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Dmitrij [34]
2 years ago
7

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

Biology
1 answer:
lisov135 [29]2 years ago
3 0

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:

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Grass (that is healthy) looks green because Group of answer choices it emits green light and absorbs other colors. it reflects g
SVETLANKA909090 [29]

Answer:

it reflects green light and absorbs other colors.

Explanation:

The term pigment derives from the Latin pigmentum, which means the <em>substance that produces color</em>.

Pigments provide color to cells and tissues.

In vegetables, we can find different pigments, such as chlorophyll or carotenoids, among others. Plants use these pigments during the photosynthesis process to absorb sunlight and fixate carbon dioxide. Stem, flowers, and other tissue have pigments in their cells that define the organ´s colors.

Pigments are chemical molecules that produce color by the selective absorption of sunlight. Whenever white light meets a pigment, some wavelengths are absorbed by the pigments while others are reflected. The color expressed is the product of the reflection. The reflected spectrum is perceived as color and determined to be the pigment color or the color of an object or organism.

The color that tissue or vegetal organ express will depend on the pigment concentration or the combination of many of them.

The green color is ordinary in most vegetable species. Chlorophyll is responsible for this coloration, present in almost every vegetable species. This pigment absorbs blue and red wavelengths. But they reflect spectrums of green wavelengths, meaning that the expressed color is green in different tones.

6 0
3 years ago
Energy requires a balanced diet, physical activity, adequate sleep, satisfying work and opportunities for positive interaction.
Makovka662 [10]

Answer: 1. True

2. Between six and right hours

Explanation:

1. Energy simply refers to the ability to do work. It's the strength that's required to be able to sustain a mental or physical activity.

It should be noted that fir positive interaction, energy requires physical activity, a balanced diet, adequate sleep, satisfying work and opportunities. Therefore, the statement is true.

2. Even though the hours of sleep that's used by people typically varies, adults generally need about six to eight hours of sleep.

6 0
2 years ago
How does the immune system react to the flu vaccine?
BARSIC [14]
It detects that the small amount of virus added and it learns to fight off the flu which helps keep you from getting it
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Help me with this question pleaseeee
fomenos
The answer is A which can be found using punett squares

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scientists use tissue cultures to study possible medicines that can be used to treat cancer patient what is one benefit of this
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Answer:patients do not receive harmful or ineffective medication.

Explanation:

Got it off quizlet

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