Cells do not need to continuously manufacture large amounts of each enzyme since enzymes can be used over and over. Since they can be used in multiple reactions and in small amounts, enzymes don't have to be constantly made by the body.
chloroplasts
enzyme sped up the chemical reaction
Telomerase maintains the telomeres of chromosomes in order to prevent cell death. This enzyme added sequences onto the ends of the chromosomes, thereby preventing extreme shortening and loss of genetic material. In a way, telomerase would give cells immortal life, by continuously regenerating its ends. However, telomerase are usually inactive in the human body because normal cells do not divide frequently, and therefore, the chromosomes do not shorten.
in the cells
The enzyme produced by cells transformed with plasmid lux that is not produced by cells transformed with pUC18 is luciferase. This enzyme is responsible for the bioluminescent properties of animals like fireflies and glowworms. Cells transformed with plasmid lux will emit light in the presence of the substrate luciferin, whereas cells transformed with pUC18 will not.
chloroplasts
All cells are undergoing mitosis continuously to replace, cells that are dying continuously.
The enzyme that catalyzes transcription in cells is called RNA polymerase.
Stem cells are cells that are able to divide continuously without specializing. These kind of cells are undifferentiated biological cells.
All cells are undergoing mitosis continuously to replace, cells that are dying continuously.
enzyme sped up the chemical reaction
Telomerase maintains the telomeres of chromosomes in order to prevent cell death. This enzyme added sequences onto the ends of the chromosomes, thereby preventing extreme shortening and loss of genetic material. In a way, telomerase would give cells immortal life, by continuously regenerating its ends. However, telomerase are usually inactive in the human body because normal cells do not divide frequently, and therefore, the chromosomes do not shorten.
in the cells
Renin
Yes, ATP synthase is an enzyme that plays a key role in the production of ATP in cells.
Continuously growing teeth, hooves, a massive spleen that releases large amounts of red blood cells when the horse exerts itself and requires increased oxygen for muscles.
Ribosomes from cells.