Plant Homeostasis

What is plant homeostasis?

• The process of plants actively seeking new habitats

• The ability of plants to regulate their internal environment

• The process of plants adapting to changes in temperature

• The movement of plants in response to light

Which of the following is NOT a factor that plants regulate to maintain homeostasis?

• Water content

• Carbon dioxide levels

• Soil pH

• Cloud cover

Which part of the plant is primarily responsible for the exchange of gases like oxygen and carbon dioxide?

• Roots

• Leaves

• Stem

• Flowers

How do plants regulate water loss through a process called transpiration?

• Opening and closing of stomata

• Absorbing more sunlight

• Producing more flowers

• Developing thicker stems

What is the role of guard cells in plant homeostasis?

• Absorbing water from the soil

• Producing chlorophyll for photosynthesis

• Regulating the opening and closing of stomata

• Transporting nutrients to the leaves

What is the primary purpose of the cuticle on a plant's leaves?

• To attract pollinators

• To store excess water

• To reduce water loss

• To provide structural support

Which of the following is an example of a plant's response to excessive sunlight as a part of homeostasis?

• Increased transpiration

• Reduced photosynthesis

• Enlarged roots

• Faster growth

How do plants obtain nutrients from the soil?

• Through direct absorption by leaves

• Through their flowers

• Through their stems

• Through their roots

The movement of plant roots towards a water source is an example of:

• Positive geotropism

• Negative phototropism

• Positive hydrotropism

• Negative gravitropism

Which plant hormone is responsible for promoting cell elongation and growth towards sources of light?

• Gibberellin

• Cytokinin

• Ethylene

• Auxin