Macromolecules
Cells & Organelles
Enzymes & Digestion
Energy & Respiration
Ecology & Systems
100

Which macromolecule is found in bread and provides quick energy?

What is a carbohydrates?

100

What organelle is the “powerhouse” of the cell?

What is the mitochondrion?

100

What enzyme in saliva starts breaking down starch?

What is amylase?

100

What is the main energy molecule cells use?

What is ATP?

100

What do we call an organism that makes its own food?

What is a producer or autotroph?

200

Which macromolecule is essential for muscle repair and found in eggs?

What is protein?

200

What cell structure controls what enters and exits the cell?

What is the cell membrane?

200

What happens to enzymes at high temperatures?

They denature (lose shape and function).

200

What organelle produces ATP through cellular respiration?

What is the mitochondrion?

200

What is the role of decomposers in a food chain?

They break down waste and dead organisms.

300

What macromolecule makes up oils, nuts, and avocado?

What are lipids?

300

Which organelle is responsible for protein synthesis?

What is the ribosome?

300

What pH does pepsin (a stomach enzyme) work best in?

What is a low pH (acidic)?

300

What process do cells use to make energy with oxygen?

What is aerobic respiration?

300

What is a real-world example of a symbiotic relationship in food?

Gut bacteria helping with digestion.

400

Which macromolecule contains genetic instructions?

What is nucleic acid (DNA/RNA)?

400

What part of a vegetable cell is not found in animal cells and helps with structure?

What is the cell wall?

400

How are enzymes like a “lock and key”?

They only work on specific substrates.

400

) What food gives your cells glucose for energy production?

What are carbohydrates (like fruit, pasta, bread)?

400

Why is biodiversity in crops important for human survival?

It protects food supply from disease and climate change

500

Match this dish to its dominant macromolecule: Grilled chicken with brown rice and avocado.

What are protein (chicken), carbs (rice), and lipids (avocado)?

500

Why do muscle cells have more mitochondria than skin cells?

Because they require more energy to function.

500

) How could pineapple, which contains bromelain, affect digestion?

It helps break down proteins faster.

500

Why does your breathing rate increase during exercise?

To deliver more oxygen to cells for ATP production.

500

How does what we eat impact the environment?

Answers can include food miles, emissions, farming practices.