Nutrient Cycles & Macromolecules

Front

What is transpiration?

Back

Transpiration is the process of evaporation of water from the leaves and stems of plants into the atmosphere.

Front

True or False: Special 'Fixing' Bacteria in the soil convert nitrogen in the atmosphere into a form that plants can use.

Back

True

Front

How do animals obtain phosphorus?

Back

Animals obtain phosphorus by eating plants or other animals.

Front

What role do decomposers play in the carbon cycle?

Back

Decomposers return carbon into the soil by breaking down dead organic matter.

Front

What molecules are built using nitrogen?

Back

Nitrogen is essential for building both amino acids and nucleotides.

Front

Define 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 the significance of the carbon cycle?

Back

The carbon cycle is crucial for regulating Earth's climate and supporting life by recycling carbon among the atmosphere, land, and oceans.

Front

What are macromolecules?

Back

Macromolecules are large, complex molecules that are essential for life, including proteins, nucleic acids, carbohydrates, and lipids.

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis allows plants to absorb carbon dioxide from the atmosphere and convert it into glucose, thus playing a key role in the carbon cycle.

Front

What is the process of nitrogen fixation?

Back

Nitrogen fixation is the conversion of atmospheric nitrogen into ammonia or related compounds in soil, making it available for plant uptake.