Answer:
b. The foot and ankle should be pointing straight ahead in a dorsiflexed position when it hits the ground
Explanation:
Dorsiflexion is a movement in the ankle where the toes point in an upward direction allowing for correct foot strike if done properly at approx. 15 degrees. As you run, dorsiflexing your foot puts it in an ideal position to absorb the shock of the landing while simultaneously tensing your muscles to spring forward into the next stride which allows a reduced ground contact time per stride, allowing you to run faster and more efficiently.
If a runner has poor dorsiflexion they may experience a ‘loose’ or ‘floppy’ foot due to relaxation at the ankle joint which results in striking the ground through the toes which causes poor force distribution resulting in injuries such as shin splints and runner’s knee.
Protein synthesis is a biological process whereby individual cells build their own specific proteins. In the process of protein synthesis, it involves both ribonucleic acid (RNA) and (deoxyribonucleic acid) DNA. This process initiates in cell’s nucleus whereby some specific enzymes unwind the needed part of DNA and makes it accessible and a copy of RNA is made. In transcription DNA double helix which is used as a template is where information of DNA is copied to RNA as one strand.
RNA which are sent to cytoplasm helps to bring components which require for protein synthesis for example ribosomes, amino acids, transport RNA. mRNA is a messenger which is produced in the nucleus when a copy of RNA of protein genetic information encodes in DNA molecule. mRNA exits nucleus and goes into cytoplasm then it interacts with cellular structures called ribosomes and functions as cell’s assemblers in the process of protein synthesis.
RNA molecule or rRNA and proteins are contained in ribosomes whereby rRNA is organized into subunits and mRNA binds to one of the ribosomes sub-unit. mRNA interacts with ribosome sub-unit and makes the approach of another RNA molecule known as RNA or tRNA. tRNA possess a sequence of three bases or anticodon which corresponds codon within the mRNA sequence where elongation takes place. If matching of anticodons of tRNA is found, tyrosine then forms a peptide bond. Amino acids are hydrolyzed from tRNA when protein synthesis is terminated after mRNA is reached
AC can be produced by using a device is called as an alternator. This device is a special type of electrical generator designed to produce alternating current. A loop of wire is rotated inside of a magnetic field, which induces a current along the wire.
As it gets colder, the molecules get less dense which causes it to get smaller.
