A electroscope is a device that detects static electricity by using thin metal or plastic leaves, which separate when charged.
Answer
Optimal temperature for catalase activity is around 30'C because the highest amount of oxygen bubbles were observed at this temperature. Catalase activity decreases after optimal temperature. This happens because the enzyme becomes denatured.
Answer:
It is a Barometer
Explanation:
A Thermometer meaures temperature.
A Wind Vane measures the direction of the wind.
A Anemometer measures speed and direction.
Barometer measures air pressure.
Answer: Active Transport
Active and passive transport are two biological processes which are occurring all the time in the cells and body. These processes provide oxygen and other nutrients to the cells and remove waste materials from the body. But both processes differ from each other on the basis of gradient and expense of energy.
Because In active transport, nutrients move from low concentrated region to high concentrated region on the expense of energy whereas, in passive transport, nutrients move from high concentration to low concentration without the use of energy.
ACTIVE TRANSPORT, molecules move against the concentration gradient.
