Answer:
Explanation:
Transportation in plants is an interesting process. It includes the transport of all the nutrients and water to all parts of the plant for its survival. In case of plants, the biggest concern is the transport of water and it terminates at the limiting factor depending on its growth. To overcome this problem, a tree uses several processes like Translocation, Storing, Absorption and Utilization of water
Definition of Transportation in plants
Transportation is the process of transporting water, minerals and food to all parts of the plant body.
Transport in plants occurs at three levels:
The uptake and release of water and solute by individual cells.
Short distance transport of substances from one cell to another.
Long distance transport of sap within xylem and phloem.Direction of transport is an important aspect in plants. In case of rooted plants, transport in xylem of both minerals and water is unidirectional from roots to stems. In this, mineral and organic nutrients undergo multidirectional transport. It includes the organic compounds that are formed during photosynthesis are exported to all parts of the plants along with storage organs. Plant growth regulators, hormones and chemical stimuli are also transported in unidirectional or polarized manner, in very small amounts, from where they are formed to other parts
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siRNA prevent gene expression by binding to the product of transcription because <u>they bind to mRNA</u>
Explanation:
siRNA are short-sequence RNA strands, about 20 bp long, that bind to complementary regions on transcribed mRNA. This causes the formation of regions of dsRNA on the mRNA. This subsequently result in recruitment of enzymes such as Diver enzyme to cleave the mRNA and hence rendering it ineffective for translation into proteins. This is how siRNA negatively regulate genes, a process that has also been identified in research as a window to remedy genetic diseases.
Learn More:
For more on gene regulation check out;
brainly.com/question/7196655
brainly.com/question/12872159
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break down lactose
β-galactosidase is necessary for organisms as it is a principal provider in the generation of energy and a source of carbons through the breaking of lactose to galactose and glucose.
β-galactosides combine carbohydrates comprising galactose where the glycosidic linkage lies above the galactose particle. Substrates of various β-galactosidases incorporate, lactose, ganglioside GM1, lactosylceramides, and various glycoproteins.
Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend, opening K+ gates.
Answer:
Some reasons that people give for smoking:
> they believe it reduces stress and anxiety ( scientific studies show this isn't factual and the chemicals within smoking products is only made appealing and or distracting to make the user believe so. It actually heightens stress levels and lowers health levels)
> this sounds cliche but, teens often think its cool or get peer pressured into it. They find themselves wanting to try harmful substances and get addicted. ( in one study there were d r u g s found in smoking products aimed to get the attention of children and young adults. It's all a marketing ploy for business men and women to collect money as you slowly grow more and more breathless)
> lastly, "it's not that bad for you" often, markets and cig stores tell potential buyers its not as bad as other things. Some say its not harmful at all.( Lung disease,gum disease,heart failure,etc. all disprove this. Each year about 480,000 people die from the affects of smoking)
Explanation:
