What structure is responsible for the opening and closing of stomata

Describe the experiment, to show that light intensity, water, chlorophyll, and cabondioxide are needed for photosynthesis

lisov135 [29]

Answer:

Is light needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in an opaque box and 1 part in a transparent box (one with light and one without)

3. Test for starch (BEWI)

B. Is carbon dioxide needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. a. cut the leaf in 2

b. 1 part in a box with CO2 absorber and 1 part in box with a CO2 provider

3. Test for starch (BEWI)

C. Is chlorophyll needed for photosynthesis?

1. Destarch the plant (remove previously made starch from plant)

2. Use a variegated leaf

3. Test for starch (BEWI)

B E W I

1. Put leaf in boiling water to destroy the cell membrane and denature enzymes

2. Ethanol in a hot water bath to remove chlorophyll

3. Warm water to soften the leaf

4. Add drops of iodine solution

Explanation:

3 0

3 years ago

Give two examples of adaptations that can help a species survive please fast

Helga [31]

Answer:

Explanation:

Species can have multiple adaptations such as either structural or reproductive adaptation.

Example of structure adaptation for animals would be for giraffe. Their long neck allow them to reach for food high up in the trees. They have adapted to their environment.

Example of reproductive adaptation would be for flowers. The reasons plants have bright colored flowers is so that they can attract insects, birds or even bats which can inadvertently transfer pollen from one plant to another.

5 0

3 years ago

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Which statement best describes the action of a non-competitive inhibitor? Which statement best describes the action of a non-com

valentina_108 [34]

Answer:

A non-competitive inhibitor binds outside of the active site and alters the shape of the enzyme.

Explanation:

A noncompetitive inhibitor would never bind to the active site of the enzyme. It binds to some other site on the enzyme. A non-competitive inhibitor inhibits the action of the enzyme by causing conformational changes in the enzyme so that the enzyme cannot catalyze the conversion of the substrate into the product. In the presence of a non-competitive inhibitor, binding of the substrate to the enzyme is not affected.

3 0

3 years ago

A cross between two individuals that are heterozygous for eye and skin color would be an example of a _____ cross.

8090 [49]

A cross between individuals that are heter0zyg0us for two different traits is a dihybrid cross. A cross between two individuals that are heterozygous for eye and skin color would be an example of a _dihybrid_ cross.

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Dihybrid crosses involve individuals that expresses two different traits and are heter0zyg0us for each of them.

So let us imagine we are studing the characters eye color and skin color. Let us assume that both of them are coded by single diallelic genes.

For eye color there is

Dominant allele B that codes for brown eyes
Recessive allele b that codes for blue eyes

For skin color there is

Dominant allele A that codes for black skin
Recessive allele a that codes for white skin

So, an individual that is heter0zyg0us for both of them, is BbAa.

If this person crosses to another person with the same genotype, we are talking about a dihybrid cross, because two dibybrid individuals are involved.

Cross: BbAa x BbAa

According to this information, we can aswer the question:

When crossing two individuals that are heterozygous for eye and skin color we are referring to a dihybrid cross.

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Learn more about dihybrid crosses at

brainly.com/question/1185199?referrer=searchResults

brainly.com/question/24076691?referrer=searchResults

6 0

2 years ago

What are the different levels of organization of a muscle down to myofilaments

Usimov [2.4K]

Answer:

Molecular, Microscopic, Cell, Tissue and Organ levels

Explanation:

The natural strength production needed for skeletal muscle to function occurs at the molecular level. You can develop a better knowledge of the properties of cells and tissues by simply studying the molecular systems common to the cells in question. The different muscular level down to myofilaments are:

Molecular level — actin and myosin
Microscopic level — sarcomere and myofibrils
Cell level — myoblasts and myofibers
Tissue level — neuromuscular intersections and fascicles
Organ level — The key skeletal muscles of the body

8 0

4 years ago

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