How does oxygen enter plant cells?

How does oxygen enter plant cells? In the natural environment, plants produce their own food to survive. As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called “aerobic respiration”. What triggers stomata to open? Stomata are […]

Is needed to start a chemical reaction?

Is needed to start a chemical reaction? Chemical reactions won’t begin until the reactants have enough energy. The energy is used to break the chemical bonds of the reactants. Then the atoms form the new bonds of the products. Activation Energy is the minimum amount of energy needed to start a chemical reaction. What 3 […]

What is Hertz formula?

What is Hertz formula? We denote frequency by Frequency is measured in Hertz = Hz = 1/seconds. If a wave with a wavelength of 2 meters is going by at a speed of 6 meters/second, then 3 complete waves go by in 1 second. That is, the frequency is 6/2 = 3 waves/second, or 3 […]

What is the formula for oxygen?

What is the formula for oxygen? O₂ Is oxygen a mixture? *Note: pure oxygen gas consists of molecules but it is still considered an element, rather than a compound, as the molecules are made up of a single type of element….Pure Substances. Pure Substance Element or Compound? Consists of: Ammonia (NH3) compound ammonia molecules Is […]

What is field name?

What is field name? Field names are the names you give to the columns in a table. Field names in the same table must be unique; for instance, you can’t have two columns with the name ObjectID. Field names must also start with a letter and cannot contain spaces or reserved words. What is field […]

What is duct silencer?

What is duct silencer? An HVAC duct silencer is specifically engineered to reduce airborne noise carried along ducts or produced by enclosures. You’ll also find these silencers described as sound attenuators when they are used in industrial settings. Why is my HVAC return so loud? If the usual noise volume increases, or you start to […]

What is the resistor value?

What is the resistor value? Resistors. A resistor is a device that opposes the flow of electrical current. The bigger the value of a resistor the more it opposes the current flow. The value of a resistor is given in ohms and is often referred to as its ‘resistance’. What will happen if DC power […]

Which is the most common type of fingerprint pattern?

Which is the most common type of fingerprint pattern? Loop Does each finger have a different fingerprint? Yes, it is common to have different patterns on the fingers of one hand. The reason is because each finger develops individually. During fetal development, factors across the surface of each finger determine how the ridges will align. […]

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