Order the steps that occur as a protein is synthesized within a cell and finally excreted for use outside of the cell.
rough er, mrna, nucleus, cell membrane, golgi body, ribosome
1
2
3
4
5
6

the steps of pritein synthesis include:

1. nucleus

2. mrna

3. ribosomes

4.rough endoplasmic reticulum

5.golgi body

6. cell membrane.

protein synthesis occurs as a result of gene expression and it is divided into two steps which are transcription and translation. transcription occurs in the nucleus and it is the first step in gene expression which involves copying of dna into rna. after being synthesized in the nucleus, mrna needs to be transferred into the cytoplasm, through the nuclear pore complex. transcription and translation are separated processes (in eukaryotes) which enables the regulation of gene expression in a much more intricate way.

  translation starts when the mrna migrate from the nucleus to the cytoplasm. during the translation, mrna is decoded (trna anticodon sequences are complementary binding  to mrna codons) in a ribosome to produce a specific amino acid chain, or polypeptide (future protein). after the ribosome, polypeptides are passed to the rough endoplasmic reticulum (er) for modifications. created proteins can be stored inside the er for the short time, or can be transported to the golgi body which send the appropriate ones to the plasma membrane for the secretion.

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !