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Otrada [13]
2 years ago
12

Please answer this questionthank you ^^​

Chemistry
2 answers:
Hatshy [7]2 years ago
7 0

The correct option is 4.) All of these

alexgriva [62]2 years ago
3 0

Answer:

its number 1 sp^3

Explanation:

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HELP!!!
Tasya [4]
D: urethra
20 characters necessary for answer so that's what this typing Is for
7 0
2 years ago
This means that if there are 15.0 g of starting chemicals, also known as
Serggg [28]

Answer:

Reactants

Explanation:

"Starting chemicals", the substances present before a reaction occurs, are called reactants.

The results of the reaction are called products, which you would also have 15.0g.

4 0
3 years ago
Describe why there are the same numbers of particles in the beginning and at the end of the reaction of iron sulphide
tankabanditka [31]
You still have the same mass <span>because you haven't created or destroyed anything.

Hope this helps :)

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4 0
3 years ago
"Infant Joy" is a conversation between __.
ElenaW [278]
The answer to  this is C.
6 0
2 years ago
Murein lipoprotein is critical for maintaining the integrity of the Gram-negative cell envelope and has potent immunostimulatory
Gnesinka [82]

Answer:

Lipid A, present as part of a Lipopolysaccharide complex in the outer membrane of gram negative bacteria cell walls, should be the answer, but it does not appear in the options included.  As option C states “Amino terminal triglyceride”, and triglycerides are lipids, then we could explore this option. However, nothing is said about lipoproteins linked to Lipid A (that acts as an endotoxin) to mention carboxyl- or amino- terminals (options A and C), so I would consider the core oligosaccharide option as more probable (see below*).

Explanation:

Murein and peptidoglycan are names used to refer bacterial cell walls main component.  This complex is mainly composed by disaccharide units composed of alterning N-acetyl-muramic acid (that contains the same structure of N-acetylglucosamine, plus a tetrapeptide) and N-acetyl-glucosamine, which  form the backbone of the wall. These are responsible for the strength and shape of the cell.  In Gram negative bacteria, an outer layer called outer membrane, as it contains an important amount of lipids, linked to other molecules, is also present.  There, Lipid A is associated to a core oligosaccharide, and subsequently to the Antigen O (polysaccharide) forming Liposaccharides, wich stabilize and give strength to gram negative cell walls.  

*Lipid A is the main responsible molecule for toxicity in these cell walls. As in question answer options, is included in B option “Oligosaccharide core”, which is closely linked to Lipid A, it could be the option to choose. Moreover, oligo saccharides are involved in toxicity responses in several microorganisms .

6 0
3 years ago
Read 2 more answers
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