acquires a negative charge and when an atom tends to lose an electron then it acquires a positive charge.

As $Si^{4+}$ has a +4 charge which means that it has lost 4 electrons. Hence, the electronic configuration of $Si^{4+}$ is $1s^{2}2s^{2}2p^{6}$ .

According to the Aufbau principle, in the ground state of an atom or ion the electrons fill atomic orbitals of the lowest energy levels first, before filling the higher energy levels.

As 2p orbital is filled after the filling of 2s orbital.

Therefore, we can conclude that 2p orbital will be occupied by the electrons of highest energy for the $Si^{4+}$ ground-state ion.

4 0

3 years ago

What could be the fourth quantum number of a 1s^2 electron be?

Bumek [7]

The forth quantum number is Spin quantum number and the value of Spin Quantum Number of 1s² will be +1/2. Therefore, the correct option is (B) option

<h3>What is Spin Quantum Number ?</h3>

It describes the orientation of the electron spin (rotation) in space.

In the given case of 1s² configuration,

since, the Quantum numbers are known as:

Principal quantum number (n) which cannot be zero.

The allowed values of n are therefore 1, 2, 3, 4, and so on.

Angular quantum number (l) is able to be any integer between 0

and n-1.

Therefore, for example, If n = 1, l will be 0,

If n = 2, l can be either 0 or 1.

Magnetic quantum number (m) is able to be any integer between -l and +l.

Therefore, for example, If l = 3, m can be either -3 to +3.

Spin Quantum Number (ms): Ms = +½ or -½ accounts for the orientation of the spin axis of an electron as it is able to spin in only one of two directions.

Thus, since the fourth quantum number is Ms, spin, we infer that the answer is (B) option ie, Ms = +1/2 because it represents the positive spin on 1s².

Learn more about Quantum Number Here ;

brainly.com/question/15325270

#SPJ1

6 0

2 years ago

Which sub-atomic particle is NOT found at the center of the atom?

Ostrovityanka [42]

All the positive charge of an atom is contained in the nucleus, and originates from the protons. Neutrons are neutrally-charged. Electrons, which are negatively-charged, are located outside of the nucleus.

8 0

4 years ago

Read 2 more answers

Which element consists of positive ions immersed in a "sea" of mobile electronsa) sulfur

Margarita [4]

Hello
Sulfur is the answer

5 0

3 years ago