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MariettaO [177]
3 years ago
9

Someone please help!! WIll give Brainliest!!! 30 points!!!

Biology
1 answer:
Eduardwww [97]3 years ago
8 0

Answer:

Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body. This pattern is repeated, causing blood to flow continuously to the heart, lungs and body.

Explanation:

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Explain why it would not be possible to accurately measure hemoglobin concentration if the RBCs were not first lysed
ss7ja [257]

We have that the structure of Red blood cells, causes the membranous shade to be  lysed to get precise hemoglobin level.

<h3>Red blood Cell</h3>

Generally, the Red blood cell  is blanketed with the help of proteins and lipids, the purple shade of Red blood cells or blood is due to the presence of hemoglobin.

Hemoglobin is <em>considered </em>in the central phase of the pink blood cell. Red blood cells lacks nucleus.

The structure of Red blood cells, causes the membranous shade to be  lysed to get precise hemoglobin level.

For more information on blood visit

brainly.com/question/14415488

8 0
2 years ago
Dna replication is called semiconservative because _______________ of the original duplex appears in the duplex formed in replic
finlep [7]
HALF.. This is a form of replication where two copies were produced each will contain one of the original strand and the other is a new copy. This happens because each nitrogenous base should pair with the complimentary partner, such as adenine with thymine and cytosine and guanine. DNA replication happens due to the action of enzymes. Each new strands will form an identical copy of the original DNA strand. There are various models proposed to explain how replication occurs. These are the conservative, semiconservative and dispersive.
7 0
4 years ago
Cellular respiration, as well as other body processes, produces wastes. These wastes must be eliminated from the body in order f
lana [24]
There are two main organs:

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Liver: inactivates and filters toxins from the bloood and removes toxic substances that have been ingested, such as food additives, harmful minerals, toxic medications, excess hormones.
6 0
3 years ago
When oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
Iteru [2.4K]

Answer:

d. it diffuses into mitochondria to be broken down to generate ATP

Explanation:

When enough oxygen is available in the muscle cells, pyruvate produced by glycolysis enters the mitochondrial matrix. Once inside the mitochondria, pyruvate is decarboxylated into acetyl CoA. The reaction is catalyzed by the enzyme complex pyruvate dehydrogenase. Acetyl CoA then enters a sequence of reactions called Kreb's cycle and is broken down into CO2 and H2O. The energy released during these reactions is stored in the form of NADH and FADH2.

The NADH and FADH2 are oxidized by giving their electrons to O2 via electron transport chain. During this oxidation, the proton concentration gradient is generated across the inner mitochondrial membrane which in turn drives the process of ATP synthesis.

4 0
4 years ago
The Precambrian time period is the largest on the geological time scale. Please select the best answer from the choices provided
Sedaia [141]

Answer:

True

Explanation:

Precambrian, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago. ... The Precambrian represents more than 80 percent of the total geologic record.

3 0
3 years ago
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