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Effectus [21]
3 years ago
5

What is an organelle? A small structure within the cell that serves specialized functions. A specialized protein that speeds up

chemical reactions. Packets within the cell cytoplasm that contain powerful enzymes. The semipermeable membrane surrounding a cell.
Biology
2 answers:
alex41 [277]3 years ago
5 0

Correct answer: A) A small structure within the cell that serves specialized functions

Organelles are small,specialized structures found inside the cell which perform a specific task and help in the functioning of the cell.

Organelles are known to be found in all the eukaryotic cells. There they serve a essential and specialized functions such as making proteins, getting rid of waste, harvesting energy etc.

Example: Mitochondria, endoplasmic reticulum, nucleus etc.



Svetllana [295]3 years ago
3 0
<span>A small structure within the cell that serves specialized functions.</span>
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The number of cells in an average-sized adult human is on the order of 10^14 cells. Use this information, and the estimate that
KengaRu [80]
IF:
Number of cells: C = 10^{14}
DNA lenght: D = 2m = 12.42 * 10^{-4} mi
Distance from Earth to Sun: ES=93000000 mi = 9.3* 10^{7}mi

Then:
a) <span>Over how many miles would the total DNA from the average human stretch?
The answer is product of multiplication of the number of cells (C) and the DNA length (D):
Total DNA: </span>T = C*D
              ⇒ T = 10^{14}*12.42* 10^{-4} mi
              ⇒ T = 12.42* 10^{14-4} mi
              ⇒ T = 12.42* 10^{10} mi
The total DNA from the average human will stretch 12.42* 10^{10} mi

b) How many times would the total DNA from the average human stretch from Earth to the Sun and back?
The answer is concluded from the ratio of the total DNA length (T) and the <em>twice </em>(because of stretch to the Sun and back, thus, <em>two directions</em>) of distance from <span>Earth to the Sun (ES) and :
Ratio: </span>R= \frac{T}{2*ES}
      ⇒ R = \frac{12.42* 10^{10}mi }{2*(9.3* 10^{7}mi)}
      ⇒ R = \frac{12.42* 10^{10}}{18.6*10^{7}}
      ⇒ R = 0.6677* 10^{10-7}
<span>      ⇒ R = 0.6677* 10^{3}
</span><span>      ⇒ [tex]R = 667.7
</span>Thus, 667,7 times will the <span>total DNA from the average human stretch from Earth to the Sun and back.</span>
6 0
3 years ago
The excessive concentrations of circulating parathyroid hormone appeared to be caused by a tumor of the parathyroid gland or ___
Reika [66]

Answer:

parathyroidoma

Explanation:

The condition where the parathyroid hormone is produces excessively is termed as Hyperparathyroidism. This condition arises when the balance between the calcium and phosphorus gets disturbed. The calcium and phosphorus balance is affected in following two cases –  

a) When the parathyroid gland is not working properly due to its own problem usually termed as hyperparathyroidism or more specifically primary hyperparathyroidism

b) When the parathyroid gland is not working properly due to any other disease in the body affecting the functioning of parathyroid. It is termed as secondary hyperparathyroidism  

4 0
3 years ago
The nurse is conducting a routine risk assessment at a prenatal visit. which question would be the best to screen for intimate p
AleksAgata [21]
<span>The nurse could ask about how disagreements or arguments look between the woman and her partner, if they feel scared or intimidated, or if they feel as if they've been put down a lot by their partner. If the patient seems open and cooperative, the nurse could even ask directly if she has been a recipient of violence at the hands of her partner.</span>
6 0
3 years ago
what is the difference between the closed conformation and open conformation of chromatin packing? biology
Oduvanchick [21]

The shape of chromatin, which can be either open (euchromatin) or compact (heterochromatin), is dynamically regulated during the phases of the cell cycle is the two types of conformations.

  • The main distinction between conformation and configuration is that whereas the configurations of the same molecule do not easily interconvert, their conformations do.
  • With a predefined location in the nucleus and a certain form, such as metacentric, submetacentric, acrocentric, or telocentric, chromosomes are primarily heterochromatic in this stage.
  • All DNA-mediated processes, including gene regulation, can be significantly impacted by the degree of nucleosomal packaging.
  • While heterochromatin (tight or closed chromatin) is more compact and resistant to factors that need to access the DNA template, euchromatin (loose or open chromatin) structure is permissible for transcription.

To know more about chromatin check the below link:

brainly.com/question/691971

#SPJ4

5 0
1 year ago
Who was responsible for medical records before 1928?
tia_tia [17]

Answer:

The physical medical record belongs to the physician who created and the facility in which the record was created. The information gathered within the original medical record is owned by the patient. That is why patients are allowed a COPY of their medical record, but not the original document.

Hope it helps you.

8 0
2 years ago
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