Heparin reacts to prevent the conversion of prothrombin to thrombin. Heparin:

Biology

1 answer:

Paha777 [63]3 years ago

7 0

Answer:

The correct option is C) Heparin has its effects reversed with the administration of protamine sulfate.

Explanation:

Heparin is an anticoagulant, that is, it works by decreasing the ability of blood to clot, helping to prevent the formation of clots as well as stopping the subsequent extension of any existing clot. Through the neutralization of thrombin, it prevents the conversion of fibrinogen to fibrin, and thus, prevents the formation of a stable clot by inhibiting the fibrin stabilizing factor.

Protamine sulfate is a heparin antagonist, forming with it inactive complexes without anticoagulant effect, that is, the protamine, in the presence of heparin, which is acidic in nature, through the formation of stable salts, cancels the anticoagulant effect of both substances, neutralizing and reversing the anticoagulant action of heparin.

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Asexual reproduction produces _____.

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Asexual reproduction produces a direct clone of the parent.
The other terms are related to sexual reproduction.

Asexual reproduction or asexual reproduction is a mode of reproduction, which (as opposed to sexual reproduction) corresponds to the capacity of living organisms to multiply alone, without a partner, without involving the fusion of two gametes of opposite sexes.

The mechanism of the reproduction is by mitosis, budding or scissiparity.

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Cultures of a bacterial species were incubated on the shelf of a refrigerator (5 C), out on a lab bench top (22 C), on the shelf

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D) Psychrotrophs.

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Psychrotrophs are those bacteria which can tolerate cold temperature and have optimum growth above 15 degree Celsius.
Halophiles prefer high salt concentration.
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Anaerobes grow in absence of oxygen.
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Again the cultures did not show growth at 37 degree celsius so they are not mesophiles.
Maximum growth at 22 degree celsius and a little growth in refrigerator make it obvious that the species is a Psychrotroph.

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Identify the two types of global food food webs and describe how they are connected

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The land and the aquatic are the two types of global food webs

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What is the scientific explanation for the different seasons ?

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Supply the appropriate labels for all numbered parts of the illustration.

tatiyna

Answer:

This diagram depicts the phenomenon of DNA translation in the central dogma of life. Here are the labels

1. RNA strand because it is a sequence of four nucleotide A, G, C, U. It has Uracil, this is why it is RNA. Further, translation takes place when DNA is already transcribed.

2. Ribosome is a machinary for protein formation. This is because it provides right environment to transfer RNA to decode RNA strand into a protein sequence.

3. Amino acid: Each amino acid is carried by a transfer RNA (tRNA). The type of amino acid depends on type of tRNA. All proteins are mostly formed with 20 amino acids and so there are at least 20 tRNA.

4. Polypeptide (protein) chain made up of amino acids: It depicts multiple amino acids, which tRNA carries, and are bonded together through peptide bonds.

5. Transfer RNA (tRNA): tRNA has a complementary sequence to RNA strand and thus it binds with right sequence. It carry an amino acid which is then bonded to another amino acid amino acid to make a polypeptide chain.

Explanation:

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