Plant review

Which of the following statements best describes xylem's function in the plant?

• transpports water and minerals up from the roots to the rest of the plant
• transports food down from the leaves to the rest of the plant
• transports water and minerals down from the roots to the rest of the plant
• transports food up from the leaves to the rest of the plant

What organelle in the leaves of plants capture light energy from the sun to complete photosynthesis?

• Chloroplasts
• Mitochondria
• Nucleus
• Ribosomes

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

What are the openings on the underside of leaves that let carbon dioxide into the leaf and let oxygen out?

• Chloroplasts
• Stomata
• Stomach
• Cuticle

Tags

NGSS.MS-LS1-6

In which type of growth response does the plant grow in response to touch?

• Hydrotropism
• Heliotropism
• Geotropism
• Thigmotropism

what dose the plant cell have what the animal cell doesn't have?

• cellmembrane
• ctyoplasm
• vacuole
• chloroplast,cell wall

Tags

NGSS.MS-LS4-2

A bacterial disease starts to make the leaves of a plant began to wilt and fall off. If the disease is not addressed and cured soon the leaves of the plant will begin to die. Which of these functions would be most immediately affected by the loss?

• Disease resistance

• Seed dispersal

• Sunlight absorption

• Water absorption

Tags

NGSS.MS-LS1-6

Venus flytraps uses sweet nectar to lure insects into specialized leaves that captures prey which are triggered to close when the insect rubs against sensitive hairs. The sensitive hairs are only triggered by living things. Venus flytraps digest the insect in a matter of a few days. Based on this information what function do the specialized leaves perform?

• Provide water to the plant and perform photosynthesis

• Respond to stimuli and anchor the plant

• Provide nutrients to the plant and respond to stimuli

• Release pollen to insects and perform photosynthesis

A student designs an experiment to demonstrate the presence of openings in the walls of xylem cells in plants. He takes a long-stemmed, white chrysanthemeum (flowering plant) and carefully cuts the stalk halfway up. He places each half of the stalk in a glass cylinder filled with water. Red dye is added to one cylinder; blue dye is added to the other. What observations would you expect to make over the next few days?

• The flower remains white.
• The flower turns blue, then changes to red.
• The flower turns red, then changes to blue.
• Initially part of the flower will be blue and part will be red, but eventually both colors will appear in all parts of the flower.

Tags

NGSS.MS-LS2-3

To determine if the direction of root growth is influenced by the orientation of seeds when they are planted, an investigation was set up as shown in diagram A below. The container was placed in the dark for one week. The results are shown in diagram B. Which factor caused the emerging roots to grow downward?

• Lack of light, which prevented photosynthesis

• Loss of water from the seeds during the week

• The influence of temperature on root growth

• The influence of gravity on hormone distribution in each root

Tags

NGSS.MS-LS1-5

The plant shown below is growing in a glass beaker with access to water, nutrients, and light. What explanation best accounts for the directional change in growth observed in the plant shown?

• The plant was only watered on the left side of the beaker.

• The plant was initially grown in the dark, then was placed in the sunlight.

• The plant was initially grown on its side in a tray of water, then moved upright into a beaker.

• Sunlight is only accessible from the left side of the beaker.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6