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otez555 [7]
3 years ago
8

Typically, there are __________ papillary muscles that project from the wall of the left ventricle and attach to the tendinous c

ords that support the left av valve
Biology
1 answer:
slamgirl [31]3 years ago
6 0
It is called chordae tendinae or heart string
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2. In gluconeogenesis, it takes two enzymes to convert pyruvate to phosphoenolpyruvate. a. Explain what is happening chemically
Marina CMI [18]

Answer:1. Pyruvate carboxylase

2. Phosphoenol pyruvate carboxy kinase

Explanation:

The conversion of pyruvate to phosphoenol pyruvate is catalyzed by two enzymes Pyruvate carboxylase and phosphoenol pyruvate carboxy kinase

1. Pyruvate carboxylase reaction

Pyruvate in the cytoplasm enters the mitochondria. Then, carboxylase of pyruvate to oxaloacetate is catalysed by a mitochondrial enzyme, pyruvate carboxylase. It needs the co-enzymes biotin and ATP.

The oxaloacetate formed has to be transported from the mitochondrial to the cytosol because further reaction of gluconeogenesis are taking place in cytosol.

2. Phoaphoenol pyruvate carboxy kinase (PEPCK)

In the cytoplasm, PEPCK enzyme then converts oxaloacetate to phoaphoenol pyruvate by removing a molecule of CO2. GTP or ITP donates the phosphate group.

The net effect of these two reactions is the conversion of pyruvate to phoaphoenol pyruvate. This circumverts the irreversible step in glycolysis catalyzed by pyruvate kinase (step 9 if glycolysis)

5 0
3 years ago
Which choice is an example of a decomposer
mylen [45]
The answer is Fungi    
6 0
3 years ago
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Observation: characteristics of cockroach. There are<br>pairs of walking legs.​
Lina20 [59]

Answer:

<h2>Cockroaches are generalized insects with few special adaptations, and may be among the most primitive living Neopteran insects. They have a relatively small head and a broad, flattened body, and most species are reddish-brown to dark brown. They have large compound eyes, two ocelli, and long, flexible antennae.</h2>

three pairs

Thorax. On the thorax, all cockroaches have three pairs of legs. Adults of most of the domestic species have two pairs of wings, although one species, the oriental cockroach, has poorly- developed wings in both sexes.

8 0
3 years ago
The downfall of a tragic character is the result of __________.
ki77a [65]

The downfall of a tragic character is the result of <u>"a tragic flaw".</u>


The term hero is gotten from a Greek word that implies a man who faces affliction, or shows strength, despite risk. Nonetheless, at times he faces ruin too. At the point when a hero goes up against destruction, he is perceived as a tragic hero. Aristotle, the Greek philosopher, portrays these plays or stories, in which the principle character is a shocking saint, as disasters. Here, the hero goes up against his ruin whether because of destiny, or by his own oversight, or some other social reason.  

Hamartia refers to a tragic flaw that causes the downfall of a hero.

5 0
3 years ago
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A young mother of a 4 year old child expresses concern regarding the milk her child is drinking. The family purchases milk with
Sergeeva-Olga [200]

Answer:

Since the child 4 years old WIC milk is better, it is highly nutritious, though cow milk may not has side effect on the child because at that age cholesterol cannot affect the child but help in brain development

Explanation:

4 0
3 years ago
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