1st 9 weeks Biology Review

Front

What is the photic zone?

Back

The photic zone is the upper layer of a body of water where sunlight penetrates, allowing photosynthesis to occur, enabling plants to grow.

Front

What is a polar molecule?

Back

A polar molecule is a molecule that has a partial positive charge on one end and a partial negative charge on the other end, resulting in an uneven distribution of electrical charge.

Front

Which organisms are considered producers?

Back

Producers are organisms that can make their own food through photosynthesis or chemosynthesis, such as plants and algae.

Front

What is a secondary consumer?

Back

A secondary consumer is an organism that eats primary consumers (herbivores) in a food chain, such as birds that eat insects.

Front

What does it mean to denature an enzyme?

Back

To denature an enzyme means to alter its structure, usually through changes in pH or temperature, causing it to lose its functional shape.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes are catalysts that speed up chemical reactions in the body by lowering the activation energy required for the reaction.

Front

What is the intertidal zone?

Back

The intertidal zone is the area of the shoreline that is exposed to air at low tide and submerged at high tide, hosting unique ecosystems.

Front

What is cohesion in biology?

Back

Cohesion is the attraction between molecules of the same substance, such as water molecules sticking together due to hydrogen bonding.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is the significance of biodiversity in an ecosystem?

Back

Biodiversity contributes to ecosystem resilience, stability, and productivity, allowing ecosystems to adapt to changes and disturbances.