Architect Plan and design structures like homes, offices, theaters, factories, and other buildings.
Civil Engineers Use engineering to plan and design construction projects, like roads, bridges, airports, water and sewage systems, and other facilities.
Electrical and Electronic Engineering Technicians Work under the direction of engineers. Design, build, or repair electrical equipment, like circuitry or components. Some electrical and electronic engineering technicians work for power companies that generate and transmit electricity. As companies look for ways of reducing utilities costs, new employment opportunities may arise for engineering technicians who can recommend solutions for improving production efficiency.
Electrical Engineers Use engineering to research, design, develop, or test electrical equipment and systems. May oversee the manufacturing or installation of systems. Talents may be applied to connecting wind farms and solar panels to the grid. Career specialties include energy engineers and photo-voltaic (solar cell) systems engineers. Opportunities may arise for power electronics engineers who can work on design, application, and quality testing in wind turbine manufacturing firms.
Electronics Engineers Use engineering to research, design, develop, or test electronic components and systems for commercial, military, or scientific use. May design electronic circuits for things like telecommunications or aerospace controls.
Industrial Engineering Technicians Work under the direction of industrial engineers to design processes to make better use of resources at work sites. Design the layout of an industrial or manufacturing workplace to make production more efficient.
Mechanical Engineers Use engineering principles to design tools, engines, and other mechanical equipment. Oversee installation, operation, and equipment repairs. Can identify efficiency opportunities in commercial and industrial facilities and calculate estimates of savings. Some can also specialize in wind turbines.
Nuclear Engineers Conduct research on nuclear energy and nuclear waste disposal. They work on problems related to how nuclear energy is used, and how to dispose of nuclear waste.
Stationary Engineers and Boiler Operators Run or maintain equipment that provides utilities to building such as power plants, schools, hospitals, and residential buildings. May operate stationary engines, boilers, or other mechanical equipment. They operate equipment like steam engines, generators, motors, and turbines.
a. Release of acetylcholine from the synaptic vesicles
Explanation:
The events on neuromuscular junction:
Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells. Neurotransmitter ACh binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.
Carbon dioxide is a gas consisting of one part carbon and two parts oxygen. It is one of the most important gases on the earth because plants use it to produce carbohydrates in a process called photosynthesis
