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2 years ago

What is fermentation ??

Biology

2 answers:

AlexFokin [52]2 years ago

8 0

Answer:

Fermentation is the process in which a substance breaks down into a simpler substance.

coldgirl [10]2 years ago

5 0

Answer:

A chemical breakdown of a substance.

Explanation:

An example would be yeast and bacteria. :))

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Why can an old man not see Clearly

Ratling [72]

Answer:

due to ageing the physical senses and properties like eye's power become weak and slowly it starts to work weak in old people.

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2 years ago

Read 2 more answers

Transdermal patches are intended to release a drug over an extended period of time. Particular care must be used with this type

Nat2105 [25]

Answer:

Answer is Magnetic Resonance Imaging.

Explanation:

A transdermal patch is an adhesive patch which is used medically for delivering doses of medication via the skin into the bloodstream, by simply placing the patch on the skin.

Most of the medications that can be administered through the transdermal patch are pain relievers, nicotine, hormones and contraception to prevent pregnancy.

It has been discovered that, pregnancy patch is 99% effective and last for about 7 days.

Magnetic Resonance imaging, MRI, is used to produce the image of the body, with the use of magnetic and radio wave. It is helpful in diagnosing injury or disease and monitor how well a patient is responding to treatments.

It can be used to detect spinal tumor, cancer , fracture etc. and it is safe and easy to use.

4 0

3 years ago

A hypothesis is a general principle or explanation that is derived from observations. Suppose you make the following observation

mr_godi [17]

Question continued

For each statement below, mark "True" if it would be a valid hypothesis, based on these three observations alone, and mark "False" if it would not be a valid hypothesis.

1. The onion cells I looked at have a nucleus.

2. All onion cells have a nucleus.

3. All cells have a nucleus.

4. Some cells have a nucleus.

5. Only onion cells have a nucleus.

6. If I look at 10 skin cells from my hand, each one will have a nucleus.

Answer:

1. The onion cells I looked at have a nucleus. false - this is not a hypothesis, it is an observation of the evidence you collected.

2. All onion cells have a nucleus. true - this is a valid hypothesis based on the evidence you have gathered from looking at onions

3. All cells have a nucleus. true - this is a hypothesis based on you looking at 3 cell types, several samples of each, and finding that they all have a nucleus

4. Some cells have a nucleus. false - this is not a valid hypothesis. Your evidence so far suggests all cells have a nucleus

5. Only onion cells have a nucleus. - false, you know this to be false as other cell types you analysed had a nucleus

6. If I look at 10 skin cells from my hand, each one will have a nucleus. false - a hypothesis is supposed to be a general principle that is backed up by evidence, this is too specific.

4 0

3 years ago

Be sure to answer all parts.

Aleks04 [339]

Answer:

pH = 3.215

Explanation:

From the given information;

Using the equation for the dilution of a stock solution:

Since moles of C5H5N = moles of HNO3

Then:

$M_{C_5H_5N}\times V_{C_5H_5N}= M_{HNO_3}\times V_{HNO_3}$

$0.0750 M \times 2.65 L = 0.407 M \times V_{HNO_3}$

$V_{HNO_3}= \dfrac{0.0750 M \times 2.65 L}{0.407 M}$

$V_{HNO_3}=488.33 \ mL$

The reaction between C5H5NH and H2O is as follows:

$C_5H_5N^+H + H_2O$ ⇄ $C_5H_5N + H_3O^+$

$Molarity \ of \ C_5H_5N^+H = \dfrac{moles}{addition \ of\ the\ total\ volume}$

$Molarity \ of \ C_5H_5N^+H = \dfrac{0.0750 \ M \times 2.65 \ L}{2.65 \ L + 0.48833 \ L}$

$Molarity \ of \ C_5H_5N^+H = \dfrac{0.19875 \ ML}{3.13833 L }$

$= \ 0.06333\ M$

Now, the next step is to draw out the I.C.E table.

$C_5H_5N^+H + H_2O$ ⇄ $C_5H_5N + H_3O^+$

I 0.06333 0 0

C - x x x

E 0.06333 -x x x

$K_a = \dfrac{10^{-14}}{1.7 \times 10^{-19}} \\ \\ K_a = 5.8824 \times 10^{-6}$

$K_a = \dfrac{[C_5H_5N][H_3O^+] }{[C_5H_5N^+H] } \\ \\ 5.8824 \times 10^{-6} = \dfrac{x^2}{0.06333 - x}$

Assuming x < 0.06333

$x^2 = 5.8824 \times 10^{-6} \times 0.06333$

Then

$x^2 = 3.72532392 \times 10^{-7} \\ \\ x= \sqrt{3.72532392 \times 10^{-7}} \\ \\ x = 6.1035 \times 10^{-4} \ M$

$[H_3O^+] = x = 6.1035 \times 10^{-4} \ M \\ \\ pH = -log (6.1035 \times 10^{-4}) \\ \\ \mathbf{\\ pH = 3.215}$

6 0

2 years ago

Huntington Disease is an autosomal recessive condition. Which percentage

Ksju [112]

Answer:

The options to this question are unclear but the answer is: Hh, Hh, hh, hh i.e Hh (50%), hh (50%).

Explanation:

This question involves a single Gene coding for the possession or not of Huntington's disease in humans. The disease is said to be an autosomal recessive condition i.e. it only happens in a recessive state (hh).

According to this question, when a female with Huntington disease (hh) mates with a male that is heterozygous (Hh) for the Huntington trait, the following gametes will be produced by each parent.

hh - h and h

Hh - H and h

Using these gametes in a punnet square (see attached image), the following genotypic combination of offsprings will be produced.

Hh, Hh, hh and hh

Hh = 50%

hh = 50%

Huntington Disease is Which percentage

shows the genotype probability *

8 0

3 years ago

What is fermentation ??​

What is fermentation ??