1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
d1i1m1o1n [39]
3 years ago
13

a hypothetical cell has approximate shape of a shape of a sphere. rhw diameter of thw spherical cell os six units long. another

cell is shpaed like a cylider which has the diameter of 6 units and a height or length of 400 units long. determine the volum of both.
Biology
1 answer:
Lerok [7]3 years ago
6 0

Answer:

The sphere: volume is about 113.1

The cylinder: Volume is about 11309.73

Explanation:

This is done by using the formula for the volume of a sphere ( v=4/3 pi r^3) and the formula for the volume of a cylinder (v=pi r^2 h). You plug in things such as radius, height, and pi or 3.14 into a calculator.

You might be interested in
Determine if the following statement is true or false. If true, choose TRUE. If false, choose the rewording that is true.
Aleks [24]

Answer: TRUE

Explanation:

6 0
3 years ago
¿Cuáles han sido las características que han hecho posible en la vida en la Tierra?
enyata [817]

Answer:

una correcta distancia del planeta respecto al sol, la presencia de  agua en el planeta, la presencia de la capa de ozono, La presencia de los elementos químicos esenciales, y el campo magnético terrestre

Explanation:

4 0
3 years ago
What role can exosomes play in disease treatment? who can tell me detailed information? Any help would be appreciated. Thanks in
jolli1 [7]

Answer:

Exosomes as Therapeutic Target

Given the fact that elevated exosome levels are often correlated with greater severity of different types of cancer, reducing circulating exosomes to normal levels is one of therapeutic strategies to increase treatment efficacy. There are different approaches to modulate exosome production: 1) Inhibition of exosome formation: inhibit crucial proteins involved in exosome formation pathway; 2) Inhibition of exosome release: inhibit important regulators of exosome release process, increased intracellular Ca2+, change cellular microenvironmental pH; 3) Inhibition of exosome uptake: add proteinase for surface proteins on exosomes may serve as receptors for uptake pathways. In addition to control exosomes production, removal of exosomes from the entire circulatory system might be a novel strategy for cancer treatment.

Exosomes could also be used as cancer immunotherapy becasue tumor-derived exosomes carry antigens that is a great source of specific stimulus for the immune response against tumors. Both tumor-derived and dendritic cell-derived exosomes have showed capability to stimulate tumor antigen-specific responses in experimental animal models and human clinical trials.

Exosomes as Targeted Drug Delivery Vehicles

Exosomes became one of the most common methods applied in drug delivery system because of several advantages they have. Firstly, exosomes normally have a small size 40-100 nm, which is more homogenous compared to other microvesicles. This will lead them to evade rapid clearance by the mononuclear phagocyte and enhances passage through fenestrations in the vessel wall. Secondly, due to their endogenous origin, they are less toxic for and better tolerated by the immune system. It facilitates them to avoid causing side effects that normally occur with synthetic nanoparticles. Additionally, the specific ligand or protein expressed on the exosome surface increases efficiency of cargo into the cytosol of the target cell, and therefore fewer off-target effects. Exosomes are generally found most useful as a drug delivery medium in cancer therapy, anti-inflammation and gene interference therapy such as transferring of miRNA.

There are different kinds of cargos encapsulated by exosomes, especially like siRNA or miRNA. The delivery of RNA is attracting because they are rapid degradation in cell circulation and have the limitation in passing through the membrane and in cellular uptake. Chemotherapeutics loaded into exosomes is also used for cancer therapy such as doxorubicin. In principle, there are four key components to achieve correct functionality and efficacy during exosomes drug delivery:1) Choosing the donor cell type to produce drug-carrying exosomes; 2) Using correspond methods to encapsulate the exosomes cargo; 3) Enhancing the specificity of cargo delivery by targeting peptides on the surface of the exosomes; 4) Administrating exosomes to target the area of disease.

Explanation:

https://www.creative-biostructure.com/exosome-applications-652.htm

5 0
3 years ago
Astrology work, help needed please
e-lub [12.9K]

I think it's first quater, hope that helped!

6 0
3 years ago
Read 2 more answers
Which of the following domains include organisms that have a nucleus and
Olegator [25]

Answer:

The correct option is <em><u>B. Eukarya only</u></em>

Explanation:

Bacteria can be described as prokaryotic organisms that do not possess a nucleus. Their genetic material is generally present in the cytoplasm of the cell in a region called nucleoid. Some extra genetic material is found in them in the form of plasmids. Hence, option D is not correct.

The domain, Archae, contains prokaryotes and they lack a nucleus. Hence, option A and C are not correct.

Eukaryotes are multicellular organisms which contain a nucleus and other membrane-bound organelles. Hence, option B is correct.

5 0
3 years ago
Other questions:
  • Last week I was assigned a thematic. We have groups of three but the people I was assigned with haven't been in school for days.
    14·1 answer
  • I am reaserching white fox scientits for school, Know any?
    11·1 answer
  • In what way does the presence of an atmosphere enhance conditions for life on Earth's surface?
    10·1 answer
  • Why do plants need energy? Do skin cells or muscle cells have more mitochondria?
    11·1 answer
  • What are the three types of symbiotic relationships? with definitions please
    9·1 answer
  • A bee gets nectar from a flower and the flower gets help with pollination. Both benefit, so the symbiotic relationship is ______
    11·1 answer
  • In self-pollination a plant has both reproductive structures and fertilizes itself with pollen. The offspring is identical to th
    13·1 answer
  • Who wanna be my bsff i cant find my other one
    10·2 answers
  • Purple is dominant (G). Blue is recessive (g). What is the genotype of a heterozygous parent?
    6·1 answer
  • What characteristic is common of developing countries? 5a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!