Plants Are Living Systems

What part of a plant’s leaves allows the plant to take in carbon dioxide and release oxygen?

• stomata

• stem

Tags

NGSS.MS-LS1-6

Plants contain xylem and phloem tissue. What organ system in animals performs a similar function as the xylem and phloem of plants?

• respiratory system

• circulatory system

A gardener is studying two types of cacti. One type has roots that go very deep into the ground. Another type has roots that are very close to the surface. Which environmental factor could account for the difference in the roots of the two cacti?

• the effects of gravity

• the way they obtain water

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A plant leaf is an organ. In what way is a human lung similar to a plant leaf?

• Both organs exchange oxygen and carbon dioxide.

• Both organs are made up of protective dermal tissue.

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NGSS.MS-LS4-2

Plant bodies can respond to changes in their environmental conditions. How does a plant regulate water in its body?

• through the opening and closing of stomata

• through wilting and dropping leaves

Tags

NGSS.MS-LS2-1

A student is studying flowering plants in her science class. She creates a poster to diagram the different plant parts about which she has learned. Taken together, all of the plant parts the student studied make up which level of organization?

• organism

• organ system

During which process do plants capture light energy and carbon dioxide and use them to produce glucose?

• photosynthesis

• cellular respiration

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Plants contain three types of tissue. Describe the function of each. What are the tissues made of?

• The backpack holds a lot of items, is easy to carry and comfortable for hiking, and would be easy to use at the beach. The small beach bag would be easy to use at the beach, but not comfortable for hiking and would not carry a lot of items. The suitcase would carry a lot of items but would not be comfortable for hiking.

• The beach, sand, and water.

Identify two reasons why lack of water is harmful to a plant.

• Water is necessary for the process of photosynthesis. A plant cannot use sunlight to make sugars without water to combine with carbon dioxide. Water is necessary for holding a plant stem upright and allowing a plant to move toward sunlight.

• Air is necessary for the process of photosynthesis. A plant cannot use sunlight to make sugars without air to combine with carbon dioxide. Air is necessary for holding a plant stem upright and allowing a plant to move toward sunlight.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

The diagram shows the process of photosynthesis. In which plant organ and organelle does photosynthesis take place? One of the products of photosynthesis is missing from the diagram. What is the missing product? Describe the role of this substance in cells.

• Photosynthesis takes place in leaves and within the chloroplasts of the leaf cells. ·       The missing product in the photosynthesis diagram is sugar. ·       Sugar is used for energy in cells. ·       Animals cannot make their own sugar, so they must take it into their bodies by eating plants or other animals.

• Photosynthesis takes place in oxygen and within the chloroplasts of the water cells. ·       The missing product in the photosynthesis diagram is water. ·       Water is used for energy in cells. ·       Animals cannot make their own water, so they must take it into their bodies by eating plants or other animals.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3