Plant structures and tropisms

Tony wanted to see if he could make the roots of a plant grow up instead of down. After several tries, he found that the roots always grew down. Nothing he or his teacher did made the roots grow up. What keeps the roots from growing up?

• The roots need water.
• Sunlight hits the plants.
• Gravity pulls on the roots.
• There is plant food in the soil.

Tags

NGSS.MS-PS2-5

What type of tropism response to light? 

• Gravitropism
• Thigmotropism
• Phototropism
• Hydrotropism

Tags

NGSS.HS-LS1-5

What type of tropism response to water? 

• Hydrotropism
• Gravitropism
• Thigmotropism
• Phototropism

Tags

NGSS.MS-LS2-1

A sunflower turns toward the sun, what type of tropism would this be? 

• Hypothyroidism 
• Phototropism
• Thigmotropism
• Gravitropism

What type of tropism response to touch? 

• Gravitropism
• Phototropism
• Thigmotropism
• Hydrotropism

The venus fly trap will close if a fly touches two hairs on the leaves. Which of the following Tropism does this show?

• Phototropism
• Gravitropism
• Thigmotropism
• Hydrotropism

Small grains that contain a plant's male reproductive cells.

• stamen
• pollen
• anther
• stigma

The transfer of pollen, containing the sperm cells, to the female part of the flower. 

• seed disperal
• pollination 
• germination
• fertilization

Stomata are made of specialized cells called ______ which surround a tiny pore/opening

• stoma

• guard cells

• dermal cells

• diffusion channels

Tags

NGSS.MS-LS1-2

The main function of stomata is to

• capture sunlight

• protect leaves from insects

• allow gases to move rapidly in/out of leaves

• release sugars into the atmosphere

Tags

NGSS.MS-LS1-2