<span>A polypeptide is a single linear chain of many amino acids, held together by amide bonds. A protein consists of one or more polypeptides (more than about 50 amino acids long). An oligopeptide consists of only a few amino acids (between two and twenty). </span>
<span />A polypeptide
Answer:
The given statement is false.
Explanation:
Microfilaments refer to the solid rods formed of a protein called actin. Microfilaments are also considered as actin filaments. It is found in all the cells of eukaryotes, the microfilaments are mainly structural in function and are an essential constituent of the cytoskeleton, along with intermediate filaments and microtubules.
Microfilaments vary from 5 to 9 nm in diameter and are developed to withstand huge amounts of tension. With myosin, microfilaments assist in generating the forces used in basic cell motions and cellular contraction. The microfilaments also allow a differentiating cell to separate into two cells and also take part in amoeboid movements of some kind of cells.
A recombinant DNA is artificially constructed DNA molecule with genes of interest that would not be present in the genome otherwise. It is a combination of a vector and a gene of interest. The recombinant DNA is inserted into bacteria E. coli, which, thanks to their reproductive potential, produce multiple copies of this recombinant DNA along with the chromosomal DNA. So, the gene for insulin is inserted int bacteria where is transcribed together with bacterial genes and the great amount of insulin is produced.
Answer: The integumentary system is essential in maintaining homeostasis, a state of stability across factors like temperature and hydration, in the body. The integumentary system stores water and prevents dehydration as well as producing sweat to regulate temperature and rid the body of waste products
Explanation: Barrier protection and water transport can be demonstrated with a piece of fine cloth. Pour water with coarse sand in over the cloth. The sand (bad organisms) are kept out, but the water (sweat) can go through.
Insulation: Put a thermometer into a small block of styrofoam. Put the block on a piece of ice, and then in a cup of hot water and observe the temperature. That is how the skin helps to regulate body temperature.
Cooling: When we exercise a lot (running is good) we generate more internal body heat. Notice how exercise (work) or even just hotter temperatures in the cause us to sweat.
Measure the air temperature with a thermometer and a fan blowing over it. Then measure it again with the thermometer covered with a THIN wet paper towel. That is how our sweat cools our body by evaporation.
