Movement of Substances Across the Cell Membrane

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question 1 of 4 Grade: Form 3

Q: 3 Which of the following is true regarding active transport?

An input of energy is not required for it to occur.
It allows particles to pass easily between lipids in cell membranes.
It occurs against a concentration gradient.
Particles move from high concentration to low concentration.

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Sodium hydroxide reacts with hydrochloric acid in a neutralisation reaction to form sodium chloride and water. The equation is NaOH + HCl → NaCl + H₂O.

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Did You Know?

Sodium hydroxide reacts with hydrochloric acid in a neutralisation reaction to form sodium chloride and water. The equation is NaOH + HCl → NaCl + H₂O.

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