GED Science 2

Question 1

Which organelle is responsible for producing energy (ATP) in a eukaryotic cell?

Accepted Answer

Mitochondria

Answer

Mitochondria are the 'powerhouses of the cell,' producing ATP through cellular respiration using oxygen and glucose.

Question 2

Which process do plants use to convert light energy into chemical energy (food)?

Accepted Answer

Photosynthesis

Answer

Photosynthesis is the process plants use to capture light energy and convert it into glucose (chemical energy), releasing oxygen as a byproduct.

Question 3

What is the correct order of levels of biological organization from smallest to largest?

Accepted Answer

Cell → Tissue → Organ → Organ system → Organism

Answer

Biological organization from smallest to largest: Cell → Tissue → Organ → Organ system → Organism.

Question 4

In a food chain, which organism is the PRIMARY producer?

Accepted Answer

Grass

Answer

Producers (like grass) make their own food through photosynthesis. They form the base of food chains and are called autotrophs.

Question 5

Which of the following best describes the function of DNA in cells?

Accepted Answer

Contains genetic instructions for building proteins

Answer

DNA (deoxyribonucleic acid) stores genetic information in the form of base sequences that code for proteins, which carry out most cellular functions.

GED Practice Test