Topic 2 - Homeostasis in Organisms

Front

What are the 4 types of pathogens that could cause illness?

Back

Bacteria, fungi, viruses, parasites.

Front

What are foreign proteins recognized as 'non-self' by the body?

Back

Antigens.

Front

What is the term for the molecule that an enzyme acts upon?

Back

Substrate.

Front

Where do substrates bind on an enzyme?

Back

Active site.

Front

What is the correct equation for photosynthesis?

Back

6CO₂ + 6H₂O → 6O₂ + C₆H₁₂O₆.

Front

What is homeostasis?

Back

The process by which organisms maintain a stable internal environment.

Front

What role do enzymes play in biological reactions?

Back

They act as catalysts to speed up chemical reactions.

Front

What is the function of antibodies in the immune system?

Back

They identify and neutralize foreign objects like bacteria and viruses.

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is the significance of the cell membrane in homeostasis?

Back

It regulates the movement of substances in and out of the cell, maintaining internal balance.