Matter and Transport Exam

Front

What is the atomic number of Titanium?

Back

22 protons.

Front

What remains constant after a chemical reaction?

Back

The number of atoms of each type.

Front

What molecule is required for active transport in cells?

Back

ATP (Adenosine Triphosphate).

Front

What type of transport requires mitochondria to function?

Back

Active Transport.

Front

What is the chemical formula for caffeine?

Back

C_8H_{10}N_4O_2.

Front

How many Nitrogen atoms are in a caffeine molecule?

Back

4 Nitrogen atoms.

Front

Define 'Active Transport'.

Back

The movement of molecules across a cell membrane using energy, typically against a concentration gradient.

Front

What is 'Simple Diffusion'?

Back

The passive movement of molecules from an area of higher concentration to an area of lower concentration without energy.

Front

What is the role of mitochondria in cells?

Back

Mitochondria produce ATP, which is used for energy in active transport.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.