Homeostasis in Organisms
Cells & Energy
Defense & Disease
Chemistry of Life
Regulation & Balance
100

What is the process by which organisms maintain a stable internal environment?

Homeostasis 

100

What organelle is known as the “powerhouse of the cell”?

What is the mitochondria?

100

What causes infectious diseases?

What are pathogens (such as bacteria, viruses, fungi, parasites)?

100

What type of molecule speeds up chemical reactions?

What is an enzyme (a catalyst)?

100

What organ in the body produces insulin?

What is the pancreas?

200

What term describes an organism’s response to a change in its environment?

Stimulus 

200

What process converts glucose and oxygen into ATP energy?

What is cellular respiration?

200

What is a weakened or dead form of a pathogen used to build immunity?

What is a vaccine?

200

What term refers to the chemical processes that occur within living things?

What are biochemical processes? 


200

What hormone lowers blood sugar by helping cells absorb glucose?

What is insulin?

300

What is the main function of the immune system?

To protect the body from pathogens and disease

300

What green organelle carries out photosynthesis in plants?

What is the chloroplast?

300

What proteins are made by the body to fight off specific antigens?

What are antibodies?

300

What type of molecule do enzymes act on?

What is a substrate?

300

What is the term for the constant small adjustments organisms make to maintain balance?

What is dynamic equilibrium?

400

What is a small infectious agent that can only reproduce inside living cells

What is a virus?

400

What is the main energy molecule used by cells?

What is ATP (adenosine triphosphate)?

400

What is a nonliving infectious particle that can mutate quickly, like HIV?

What is a virus?

400

What scale measures how acidic or basic a solution is?

What is pH?

400

What plant cells control the opening and closing of stomata?

What are guard cells?

500

What type of biological system helps regulate blood sugar levels in humans?

What is the endocrine system (with the pancreas)

500

What two processes are opposite but complementary in the energy cycle?

What are photosynthesis and cellular respiration?

500

Which disease attacks the immune system, making the body vulnerable to infections?

What is AIDS?

500

What process builds larger molecules from smaller ones?

What is synthesis?

500

What type of mechanism helps return a system back to normal after a change?

What is a feedback mechanism?

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