SI Midterm Exam Review Fall 2024

Front

What provides long term energy storage in living organisms?

Back

Lipids provide long term energy storage.

Front

What happens to the nitrogen cycle if humans dump high amounts of animal waste into freshwater lakes?

Back

The amount of nitrogen in the water would INCREASE, causing algal blooms to form.

Front

What can both lipids and carbohydrates be used as by the cell?

Back

Both lipids and carbohydrates can be used as sources of energy.

Front

What type of symbiotic relationship is shown by barnacles and whales?

Back

Commensalism is the symbiotic relationship shown by barnacles and whales.

Front

What is parasitism?

Back

Parasitism is when one organism benefits at the expense of the other (the host).

Front

Define lipids.

Back

Lipids are organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents.

Front

What is the role of carbohydrates in living organisms?

Back

Carbohydrates serve as a primary source of energy and are also involved in structural functions.

Front

Explain the nitrogen cycle.

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What is commensalism?

Back

Commensalism is a type of symbiotic relationship where one organism benefits while the other is neither helped nor harmed.

Front

Give an example of mutualism.

Back

An example of mutualism is the relationship between bees and flowering plants, where bees get nectar and plants get pollinated.