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telo118 [61]
3 years ago
10

State the unique characteristics of epithelial tissue.​

Biology
1 answer:
erica [24]3 years ago
7 0

Answer:  

Characteristics of epithelium tissue

1.Polarity- Epithelium is arranged so there is one free surface (apical surface) and one attached surface (basal surface)

2.Cellular nature– Cells in epithelium fit closely together side by side and sometimes atop each other to form sheets of cells. These sheets are held together by specialized junctions.

3.Supported by connective tissue– Attachment to a layer of connective tissue at the basal surface forms a layer called the basement membrane, an adhesive layer formed by secretions from the epithelial cells and the connective tissue cells.

4.Avascular– Epithelium typically lacks its own blood supply.

5.Regeneration– Epithelium cells can regenerate if proper nourished.

6.Absence of nerves (except for a few axons in the deeper layers)

Classification scheme of epithelial tissue:

Typically epithelial tissue is classified on the basis of arrangement and shape of cells. For naming the tissue types, the arrangement of the cells is stated first, then the shape, and is followed by “epithelium” to complete the naming. For example; Simple Squamous Epithelium.

Explanation:

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Plan an investigation on how temperature affects seed germination. ​
Stella [2.4K]

Answer:

Moisture, hormone production, and enzyme activity. For seeds to germinate, they need to imbibe water. For this to occur, sufficient moisture must be present. A warmer climate may increase evaporation and decrease moisture, which would negatively affect germination.

7 0
2 years ago
Which of the following is NOT one of the characteristics animals share? a. cell differentiation c. unicellular b. movement d. re
victus00 [196]
The only logical answer would be C. Unicellular, but the answers seem to be all wrong. 
3 0
3 years ago
In complicated living things, such as human beings, cells have become________________ to perform different tasks
andriy [413]

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8 0
2 years ago
Methylation of EZH2 by PRMT1 regulates its stability and promotes breast cancer metastasis. Cell Death Differ. 2020,
vovangra [49]

Yes, it is true that Methylation of EZH2 by PRMT1 regulates its stability and promotes breast cancer metastasis.

Enhancer of zeste homolog 2 (EZH2), a key histone methyltransferase and EMT inducer, is overexpressed in diverse carcinomas, including breast cancer.

However, the molecular mechanisms of EZH2 dysregulation in cancers are still largely unknown. Here, we discover that EZH2 is asymmetrically dimethylated at R342 (meR342-EZH2) by PRMT1.

meR342-EZH2 was found to inhibit the CDK1-mediated phosphorylation of EZH2 at T345 and T487, thereby attenuating EZH2 ubiquitylation mediated by the E3 ligase TRAF6.

We also demonstrate that meR342-EZH2 resulted in a decrease in EZH2 target gene expression, but an increase in breast cancer cell EMT, invasion and metastasis.

Moreover, we confirm the positive correlations among PRMT1, meR342-EZH2 and EZH2 expression in the breast cancer tissues. Finally, we report that high expression levels of meR342-EZH2 predict a poor clinical outcome in breast cancer patients.

Our findings may provide a novel diagnostic target and promising therapeutic target for breast cancer metastasis.

Learn more about breast cancer here : brainly.com/question/6747562

#SPJ4

4 0
2 years ago
How many types of genes are there? Name them.
kherson [118]

Answer:

Where my dear i don't know what you saying

4 0
3 years ago
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