Firstly, the skin is physical barrier that prevents the unchecked entry of any foreign materials into the body. Secondly, due to the secretions on the skin, the skin has an acid ph that also inhibits the growth and proliferation of pathogens. Thirdly, immune cells such as Langerhans and dendritic cells are able to access the skin and invoke the an immune response in case of infection.
Answer;
Lysosomes
The organelle that is most likely malfunctioning in the patient’s cells is the lysosomes.
Explanation;
Lysosomes have powerful enzymes and acids to digest and recycle cell materials.
Lysosomes play a major role in getting rid of waste materials in a cell.
-If there are old worn-out parts in a cell, or too many mitochondria, or poisons, then the lysosome forms a membrane bubble around them, and the enzymes inside the lysosome break these large parts down into small molecules that can fit to get through the cell membrane.
Answer:
ovule
The fertilized ovule becomes the seed, and the ovary becomes the fruit. Petals are also important parts of the flower, because they help attract pollinators such as bees, butterflies and bats. You can also see tiny green leaf-like parts called sepals at the base of the flower.
Explanation:
Answer:
The correct option is C ' Each of the three types of RNA are transcribed by different RNA polymerases. Only RNA polymerase II, involved in mRNA synthesis, contains a domain capable of interacting with enzymes that form the cap.'
Explanation:
All the different type of RNA's undergo the process of transcription. However, their transcription is carried on by different types of RNA polymerases.
The transcription of the mRNA is carried by RNA polymerase II. The process of capping is essential so that the mRNA is stopped from degradation.
The rRNA is transcribed by RNA polymerase I which cannot add a cap tothe RNA.
The tRNA is transcribed by the RNA polymerase II, but the domain is different which cannot undergo the process of capping.