You need to know how the structures of tree tissues and also organs are directly related come their duties in physiological processes.

You are watching: Which structure in the leaf controls the opening and closing of the stoma?

tree organs are restricted to roots, stems, leaves, flowers, fruit and also cones. Physiological processes are minimal to photosynthesis, cellular respiration, transpiration, and also reproduction. Tree tissues are restricted to meristematic, ground, dermal and vascular tissues. Plant frameworks are minimal to cambium, security cells, phloem, seed, stomata and xylem.

Terrestrial plants have stomata top top the surface ar of your leaves. A solitary stomata is surrounding by 2 guard cell that adjust shape in response to environmental factors and also open or close the stoma. I beg your pardon of the adhering to best explains how the framework of the sheet is provided in processes that occur in plants?

A. Water beginning the plant through the surface of the leaf for transpiration

B. Gases for photosynthesis space exchanged through the surface ar of the leaf.

C. Power for moving reproduction is soaked up through the surface of the leaf.

D. Carbon dioxide beginning the plant with the surface of the sheet for to move reproduction.

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Example Two


Plant cells the are devoted for cell department are most most likely found in what part of the plant?

A. Source tips

B. Sheet epidermis

C. Stem epidermis

D. Vascular tissue

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Example Three


If the xylem in a young tree is damaged, which process is first affected?

A. Performing photosynthesis

B. Delivering sugar to the roots

C. Transporting water come the leaves

D. Taking in water indigenous the soil

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Example Four


A plant species lives in an area with limited sunlight. I beg your pardon physiological adaptation would be most useful to the plant?

A. Vivid flowers

B. Huge leaves

C. Deep roots

D. Slim cuticle

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Example Five


What is the main duty of leaves?

A. Leaves provide support because that growth and also a location to keep food.

B. Leaves carry out a place for photosynthesis come occur.

C. Leaves absorb water and also minerals and transport nutrient to the stem.

D. Leaves develop a obstacle that avoids water in the plant's tissues from evaporating.

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Example Six


The cambuim is a ar of cells in a plant the can become either component of the xylem or phloem, depending on the growth and needs the the plant. If the cambium that a details plant was damaged, what would be the many likely effect on the plant?

A. The tree would lose its capability to carry out photosynthesis.

B. The tree would have actually uncontrolled growth.

C. The plant would not experience any change in physiology.

D. The plant would not be able to transport nutrients and also water.

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Example Seven


Which framework in the sheet controls the opening and also closing the the stoma?

A. Cuticle

B. Epidermis

C. Guard cell

D. Spongy mesophyll

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Example Eight


The diagram below shows a cross ar of a tree leaf.

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How walk the structure marked X add to the survival of the plant?

A. It allows the intake of gases crucial for photosynthesis.

B. It permits the input of minerals important for tree growth.

C. It allows the input of sunlight important for ATP production.

D. It permits the input of sugars essential for tree reproduction.

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Example Nine


Which statement explains the duty of flower in tree survival?

A. Flowers deserve to absorb carbon dioxide because that sugar production.

B. Flowers create oxygen with cellular respiration.

C. Flowers contain cells that carry out photosynthesis.

D. Flower contain cells that create gametes.

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Example Ten


What is the main purpose of seed in tree that have them?

A. To protect and also distribute the zygote.

B. Come entice pets to eat the plant.

C. To it is in fertilized by various other plants.

D. To save water because that the mommy plant.

See more: Is There A Comma Before Respectively ”? Comma Before “Respectively”

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Example Eleven


The diagram listed below represents a flower, the reproductive structure of some plants. Many flowers have actually both male and also female frameworks for fertilization and reproduction.

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Which framework is stood for by the letter A in the chart above?

A. The stamen, a male framework which to produce pollen

B. The pistol, a female framework which collection pollen and passes it to the ovary

C. The sepal, a amendment leaf offered for security of the flower

D. The petals, decorative structures which tempt pollinators

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Transport in Plants-Web Tutorial


Plant Organs-Web indict


In your Book


General biology - chapter 21, pg. 638

Honors biological - thing 23, pg. 550


Additional task Links


Virtual Lab: plant Transpiration - Glencoe

Web Tutorial: components of a Flower - Harcourt


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