Eukaryotes - Plants

Question 1

What are the roles that pigments play in plants?

Answer 1

1. Increase energy absorotion to help with photosythesis
2. Attracts pollinators

Question 2

Why might a plant, such as Monotropa uniflora evolve to not have pigment?

Answer 2

No competition for resources.

In Monotropa uniflora’s case, it relies on a symbiotic relationship with fungi for nutrients rather than photosynthesis. This allows it to thrive in shaded environments and reduces competition for light.

Question 3

Why might a plant, such as a water lily, evolve to live in an aquatic environment?

Answer 3

To adapt. E.g., access to sunlight, nutrients, and water while avoiding some land-based threats

Question 4

What are the 2 types of habitats that most plants live in at the same time?

Answer 4

Below ground, above ground

Question 5

How is the below-ground habitat different from the aboveground habitat?

Answer 5

Below-ground Habitat: moist/wet-varies, dark, support.

Above-ground Habitat: dry, light-varies, no support.

Question 6

What are the two different functions of the root system?

Answer 6

anchor, absorbs water and nutrients from soil

Question 7

What are the 3 functions of leaves?

Answer 7

Crucial for photosynthesis, gas exchange (CO₂ and O₂), and water regulation through transpiration

Question 8

What roles do flowers play in sexual reproduction of plants?

Answer 8

Site of sexual reproduction. E.g., some flowers produce pollen (sperm), some produce ovaries (ovum), some flowers are small and disperse pollen via wind, etc.