Plant Structure, Function and Response

_________ are the site where a plant produces its food.

• Flowers

• Chloroplasts

• Vascular Tissue

• Xylem

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-2

What are the two organ systems of a typical flowering plant?

• Xylem and Phloem

• Root and Shoot

• Leaves and Stems

• Roots and Stems

What is a cuticle?

• Vascular tissue that moves water and minerals.

• Vascular tissue that moves food.

• A system of tubelike structures inside a plant.

• A waxy, waterproof layer of tissue on the leaf.

The levels of organization in a typical plant include _____, ______, _______, ______, ______.

(a)  

The roots of a saguaro cactus, living in a desert, can survive with limited water. The roots spread out horizontally. When it rains the roots __________________________________.

• grow down in the soil to soak up the water that seeped deep into the below the surface.

• quickly absorb water over a wider area due to the more shallow root system.

• search for the moisture in the air to take in and move through the stem of the plant.

• close up to avoid getting nitrogen and phosphorus from the soil into their system.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

How are plants classified?

• According to their root systems.

• According to their structures and how they reproduce.

• By the size of the leaf and the ability to produce more food.

• By their basic characteristics and where they take in water.

The Texas bluebonnet has large, colorful flowers that produce seeds. This type of plant is called a/an ___________ because it is vascular and has the ability to form flowers to produce seeds.

• Gymnosperm

• Nonvascular

• Vascular

• Angiosperm

Which statement best explains for why a plant would be leaning toward a window?

• It is wilting due to a lack of sunlight.

• It is wilting due to a lack of carbon dioxide.

• It is growing in the direction opposite the force of gravity.

• It is growing in the direction of the sunlight coming through the window.

Tags

NGSS.MS-LS1-6

What type of vascular plants use seeds to reproduce but do not form flowers?

• oak

• horsetail

• angiosperms

• gymnosperms

Plants have a structure that is like a weight for the plant that helps its with orientation. The position of the structure tells the roots cells which way is down. These weight respond to the force of gravity. This is called __________.

• Tropism

• Geotropism

• Phototropism

• Photperiodism