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2 years ago

List the functions of proteins in the text area below.

Biology

2 answers:

ludmilkaskok [199]2 years ago

5 0

Movement. Contraction of muscles requires the proteins called Actin and Myosin.

Structure. Hair and nails are made of a protein called keratin. ...

Transport. Red blood cells contain the protein Hemoglobin that cary oxygen around the body.

Protection. ...

Communication. ...

Controlling.

Anuta_ua [19.1K]2 years ago

3 0

Proteins participate at almost all levels of cellular processes among their main functions:

1- Maintenance of oncotic pressure: prot. are macromolecules that hydrate in the plasma and exert a PO retaining water in the vascular medium, all prot. mainly albumin

2- Buffer role: all prot. Plasma acts as a buffer because of their hydrophobic character thus participating in the regulation of acid-base balance

3- Transport function Albumin.Tyroxine binding protein (TBP), transferrin, apoproteins..etc.

4- Enzymes and coenzymes: renin, orosomucoid (coenzymes of LPL)

5- Role in coagulation and fibrinolysis: fibrinogen, thrombin. antithrombin

6- Role in immunity: Ig (lgA JgG.lgM) and complement proteins

7- Role in the allergic: IgE and complement fractions

8- Role in inflammation: α1 antitrypsin, orosomucoides .cerulioplasmin, cytokines, CRP

9- Hormonal role: insulin, glucagon, pituitary stimulins (TSH, FSH, LH)

10- And finally a structural role (such as actin or tubulin that participate in the architecture of the cell, the keratin that makes up the hair);

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Alkaptonuria is an infrequent autosomal recessive condition. It is first noticed in newborns when the urine in their diapers tur

Arisa [49]

Answer:

See the answer below

Explanation:

Let the disorder be represented by the allele a.

Since the disease is an autosomal recessive one, affected individuals will have the genotype aa and normal individuals will have the genotype Aa or AA.

Since the four adults are carriers, their genotypes would be Aa.

Aa x Aa

Progeny: AA 2Aa aa

Probability of being affected = 1/4

Probability of being a carrier = 1/2

Probability of not being affected = 3/4

(a) The chance that the child second child of Mary and Frank will have alkaptonuria = 1/2

(b) The chance that the third child of Sara and James will be free of the condition = 3/4

(c)

(d) If someone has no family history of the disorder, their genotype would be AA.

AA x aa

4 Aa

The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history = 0

(e)

(f) The chance that a child with alkaptonuria will have an offspring with alkaptonuria if the child's mate has no family history = 0

5 0

2 years ago

A Xw+m+Xwm female was mated to a XwmY male. Out of 1000 total F1 progeny there were 230 flies that were otherwise wild type with

deff fn [24]

In order to calculate the distance between two alleles/genes that are found in the same chromosome, we need to know how often crossing-over happened (recombination frequency). We know from the text that white eyes were linked to miniature wings and that wild type eyes were linked to wild type wings, so any phenotype that's contrary to these parent combinations are a result of crossing-over. We know then that 230 flies + 240 flies were a result of such recombination. To calculate the recombination frequency we only need to divide these flies (total of recombinant flies) by the total of flies in the offspring and turn it into percentage.
$\frac{230+240}{1000}$ =0.47
0.47*100%=47%
47 map units is the distance between the genes for eye color and wing length.

7 0

2 years ago

After five trials, Ronald and Maria calculated the experimental density of aluminum to be 2.54 g/cm3. If the actual density of a

RideAnS [48]

Percent error is a statistical tool used for evaluating precision. It is expressed as:

Percent error = | (experimental value - theoretical value) / theoretical value | x 100%

Experimental value represents the calculated value while the theoretical value represents the known value. A percent error value which is approaching zero means that your experimental value is close to the known value. Which can possibly mean that you have precise measurements. Calculations are as follows:

Percent Error = | (2.54 - 2.70) / 2.70 | x 100 =5.93%

Thus, the answer is b. 5.93%.

3 0

2 years ago

On the graph to the right, indicate which curve corresponds to each type of chlorophyll. Which curve corresponds to chlorophyll

vladimir1956 [14]

Answer:

First question - Green curve

Second question - Red curve

Explanation:

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2 years ago

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What is the main function of each part of the compound microscope

natulia [17]

Answer:

Body tube (Head): The body tube connects the eyepiece to the objective lenses. Arm: The arm connects the body tube to the base of the microscope. Coarse adjustment: Brings the specimen into general focus. Fine adjustment: Fine tunes the focus and increases the detail of the specimen

Explanation:

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2 years ago