Question

question 3
listen
match each word to its definition.

molecule composed of
carbon, hydrogen, and
oxygen that organisms
use for energy

a. chemical energy

b. glucose

energy stored in a
molecule

c. model

d. carbohydrate

sugar that organisms use
for energy

representation of an idea
or object that helps you
understand it

Explanation:

1. For "molecule composed of carbon, hydrogen, and oxygen that organisms use for energy", the definition matches "carbohydrate" (d) as carbohydrates are organic molecules with C, H, O and serve as energy sources.
2. "Energy stored in a molecule" corresponds to "chemical energy" (a) since chemical energy is the energy stored in chemical bonds of molecules.
3. "Sugar that organisms use for energy" is "glucose" (b) as glucose is a simple sugar (monosaccharide) used by organisms for energy.
4. "Representation of an idea or object that helps you understand it" is "model" (c) as a model is a representation to aid understanding.

Answer:

• "molecule composed of carbon, hydrogen, and oxygen that organisms use for energy" - d. carbohydrate
• "energy stored in a molecule" - a. chemical energy
• "sugar that organisms use for energy" - b. glucose
• "representation of an idea or object that helps you understand it" - c. model