Abiotic Factors Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What are abiotic factors?

Abiotic factors are any non-living factors that affect an organism or shape its environment, including temperature, moisture levels, light intensity, soil pH and mineral content, wind intensity and direction, carbon dioxide levels, and oxygen levels of the water.

How does temperature affect plant growth?

Temperature affects the rate of photosynthesis.

As the temperature rises, enzymes work faster, increasing the rate of plant growth. Higher temperatures also mean animals spend less energy keeping warm.

Why is light intensity important for plants?

Light intensity is important because plants need light for photosynthesis.

Increased light intensity leads to an increased rate of photosynthesis and plant growth, while reduced light intensity decreases the rate of photosynthesis and plant growth.

How does soil pH affect plant development?

Soil pH affects the rate of decay and mineral ion return to the soil.

Plants that thrive in low pH soil develop slower due to slow decay, while plants in high pH soil develop faster due to quicker mineral ion return.

What effect does wind intensity have on plants?

Wind intensity affects the rate of transpiration.

Higher wind speeds increase transpiration, transporting more water and mineral ions from roots to leaves, which supports photosynthesis.

Lower wind speeds decrease transpiration.

How do carbon dioxide levels influence photosynthesis in plants?

Carbon dioxide levels directly affect the rate of photosynthesis.

Lower levels of CO2 result in a slower rate of photosynthesis, while higher levels of CO2 result in a faster rate of photosynthesis.

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