A small piece of black paper was folded in half and used to cover part of the top and bottom portions of a leaf on a living geranium plant. After the plant was kept in sunlight for several days, the paper was removed. The leaf was then boiled in alcohol to remove the chlorophyll and placed in Lugol's iodine solution. Only the part of the leaf that had not been covered turned blue black. This investigation was most likely testing the hypothesis that

Answers

Answer 1

Answer: Light is necesarry for photosynthesis to occur

Explanation:

Based on the information given in the question, the investigation was most likely testing the hypothesis that light is necesarry for photosynthesis to occur.

Photosynthesis, simply means the process by which green plants transform light energy into chemical energy. It should be noted that during photosynthesis, light energy is captured which is then used in the convertion of carbon dioxide and water, into oxygen and energy which comes in form of sugar.

Answer 2

Answer: This investigation was most likely testing the hypothesis that SUNLIGHT is necessary for photosynthesis

Explanation:

Photosynthesis can be defined as the process by which plants (green plants) use inorganic compounds such as carbondioxide and water to manufacture their own food. This process is not only important to plants but also to animals which depends on plants for food. The main features of photosynthesis include:

--> it takes place in chlorophyll of plant cells

--> Raw materials needed for this process are inorganic compounds such as carbondioxide and water

--> Final products are organic compounds such as sugar and oxygen as by product.

--> Energy needed for this process is gotten from SUNLIGHT which is absorbed by the chlorophyll.

To show that sunlight is necessary for photosynthesis, an experiment is performed as stated in the question above. Only the part of the leaf that had NOT BEEN covered turned blue black because the exposed part has been actively photosynthesizing due to the presence of SUNLIGHT. While the covered part didn't undergo any photosynthesis as it tested negative for starch when placed in Lugol's iodine solution.


Related Questions

somebody help pls I’m pretty sure it’s negative but I don’t know if it’s maintain or disrupt

Answers

Answer:

negative and maintain is the answer

Negative and maintain

39 In a DNA molecule, if 38% of the molecular bases are C(cytosine), what percent of the bases are T (thymine)?
(1) 12
(3) 38
(2) 24
(4) 62

Answers

12
Explanation:
cause double of 38 is 62 and subtract that from 100 is 24 and divided that by 2 is 12

A circular ring of DNA that typically exists in bacteria and that codes for certain traits is known as a/n

Answers

Answer is  Plasmid.

A plasmid is a small, circular, double-stranded DNA molecule that is distinct from a cell's chromosomal DNA. Plasmids naturally exist in bacterial cells, and they also occur in some eukaryotes. Often, the genes carried in plasmids provide bacteria with genetic advantages, such as antibiotic resistance.

How can a mutation get into a population?

Answers

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

Answer:

Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.

Explanation:

How do particles move when a surface wave passes through a medium?
A. Parallel to the direction of wave motion
B. Perpendicular to the direction of wave motion
C. Both parallel and perpendicular to the direction of wave motion
D. Neither parallel nor perpendicular to the direction of wave motion

Answers

Answer:

perpendicular to the motion of the wave.

Explanation:

when in a medium, they only go up and down or back and forth meaning the wave won't ever move the left or right side of the particles, so it is perpendicular

hope this is trusted helper for brainly material

Answer: it’s both parallel and perpendicular to the direction of a wave motion

Explanation:

3) In order for an ecosystem to thrive, it needs to exist in a form of harmony and balance between its biotic and abiotic factors. Describe how small changes to both biotic and abiotic components can have major effects on an ecosystem.

Answers

Answer:

Changing temperature causes extinction or removal of organism from that place.

Explanation:

Small changes to both biotic and abiotic components can have major effects on an ecosystem because these are the factors on which the ecosystem depends. For example, if the temperature of the ecosystem increases from its limit, it makes the environment unfavourable for the organism so due to this change, the organism migrated to other location otherwise they will die due to unfavourable environment.

in your own words, what is the definition for Exocytosis?

Answers

Answer:

the release of cellular substances.

Explanation:

hope this helps

During which phase of the cell cycle are chromo-
somes copied?

Answers

Answer:

S phase

Explanation:

S phase is the second phase of interphase (longest phase where cell grows and replicates it's DNA and does it function. It is broken up into smaller sub phases). S phase is the synthesis phase. During this phase chromosomes are replicated ( The DNA is copied).

How are meiosis and mitosis different?

'FREE BRAINLIEST INCLUDED'

Answers

Answer:

a is the write answer

Explanation:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Hope that helps :)

Which structures do plant cells have for making food that animal cells do not?

Answers

Answer:

chlorophyll is the answer

Chloroplasts are the food producers of the plant cell

What do sea squirts eat?​

Answers

Answer:

sea squirts eat plankton

Explanation:

According to the graph, which region's population is expected to get smaller
between 2010 and 2050?

Answers

Answer:

Europe

Explanation:

it's the only line that slopes downward between 2010 and 2050

 The graph below shows how the level of carbon dioxide in the atmosphere has changed over the last 150,000 years Which environmental factor has been most recently affected by these changes in carbon dioxide level?
1. light intensity
2. size of consumers
3. types of decomposers
4.atmospheric temperature

Answers

Atsmopheroc tempature

What does "synthesis" mean?
A. to read DNA

B. to tear apart

C. to make something

Answers

Answer:

I believe it is C to make something

C. To make something

Mutations cause _______ to the body shape, size, color, or function of the organism that inherits the mutation.
A. a brand new species to pop up

B. clones

C. variations

Answers

Answer:

C. Variations

Explanation:

Mutations are genetic disorders, they do not cause clones. Various breeding and deformities over centuries can cause new species, but they are not the same as genetic mutations.

Answer:

C. variations

Explanation:

Mutations cause variations to the body shape, size, color, or function of the organism that inherits the mutation.

Because the imaginary axis of the earth is inclined to the sun at the equator, the northern and southern hemispheres shine in different ways. When it is summer in the northern hemisphere of our planet, then it is winter in the southern hemisphere

Answers

Answer:

Yes.

Explanation:

Yes, when it is summer in the northern hemisphere of earth, then it is winter in the southern hemisphere. This change of season occur due to tilting of earth. The season of northern hemisphere and southern hemisphere are different and opposite to each other because both are present at opposite location on the earth surface. The tilting region experience winter season whereas the other regions experience summer due to direct sunlight.

62.5 milligrams into grams

Answers

Explanation:

62.5 = 0.0625 g

your answer is like this

Does the volume increase with trial number, decrease with trial number, or stay about the same? Explain why you think the results are the way there are. There are many possible reasons for the data trend you see. Give some that you think are reasonable.

Answers

Hi. You have not informed the experiment that this question refers to and this makes it difficult for your question to be answered. However, I researched your question on the internet and was able to find a question like yours that featured an experiment that assesses the volume of balloons that have been inflated by people's breath.

With the reading of the experiment, we can see that the volume of the balloons remains the same through the number of tests. This is because our lungs tend to express the same amount of air when we blow, just as we tend to breathe the same amount of air in normal situations. This probably happened because all the balloons were filled with air, while the individuals were in the same physical and mental state, that is, they were relaxed and still, which did not change the amount of air they breathed and expelled. This volume of air would be different if the participants in the experiment were exerting some physical effort or were stressed and anxious.

please help meeeeeeeeeee.

Answers

Answer:

T = A

A = U

G = C

A = U

A = U

C = G

Pea plants can have yellow seeds or green seeds. Which conclusion about the meaning of Y is correct if the allele combination Yy is for yellow seeds?

Answers

Answer:

yellow and dominant

Explanation:

In genetics, complete dominance occurs when a gene variant referred to as 'dominant allele' completely masks the expression of another allele referred to as 'recessive allele' in heterozygous individuals (i.e., individuals carrying one copy of the dominant allele and one copy of the recessive allele) at a specific locus. In this case, the yellow (Y) allele is dominant for the trait of 'color seed' with regard to the recessive (y) allele, which is responsible for the phenotype of green seeds, and therefore heterozygous individuals (Yy) will have yellow seeds.

Which statement best describes energy entering the living world?

a) solar energy to chemical energy

b) chemical energy to solar energy

c) solar energy to heat energy

d) heat energy to solar energy

Answers

Answer:

a. solar energy to chemical energy

Answer:

A .Solar energy to chemical energy

Explanation:

what was the major theme in the story Lizzie Bright and the Buckminster boy?

Answers

Answer:

Love as expressed in healthy, giving human relationships is the overriding theme of the story. It is the essence of religion, the ultimate truth, the logical expression of freedom, and the cure for racism and intolerance

Explanation:

Cuanto más fría es la temperatura en un lago, más oxígeno retiene el agua. Daniel se da cuenta de que pesca más peces en un lago que está a menos de 55 grados. Quiere realizar un estudio para capturar la mayor cantidad de peces posible este año. Necesita un poco de ayuda para escribir una pregunta comprobable y una hipótesis. Por favor ayudarlo.

Answers

Answer:

- Pregunta ¿la temperatura incide en la cantidad de oxígeno disuelto en el agua del lago?

- Hipótesis: temperaturas más frías están directamente asociadas con un incremento en la cantidad de oxígeno disuelto en el agua del lago

Explanation:

Para poder aplicar el método científico, lo primero que debemos hacer es formular una pregunta sobre algún fenómeno observado en el mundo natural. A continuación debemos formular una explicación posible o 'hipótesis' que permita responder la pregunta que formulamos anteriormente. A partir de la hipótesis podemos diseñar experimentos y/o observaciones empíricas que permitan probar la veracidad de nuestra hipótesis de trabajo. En este caso, por ejemplo, el experimento podría consistir en la medición y posterior comparación del nivel de oxígeno disuelto en el agua del lago durante la temporada de altas temperaturas versus la temporada de bajas temperaturas. Finalmente, los resultados observacionales/experimentales nos permitirán comprobar o rechazar la hipótesis de trabajo (en este caso, nuestra hipótesis es que el nivel de oxígeno disuelto es mayor a bajas temperaturas), obteniendo de este modo una conclusión a partir de nuestro trabajo.


[tex]what \: is \: endoplasmic \: reticulum \: {?} \: [/tex]

Answers

Answer:

They are elaborate network of channels running through the cytoplasm. There are two types of endoplasmic reticulum. They are; Rough and smooth endoplasmic reticulum. Rough endoplasmic reticulum are rough because of the presence of ribosomes. Smooth endoplasmic reticulum are smooth because they dont have ribosomes.

meaning:an extensive intracellular membrane system whose functions include synthesis and transport of lipids and, in regions where ribosomes are attached, of proteins

if water were a nonpolar molecule, how would its properties be different

Answers

Explanation:

If water were a nonpolar molecule how would its properties be different A. Water would be able to climb inside plants. ... Water would stick together much more strongly.

SKILL: READING EFFECTIVELY
In the space provided, write the letter of the part of the brain that best matches the
description.
1. regulates balance
a. cerebrum
b. cerebellum
2. leads to the spinal cord
c. brain stem
3. largest part of the brain
4. divided into two hemispheres
5. pons is located here
6. contains the corpus callosum
7. responds to information about body position

Answers

Answer:

1. cerebellum

2. brainstem

3. cerebrum

4. cerebrum

5. brainstem

6. cerebrum

7. cerebellum

Explanation:

The cerebellum is a region of the brain located behind the top part of the brainstem, which coordinates voluntary movements (e.g., posture, balance, coordination, speech). The cerebellum is well known to regulate the balance of the body. The brainstem is a type of automatic control center that connects the cerebrum with the spinal cord. The pons represents a group of nerves that serve as connection between the cerebrum and cerebellum. The pons are located in the brainstem (between the midbrain and the medulla oblongata). The cerebrum is the largest part of the brain and can be divided into right and left hemispheres. These hemispheres communicate with each other by the corpus callosum.

if you have been victimized by fake news how can you respend?

pasagot plss!!!​

Answers

Question

If you have been victimized by fake news how can you respond?

Answer

If i have been victimized by fake news i already do.. is to stop the spreading of these fake news This goes beyond just not sharing news stories until i have determined they are genuine, but also not sharing fake news. When you share a piece of fake news you are raising its publicity and advertisement revenues.

Hope my answer will help you ^^

#LearnWithBrainly

Evaluating resources
As we have seen, information on the Internet can take many forms and come from a variety of sources. Critical news consumers need to be able to review this information to determine who is writing it, who is publishing it, why it was written, and assess the content of the piece. To do this, you must be able to evaluate your sources.

Explore the Library's Evaluating Resources guide for useful information on evaluating websites and evaluation methods.

2
2.When chemical bond are formed
energy is released.
True
False

Answers

Answer:

true

have a nice day and good day

Choose all the right answers. All plant and animal cells have: cellulose cytoplasm nucleus cell wall membrane

Answers

Answer:

cytoplasm

Explanation:

I rlly hope this helps. its what I remember but goodluck

Answer:

hope this helps

Explanation:

Animal cells and plant cells share the common components of a nucleus, cytoplasm, mitochondria and a cell membrane.

In biology, evolution explains exactly how life began on Earth

A. True

B. False

Answers

Answer:

I would say False. But not 100% sure.

Explanation:

Hope this helps you in some way.

The answer is false which is B
Other Questions
Heavy use of long-term debt can be of benefit to a firm to help expand, although it adds to the firm's overall level of risk.A. True B. False. On June 1, 2018, Crane Company and Cheyenne Company merged to form Ayayai Inc. A total of 876,000 shares were issued to complete the merger. The new corporation reports on a calendar-year basis. On April 1, 2020, the company issued an additional 637,000 shares of stock for cash. All 1,513,000 shares were outstanding on December 31, 2020. Ayayai Inc. also issued $600,000 of 20-year, 8% convertible bonds at par on July 1, 2020. Each $1,000 bond converts to 44 shares of common at any interest date. None of the bonds have been converted to date. Ayayai Inc. is preparing its annual report for the fiscal year ending December 31, 2020. The annual report will show earnings per share figures based upon a reported after-tax net income of $1,491,000. (The tax rate is 20%.)Determine the following for 2020.(a) The number of shares to be used for calculating:(1) Basic earnings per share(2) Diluted earnings per share(b) The earnings figures to be used for calculating: (1) Basic earnings per share(2) Diluted earnings per share #4. Find the missing angle measures james wrote the number 8980000 in scientific notation Does anyone know the answer to this? Determine the required value of the missing probability to make the distribution a discrete probability distributionP(4)=____X P(x)3 0.254 ?5 0.396 0.15 solve in Multi step equations for x What was Frederick Douglass contribution to abolitionism? What is your position on the issue of reparations and restitution to African-Americans to help offset the historical legacy of slavery and racial segregation in America since 1865? Do you think the US government in 2020 should provide some sort of monetary reparations to African-Americans as compensation for the legacies of slavery and ongoing institutionalized racism? How do I balance this?_CuC12 + _NaNO3 _CU(NO3)2 + _ NaC1 help please!! will give brainly for full answers 1) Many detaches the two wires from the battery and reattaches them to the opposite terminals. Explain how this changes the current and magnetic field.2) Suppose you pull the paperclips away from the nail. Explain how the potential energy between the paperclips and the nail changes. Who knows the answer Which is NOT a characteristic of a solid?a) All solids have a definite shape.b) All solids have molecules that are loosely packed together.C) All solids have mass.d) All solids take up space Determine the volume of a helium balloon given the balloon was filled from a container 0.15L of gas at 2 atm if the new pressure is 0.97 atm. Assume constant temperature. determine the equation of the circle graphed below .( help please ) Evaluate 64^1/2 times 10^-2 If nominal GDP is $1,200 billion and, on average, each dollar is spent five times in the economy over a year, then the quantity of money demanded for transactions purposes will be?Choices 1,2006,000600240960 A race car starts from rest on a circular track of radius 378 m. The car's speed increases at the constant rate of 0.580 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.a. The speed of the race carb. The distance traveledc. the elapsed time Please help due today Determine: SHOW ALL WORK a. Predetermined factory overhead rate. $ b. Determine the factory overhead applied assume the actual direct labor hours for Job 50 was. 20000 and for J0b 51 was 24000 . $ c. Determine the balance in the factory overhead account assuming that the actual cost