Plant Interactions

Which of these are evolutionary adaptations to help plants adjust transpiration rates to changing environmental conditions?

• root hairs

• leaf stomata

• xylem cells

• guard cells

In plant fertilization, the male gametophyte is called the...

• anther

• stigma

• pollen grain

• embryo sac

In plant fertilization, the female gametophyte is called the...

• anther

• Stigma

• Embryo sac

• pollen grain

Nutrients that are absorbed by the plant roots from the soil are transported by what system?

• shoot system

• transpiration system

• phloem system

• plant reproductive system

Which of the following is NOT a growth response in plants?

• phototropism

• geotropism

• Thigmatropism

• odotropism

Why are root hairs such an important feature in the root system?

• root hairs have no affect on the surface area of the toot system, but do help with the absorption of nutrients

• root hairs increase the surface area of the root system but do not assist with the absorption of nutrients

• Root hairs increase the surface are of the root system, and assist with the absorption of nutrients

• root hairs have not affect on the surface area of the root system and also do not help with the absorption of nutrients

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

Which structure directly regulates the rate of photosynthesis in this plant?

• C

• B

• J

• H

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following is the best explanation for the growth of the plant in the diagram above?

• The plant is growing toward the light source

• there is not enough water in the soil to keep the plant's stem rigid

• The plant has been over watered and is beginning to fall

• gravity is causing the plant stem to grow toward the ground

Tags

NGSS.MS-LS1-5

A gardener removes all the pine cones from a tree. This will interfere with the function of which system of the tree?

• reproductive

• shoot

• root

• vascular

Tags

NGSS.MS-LS1-4

The plant structure that transports sugars down from leaves is -

• xylem

• phloem

• epidermis

• stomata

Tags

NGSS.MS-LS1-6