Checkpoint 3 Review (2024)

Front

What is the role of enzymes in biological processes?

Back

Enzymes act as catalysts that speed up chemical reactions by breaking down substrates.

Front

Define parasitism in ecological relationships.

Back

Parasitism is a type of symbiotic relationship where one organism benefits at the expense of another, causing harm to the host.

Front

What is mutualism? Provide an example.

Back

Mutualism is a symbiotic relationship where both organisms benefit. An example is the relationship between clownfish and sea anemones.

Front

Explain commensalism and give an example.

Back

Commensalism is a type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed. An example is barnacles attaching to whales.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert chemical energy from nutrients into ATP, releasing waste products.

Front

How do enzymes affect the activation energy of a reaction?

Back

Enzymes lower the activation energy required for a reaction to occur, making it easier for the reaction to proceed.

Front

What is the difference between mutualism and parasitism?

Back

In mutualism, both organisms benefit, while in parasitism, one organism benefits at the expense of the other.

Front

Describe the relationship between mistletoe and oak trees.

Back

Mistletoe is a parasite that extracts water and nutrients from oak trees, causing harm to the trees.

Front

What is the significance of ATP in cellular respiration?

Back

ATP (adenosine triphosphate) is the main energy currency of the cell, providing energy for various cellular processes.

Front

Identify a key characteristic of commensalism.

Back

In commensalism, one organism benefits while the other is unaffected.