Explain how the investigation could indicate that chlorophyll is needed for photosynthesis. Include the role of chlorophyll in your explanation.

Answers

Answer 1

Chlorophyll is the green pigment found in the chloroplasts of leaves. It gives leaves their green colour and aids in the process of photosynthesis by trapping light needed for it.
The variegated leaf experiment is used to investigate that chlorophyll is needed for photosynthesis:
- Take a variegated leaf
- Take another leaf and don’t do anything to it (it’s going to act as a control plant)
- Place the leaves in different Petri dishes containing moist cotton wool
- Leave the Petri dishes in the sun for about 6 hours
- Carry out the iodine test for starch on both leaves by placing 2-3 drops of iodine solution on both leaves
- You’ll find that the control turns dark blue/black while the variegated leaf is stained yellow on the white parts but dark blue/black on the green parts.
The blue/black color shows that starch is present in the leaf meaning photosynthesis took place. The yellow color is just the color of iodine solution.
The white parts do not contain starch because there is no chlorophyll to trap sunlight needed in the process of photosynthesis. This shows that chlorophyll is necessary in the process of photosynthesis.

Related Questions

Summary of human nutrition

Answers

Answer:

Human nutrition is the process of which substances are Transformed into tissues and energy which are used up to mental and physical activities!

explain why you would recommend the nguni cattle meat to consumers in your locality?

Answers

Answer:

Due to their natural growth.

Explanation:

I would recommend the meat of Nguni cattle to consumers in the locality because of their pure quality. These cattles have excellent resistance to internal and external parasites with natural immunity to kill borne diseases. There is no injections or vaccines are given to these cattles which enables them to grow in natural environment. So due to their natural growth, the meat have higher quality as compared to other cattle's meat.

what is the all year round climate present in the philipines

Answers

The average year-round temperature measured from all the weather stations in the Philippines, except Baguio, is 26.6 °C (79.9 °F). Cooler days are usually felt in the month of January with temperature averaging at 25.5 °C (77.9 °F) and the warmest days, in the month of May with a mean of 28.3 °C (82.9 °F).

two types of global food webs show the feeding relationships of organsms. What distinguishes one type of global web from the other?
A whether the producers are located on land or in water
B whether or not the food web includes tertiary consumers
C whether the web includes animals that migrate during the year
D whether the ecosystem described by the web is localized or very broad

Answers

Answer:

A. wheter the producers are located on land or in the water.

The diagram above illustrates the carbon cycle. Which of the Following components of the diagram represent carbon sinks?
A. marine photosynthesis and respiration
B. volcanoes and soil carbon
C. oceans and fossil carbon
D. factories and photosynthesis

Answers

Answer:

D) Factories and Photosynthesis

is eczema recessive or dominant? explain why or how.

Answers

Answer:

When caused by CARD11 gene mutations, atopic dermatitis has an autosomal dominant inheritance pattern , which means one copy of the altered CARD11 gene in each cell is sufficient to cause the disorder.

Explanation:

pls mark brainlest

If y'all know science can y'all do dis, it's a multiple-choice question
' What is the net force required to give a box of mass 5 kg an acceleration of 4 m/s2 ?'

Answers

The answer to the question is

The number 20.

Hope this helps you. Sorry if i am wrong.

What is an amino acid

Answers

Amino acids are organic compounds that contain amino and carboxyl functional groups, along with a side chain specific to each amino acid. Hope this helps!!<3

Answer:

i dont know

Explanation:

bgggfbjn

What elements are in the most common substance in the human body?
A. Carbon and nitrogen
B. Hydrogen and oxygen
C. Oxygen and phosphorus
D. Calcium and nitrogen

Answers

B hydrogen and oxygen

I NEED HELP ASAP
click on the picture to help

Answers

Answer: 1- Central nervous system, thalamus.

2- Because the hypothalamus is part of an unit called Hypothalamus - adeno/neuro hypophysis, that unit synthesizes hormones.

3- Through different cores like supraoptic, paraventricular, etc.

4- Specific hormones (polypeptides, proteins, derived from amino acids, steroids). Those hormones travel in arterias or veins to the diana organs.

5- pituitary gland/ hypophysis

Explanation: -

Consider this plant cell. The organelles in a plant cell are labeled. Part G is the middle layer of the cell. Which organelle is labeled G?

Answers

Answer:

Hi. You didn't show the picture that shows organelle G, but since you showed that organelle is the middle layer of the cell, we can say that it is the plasma membrane.

Explanation:

In general, we can state that the plant cell has three layers, the cell wall, the plasma membrane and the cytoplasm. The cytoplasm is the inner layer, where most of the organelles and the cell nucleus are located. Above the cytoplasm is the plasma membrane, which is semi-permeable and promotes the regulation of the entry and exit of substances from within the cell. Above this membrane is the cell wall, which is an impermeable structure that protects the cell and promotes its rigidity. In this case, we can consider that the middle layer of the cell is the plasma membrane.

WILL IVE BRAIN?? Why might humans not have widespread regeneration abilities?

Answers

Answer: because mammals have more complex biological structures; limb regeneration would require sophisticated controls to ensure that limbs and organs don’t grow out of control.

Explanation:

PLEASE HELP ME PLEASE!!!

Answers

The third one ! :) hope this helped

Starch is a polysaccharide used as a component of cell walls in plants.

True

False

Answers

Answer:

false

Explanation:

is type of carbohydrates

False. Starch is a polysaccharide used as an energy storage molecule in plants, but it is not a component of cell walls.

What are structural component of cell wall?

Cell walls are structural components found in the outermost layers of cells in plants, fungi, and some bacteria. They provide support and protection for the cell, and are composed of a variety of different biomolecules, including cellulose, pectin, and lignin.

Starch, on the other hand, is a complex carbohydrate that is synthesized and stored in the cells of plants, particularly in the seeds, roots, and tubers. It is made up of long chains of glucose molecules and is used by plants as an energy source, particularly during times when the plant does not have access to light for photosynthesis. Starch is not a component of cell walls.

Learn more about cell wall, here:

https://brainly.com/question/965751

#SPJ2

A single species can feed at only one tropic level

True

False

Answers

Answer: True sorry if I’m wrong.

Explanation:

Answer:

True

Explanation:

PLEASE HELP I WILL GIVE BRAINALIST

Answers

Answer:

DNA is double-stranded, but only one strand serves as a template for transcription at any given time. This template strand is called the noncoding strand. ... In most organisms, the strand of DNA that serves as the template for one gene may be the nontemplate strand for other genes within the same chromosome.

Answer:

35. I think ture

36 . true

37.i think False

38.T but it is complementary base pairing

39.

40.you have to use amino acid table for this

The skull and vertebrae are part of the _________ in vertebrates. circulatory system endoskeleton nervous system exoskeleton Science

Answers

Answer:

Endoskeleton

Explanation:

Hope this helps!

Answer:

nerveos systum i think is tha anser

which process produce two genetically distinct haploid cells

Answers

Answer: mitosis

Explanation:

HELP!!!

The tissues that develop from
of a zygote are the direct result of:
a. Meiosis and fertilization
B. Fertilization and differentiation
C. Asexual reproduction and meiosis
D. Differentiation, later,
Fertilization

Answers

Answer:

D. differentiation, later, fertilization

Suggest one other use of glucose in a potato plant that's still growing below ground

Answers

Answer:

glucose is used to make cell walls, make protein amd stored as starch.

Hi, I don’t know what the other uses were in the question for which you can’t use but I have a couple.

> Produce respiration
> Store starch underground, so I knew plant can grow
> Glucose which is soluble is converted into insoluble starch for storage

Hope this helps :)

Please help me with please

Answers

no so do it yourself and get smart

Which of the following best describes the producers in a terrestrial food web?

A) They are at the top of the energy pyramid.
B) They obtain their energy from consumers.
C) They are unaffected by decomposers.
D) They convert energy from the sun to chemical energy.

Answers

Answer:

The correct answer is - D. They convert energy from the sun to chemical energy.

Explanation:

In any food web, producers are the organism that can make their own food and energy by converting light energy coming from the sun into chemical energy, this process called photosynthesis.

Normally producers are green plants. These are present at the bottom of the energy pyramid as these are the highest in the number. Consumers et energy from producers by feed on them.

What bodies of water may be cold

Answers

Answer:

Flowing rivers and streams,Spring-fed bodies of water,Most open water except in tropical regions,

a body can be cold and ice

Explain how Sodium and Potassium exchange during active transport Write your answer in 5 steps

Answers

Answer:

You can use these notes to answer your question

What are the non-living components of an ecosystem?

Answers

Answer:

- Abiotic factors refer to non-living physical and chemical elements in the ecosystem.

- Abiotic resources are usually obtained from the lithosphere, atmosphere, and hydrosphere.

- Examples of abiotic factors are water, air, soil, sunlight, and minerals.

Explain how different types of cells help organisms live and grow?
Different types of cells have different jobs that are necessary to keep organisms alive.
Different types of cells are only found in specific types of organisms.
Cells are necessary in order for all organisms to grow big and hunt for their food source.
Cells provide support for all organisms to be able to move.

Answers

Answer:

Different types of cells have different jobs that are necessary to keep organisms alive. And cells also give the living animal more support. They also hold the genetic information of that organism in their nucules. This is with most cells but bacteria cells do not contain nucules.

Which of the following materials do cone bearing plants produce for reproduction?
O spores and pollen
O flowers
O egg and sperm cells
O anther and stigma
Long

Answers

Answer:spores and pollen

Explanation:

Can someone help with this?

Answers

Answer:

The first option

Explanation:

Answer:

the first one

Explanation:

Spermatogenesis and oogenesis are the processes of formation of male and female gametes. Spermatogenesis leads to the formation of sperms, whereas oogenesis helps in the formation of ova. The fertilization of sperm and ova leads to the formation of a zygote which further develops into an embryo.

Hi I need help with #1 that is shown in the image below. Pls answer and give me a explanation.

Answers

it’s option 3, both types of cells need energy to carry out their functions

Identify what holds DNA, the hereditary information of a cell?

(Its not the nucleus)

PLEASE HELP!

Answers

Answer:

chromatin network or chromosomes

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By what amount should the Land account be increased in 2021 Setze die folgenden Wrter im Text richtig ein:dmmerte, Korb, offenem, Sorgen, Beeren, herrlichsten, verhext, Hof, schrie,wnschte, riesengroer, zitterte, rauer, fhrte, tiefen, Strucher, ngstlich, Tuch,Waldlichtung, berglcklich, Freude, goldenen, Tchterchen, halfen, schlug,geheimnisvolle, zaghaft, sammeln, sorgenfrei, weinte, Not, WaldDaher schickte er sein Tchterchen in denumzuWald Beeren. Aber der Wald war wie verletzt keine einzige Beere warzu finden. Das Mdchen _xie sicery eund wollte gerade nachhause gehen, als pltzlichDas Mdchen itterteein brtiger undMann hinter einem Felsen hervortrat.vor Angst, als er mitStimme fragte: Wasmachst du hier in meinem Wald?" liich suche Beeren. Meine Eltern und ich haben nichtsmehr zu essen", antwortete esJa, aber dein Korb ist ja leer.",,Ach, lieber Herr, ich kann einfach keine Beeren finden." Da nahm derMann das Mdchen an der Handundes in denWald hinein. B. 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