Plant Systems Check for Understanding

Which of the following structures is an opening on the underside of a leaf that is necessary for gas exchange?

• stoma

• epidermis

• shoot

• cuticle

When a tree suffers from a decreased ability to transport materials within the phloem, what is directly impacted?

• volume of water in the xylem

• flow of necessary nutrients

• response to environmental factors

• rate of photosynthesis in leaves

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

The primary reproductive structures of a lily are labeled on the illustration.

How do the labeled structures interact during plant reproduction?

• Pollen from the Y structure transfers to the X structure to deliver sperm to the ovules

• Pollen from the X structure transfers to the Y structure to deliver sperm to the ovules.

• Eggs from the Y structure transfer to the X structure to deliver ovules to the pollen.

• Eggs from the X structure transfer to the Y structure to deliver ovules to the pollen.

Tags

NGSS.MS-LS1-4

A plant’s shoot system and root system interact through specialized tissues.  The transport of sugars down from the leaves is the main function of the ―

• phloem

• guard cells

• xylem

• stomata

A flower that has both male and female reproductive structures is shown. 

Which statement best describes an interaction that will allow a flowering plant to reproduce by self-pollination?

• An anther is transferred from a filament to another filament within the same flower. 

• An ovule is transferred from the ovary to a petal on a different flower. 

• A pollen grain is transferred from an anther to the stigma of the same flower. 

• An ovary is transferred from a flower on one plant to a flower on a different plant. 

Tags

NGSS.MS-LS1-4