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guapka [62]
3 years ago
10

¿Que proteína es fundamental para la fijación del calcio en los huesos?

Biology
1 answer:
just olya [345]3 years ago
5 0

Answer:

En el nivel estructural básico, un hueso está formado por barras de colágeno (una proteína), que están rodeadas por los minerales calcio y fósforo. Mientras que las barras de colágeno proporcionan resistencia, los minerales

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Amoebic dysentery is caused by a parasitic amoeba. It reproduces in the _____.
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4 0
3 years ago
How can no color change in the broth and a conversion to a yellow color both be considered negative results?
masya89 [10]

Answer:

Explanation:

A Pure bacterial culture must be grown in sterile tryptophan or peptone broth for 24–48 hours before performing the test. A sterile environment helps to avoid contamination.

When a test is conducted and it shows the presence of a red or red-violet color in the surface alcohol layer it means the result is positive

But when the colour is yellow it indicate negative reaction due to glucose fermentation.

A deviation from two color may also occur when we have an orange color. This colour change is due to the presence of methyl indole

When there is no color change this indicate No decarboxylase which is an enzyme needed for the fermentation reaction.

Color changes are indicator of how successful the reaction was.

4 0
3 years ago
in 1952 franklin rosalind took a x-ray photograph shown below, which gave the world its first glance at DNA. In studying this ph
nasty-shy [4]
The structure of dna
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3 years ago
The portion of the membrane system In eukaryotic cells that is responsible for making liquids and breaking substance is the
Kisachek [45]
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3 years ago
Match the phrases below, which relate to photosynthesis, to the category into which they best fit.
Mashcka [7]

Answer: Please see answer in explanation column

Explanation:

---light reactions, also called Photolysis reactions.

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6 0
3 years ago
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