Why KOH solution is kept in the test tube inside the air tight conical flask while doing the experiment of respiration of seeds?

Answers

Answer 1

Answer:

It is kept inside to absorb the CO2 released by the germinating seeds.

Explanation:

It means it will create a cycle for the flask. So, an equal volume of water rises up in the tube.

Hope it helps.


Related Questions

Which one of these contains an atom of phosphorus?
Nitrogenous base Pentose Sugar Phosphate Group

Answers

Nitrogenous base i think

Explain the unique bonding properties of carbon.

Answers

Atomic number of carbon = 6.Electronic configuration has 2 electrons in k shell and 4 electrons in L shell.In order to attain the noble gas configuration, carbon should either gain 4 electrons or lose 4 electrons or can share it's 4 electrons with some other element.Gain of 4 electrons to form octet , 8 electrons in C⁴‐ anion is difficult because then a nucleus with 6 protons will uave to hold extra four electrons. Loss of 4 electrons to attain duplet , 2 electrons like He atom in C⁴+ cation is difficult as it requires large amount of energy to remove four electrons. Carbon , hence overcomes this difficulty by sharing its four valance electrons with other atoms of carbon or with atoms of other elements. These electrons contributed by the atoms for mutual sharing in order to acquire the stable noble configuration is called covalency of that atom . Hence carbon shows tetracovalency.The simplest molecule formed by sharing electrons, cvalent bonds can represent by electron dot structure.

Carbon , hence overcomes this difficulty by sharing its four valance electrons with other atoms of carbon or with atoms of other elements.

What do you mean by valence electrons?

A valence electron is an electron in the outer shell associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed.

Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

For neutral atoms, the number of valence electrons is equal to the atom's main group number. The main group number for an element can be found from its column on the periodic table.

Learn more about valence electrons:

https://brainly.com/question/22559923

#SPJ2

SHORT ANSWER:
Explain the function of 2 important cell organelles that play role in protein synthesis

Answers

Answer:

Ribosomes and Endoplasmic Reticulum

Ribosomes are the organelles responsible for protein translation and are composed of ribosomal RNA (rRNA) and proteins. ... If the protein in question is a cytoplasmic protein that will not be transported to the cell membrane or secreted, it will be translated on a cytoplasmic ribosome.

hope it helps : D

Explanation:

Assignment 2
1. In a tabular form, outline the functions of the following parts of the human respiratory
system
a. Nasal passages
b. Nasal hair
C. Mucus membrane
d. Pharynx
e. Epiglottis
f. Glottis
g. trachea
h. Rings of cartilages
i Larynx
j. Alveoli



please help ​

Answers

Answer:

a. The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs. Hairs and mucus lining the nasal cavity help to trap dust, before it reached the inner portions of the body.

b. It filtered the air to protect you from illness  irritation of the respiratory tract

c. It traps smaller particles like pollen or smoke.

d. It  regulate the passage of air to the lungs and food to the esophagus. The   throat, is the passageway leading from the mouth and nose to the esophagus and larynx.

e. It seal off the windpipe during eating, so that food is not accidentally inhaled.

f. Glottis opens into the windpipe and is responsible for the production of sound

g. It serves as passage for air and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles.

h. It helps support the trachea while still allowing it to move and flex during breathing.

i. It  produces vocal sounds and prevents the passage of food and other foreign particles into the lower respiratory tracts.

j. It takes up the oxygen you breathe in and keep your body going.

Explanation:

Why is the use of iodised salt advisable?

Answers

Answer:

as iodine is necessary for our body......

Explanation:

Iodized salt is advisable due to the iodine it contains.Iodine is a mineral that is essential for the body,it helps prevent goiter. (the inflammation and swelling of the thyroid gland)

I hope this helps you.

How do you think the four tissue types support the function of the heart? How do the different tissue types support the idea that systems of specialized cells are critical for body functions?

Answers

Answer:

The heart is made up of the four types of tissues. The four different tissue types work together in the heart as they do in the other organs.

Explanation:

If one strand of DNA double helix has the following nucleotide sequence ATCGGTCAAGCTAGG what would the dna complementary stand read

Answers

Answer:

TAGCCAGTTCGATCC

Explanation:

In DNA, there are 4 different nucleotide bases. Adenine (A), Thymine (T), Cytosine (C) and Guanine (G).

A (adenine) always pairs with T(thymine) and C(cytosine) always pairs with G (guanine).

If we have the strand:

ATCGGTCAAGCTAGG  

We have to pair A with T, and C with G. Therefore, the complementary strand of DNA will be:

TAGCCAGTTCGATCC

why do we use safranin

Answers

Safranin is a basic biological dye commonly used as a counter-stain in some of the staining protocols like gram staining.

Hope this helps

Tried to keep it simple

Can you be my friend

cell engulfs microorganisms in cell "eating":
pinocytosis
active transport
phagocytosis
passive diffusion
facilitated diffusion

Answers

I think answer is phagocytosis
Phagocytosis is generally meant by “cellular eating “ , so that makes sense I guess

The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Yellow pods are the dominant trait. The flowchart is missing the labels that describe the traits. A flow chart is shown. A and B both go to C. C goes to both D and E.

Answers

Hello. This question is incomplete. Also, you forgot to show the flowchart. The flowchart is attached below and the full question is:

The flowchart below shows the three generations of a cross between a pea plant that has yellow pods and a pea plant that has green pods. Green pods are the dominant trait. The flowchart is missing the labels that describe the traits.

In which squares should the phrase “Green pods” appear?

1.A and D  2.B and E  3.A,C and D  4.A,B,C,D and E

Answer:

3.A,C and D

Explanation:

As shown in the question above, the flowchart shows the crossing of a pea plant with dominant features (green pods - AA) and a pea plant with recessive features (yellow features - aa). The crossing between plants with AA and aa alleles generates a completely Aa population, which in this case, has the dominant characteristic, that is, it has green pods. This is because the "Aa" alleles are called heterozygous and develop the dominant characteristic.

As we can see in the flowchart, the crossing between the two pea plants generated an offspring that is identified by table C, as we know this offspring has green pods and in the flowchart it is represented by a grayish rectangle. Therefore, we can say that the other gray rectangles represent pea plants with green pods, which are rectangles A, C and D.

Answer:

your answer is option C: A, C, and D only

Explanation:Mark Brainliest pls, im trying to level up ❤️

Genetic disorders can result when sister chromatids fail to separate properly. During which phase is this problem most likely to occur?

A: g1 phase
B:g0 phase
C: Cytokinesis
D:Mitosis

Answers

The correct answer is mitosis

In light-dependent reactions, the oxygen leaves the plants through the ________. *

A. stomata
B. vein
C. cuticle

Answers

Answer:

The Stomata

Explanation:

It transpires water & creates a vacuum to draw more water up the stem

Answer:

A. stomata

Explanation:

In light-dependent reactions, the oxygen leaves the plants through the stomata.

Use the drop-down menus below to identify the organ(s) that is/are responsible for each function of the
excretory system.
releases excess heat from body
reabsorb water to maintain normal composition and volume of blood
and fluids and prevent dehydration
excrete wastes that balance salt

Answers

Explanation:

releases excess heat from the body, which would be sweat glands, excretory system/

reabsorb h2o 2 maintain norm. composition, volume of blood=kidneys.

Answer:

1.skin

2.kidneys and large intestine

3.skin, large intestine, and kidneys

Explanation: got it right

What function do most of the stem cells in adults serve?
A. Differentiating into any type of cell
B. Repairing damaged DNA
C. Replacing damaged tissue
D. Growing new organs

Answers

I think it is going to be B. Repairing damaged DNA.
I think it’s B. Repairing damaged DNA

Which type: Land breeze or sea breeze would most likely form on a warm, cloudless, summer day? How do you know? Explain

THXSSS PLEASE HELP AND HURRY

Answers

Answer:

Explanation:

Sea breeze is a breeze that comes from the ocean to the land. The breeze is usually more when the temperature difference between land and ocean is high especially when it is summer and hot afternoon.

When the temperature is hot both land and water are been heat up, the land begin to release heat and warm air will rise over the land. Water do not get heat up easily hence the air is cooler leading to high pressure on the ocean air then blows from here to the land.

Answer:

Sea breeze.

This is because sea breeze occur on hot summer days which is due to unequal heating on the land surface and sea surface

Explanation:

Land and Sea breezes are as a result of different rate of heating on land or sea surfaces along coastal areas.

Sea breeze occur in a warm, cloudless summer days because of the unequal heating of the land and water surfaces.

During the day, the land surface heat more that the water surface. The air that is above the land become warm and it is warmer than that on the sea surface but the warm air is lighter than cool air. The warm air above the land surface rise, and the cool air on the sea surface rises and replaced the land warm air . This is sea breeze

what is mitochondria a place of in chloroplast once being free orginisms

Answers

Answer:

Power house of the cell

Answer:

powerhouse of the cell

Explanation:

So how you liking Earth? Are you loving your existence ?​

Answers

No, not really. I'm only here because I need points so ask a question for school.

Answer:

CHING CHONG CHINKY WONG

Explanation:

1 pc
If
you are given a quadrat of 1.5 square meters and you count the
dandelions in 10 quadrats and find an average of 2 dandelions per quadrat
area. Use this information to estimate the population density of dandelions
per square meter in a 4500 square meter open field. (make your answer
just the number, round to the nearest 2 decimal places) *
Your answer
In a stable population of rabbits and wolves a government agency enacts a 1 point

Answers

Answer:

1.33 dandelions per square meters

Explanation:

The correct answer would be 1.33 dandelions per square meter of land.

Size of quadrat = 1.5 square meters

Average number of dandelions per quadrat = 2

Total study area = 4500 square meter

Population density = number of organisms per unit area

There were 2 dandelions per 1.5 square meters

How many would be per square meter?

= 2 x 1/1.5 = 1.3333 dandelion per square meters

To 2 decimal places = 1.33 per square meters

what is current pandemic disease spreading in the world​

Answers

Answer:

Corona disease  ( There is no specific treatment for disease caused by a novel coronavirus)

Explanation:)

The virus can cause a range of symptoms, ranging from mild illness to pneumonia. Symptoms of the disease are fever, cough, sore throat and headaches. In severe cases difficulty in breathing and deaths can occur.

.

HAVE A NICE DAY !

Answer:

Corona Virus.

Explanation:

Where do electrons get their energy in photosystem II? A. From energy in photons B. From ADP and ATP C. From NAD and NADPH D. From glucose in Calvin cycle

Answers

Answer:

The photons get captured and their energy is to used to give energy to the electrons.

Answer:

From energy in photons

Are bats blind?Non scientific or scientific question?

Answers

Answer:

No, bats are not blind. Bats have small eyes with very sensitive vision, which helps them see in conditions we might consider pitch black. They don't have the sharp and colorful vision humans have, but they don't need that.

Explanation:

Can you guys plsssss help me with the questions plsss my assigment is already due plss help me guys!!!!!

Answers

Answer:

FOG stands for 'fats, oils and grease'. It is present infood products such as lard, butter, animal fats,  vegetable oils, and dairy products.

FOG is prepared during the process of cooking and the washing up processes. When FOG is allowed n sewer pipes it can accumulates inside sewer pipes, so proper disposal method of FOG is required.

Some of the source of FOG and disposal methods are as following:

Cooking oil -  Allow the oil to be cooled and place it in a non-recyclable container such as plastic-lined paper containers.

Food Scraps: compost bin can be used to dispose FOG by putting all food scrap into it.

Salad dressing - If little maount of salad dressing is left, use a paper towel to clean it and it will absorb the left residue which can be easily dipose in garbage.

Dairy products such as milk - it can be disposed on-farm or to a proper disposal site otherwise it will affect groundsurface as it contain fat.

Hence, using above methods for disposing FOG will help to save envrionment.

Computers would also help kids apply for schools and jobs.
Which of the following is relevant evidence supporting the
claim?
Students who want to go to Brentview
Arts must fill out an online application.
Our parents say Brentview Arts
Magnet School is one of the best
schools in the neighborhood.
Many of us plan to look for part-time
jobs in the summer,
The school also asks for
recommendations, but these can be
sent in by regular mail.​

Answers

Answer:

students who want to go to Brentview Arts must fill out an online application

Explanation:

if the only way to get into Brentview Arts is by doing an application online, then computers would help those students. They can't send it through the mail so the computer would be their only resource

Needed ASAP
The point where the lever rocks back and forth is called _______ or ________

Answers

Answer: the fulcrum

i don't know the other one

Pleaseee help me out.

The T allele codes for tall stems in pea plants and the t allele codes for short stems. If T is
dominant and t recessive, what percentage of the offspring would you expect to have each
phenotype from a cross of Tt x tt?
a. 75**
tall and 25% short
b. 25% tall and 75% short
C. 50% tall and 50% short
d. 25% tall and 25% short

Answers

Answer:

50% tall and 50% short.

Explanation:

T t

t Tt tt

t Tt tt

What is chemical energy, and where is it found in
everyday life?

Answers

Answer:

Chemical energy is stored in chemical bonds and you can find it in the foods we eat.

Explanation:

Answer: Chemical energy are stored in Chemical bonds an example is sodium chloride

Explanation:

Sodium chloride is in Short is Salt. Which have been used to season foods for thousands of years.

suggest why the starch and enzyme solutions were kept at 35°C​

Answers

Answer:

(42) is

[tex]x785[/tex]

What is the evidence for evolution?

Answers

Answer:

foills

Explanation:

provide solid evidence that organism from the past are not the same as found

Which of these stopped operating in 2011? A. space shuttle program B. Kepler Space Telescope C. Hubble Space Telescope D. International Space Station

Answers

Answer:

space shuttle program


Killing pathogens and then using them to provide the body with active immunity is called ______. This is often done in young children.
When the immune system treats otherwise harmless substances, such as pollen, as if they were invaders, a/n ______ can occur.
HIV is a virus that attacks ______ in the body, weakening the immune system.
Polio used to be fairly common and devastating. Thanks to widespread vaccination against polio, the disease is now considered _______, no longer infecting nearly as many people as it once did.
Arthritis is an example of a/n _______, where part of a person’s body is identified as foreign and attacked by the person’s immune system.
Respond to the following based on your reading.

Colonization is largely blamed for bringing smallpox to the Americas. Why was this disease so devastating to Native Americans? Why can we now travel to different parts of the world and avoid contracting analogous diseases?

Answers

Answer:

Killing pathogens and then using them to provide the body with active immunity is called IMMUNIZATION . This is often done in young children.

When the immune system treats otherwise harmless substances, such as pollen, as if they were invaders, a/n ALLERGY can occur.

HIV is a virus that attacks WHITE BLOOD CELLS in the body, weakening the immune system.

Polio used to be fairly common and devastating. Thanks to widespread vaccination against polio, the disease is now considered ABSENT, no longer infecting nearly as many people as it once did.

Arthritis is an example of a/n AUTOIMMUNE DISORDER where part of a person’s body is identified as foreign and attacked by the person’s immune system.

Immunization helps involves the injection of dead pathogens into the bloodstream. This helps in the release of antibodies which helps in protecting the body against further attacks in the future.

Allergy happens as a result of the body system treating and attacking harmless substances.

This is because the ships which brought immigrants into the country had someone who had small pox on board which spread and many got infected and killed due to lack of vaccine and treatment.

Immunization helps people to travel without having to worry about diseases.

Answer:

vaccination

allergic reaction

t-cells

eradicated

autoimmune disease

Europeans had been exposed to the virus that causes smallpox for many generations, allowing them to acquire immunity to the virus. Native Americans were not exposed to smallpox or similar viruses before, so they had no immunity to the virus. In modern times, before traveling abroad, a person often receives vaccinations or other medications to avoid contracting the diseases specific to that region of the world.

Explanation:

Other Questions
write 3x^2/5 in radical form Ravelo Corporation has provided the following data from its activity-based costing system: Activity Cost Pools Total Cost Total Activity Assembly $498,520 44,000 machine-hours Processing orders $54,263 1,100 orders Inspection $77,589 1,100 inspection-hours Data concerning the company's product L19B appear below:Annual unit production and sales 430Annual machine-hours 990Annual number of orders 70Annual Inspection hours 20Direct materials cost $37.74 per unitDirect labor cost $10.45 per unitAccording to the activity-based costing system, the average cost of product L19B is closest to: a. $4819 per unit b. $82.31 per unit c. $85.56 per unit d. $7753 per unit Which graph represents the function g(x) = |x + 4| +2 Divide 8848 by 16(Show working) (25 POINTS)He stands, looking after her, his books still under his arm, while a feeling of total displacement sweeps over him. Mechanically he opens the door; tosses his books on the seat; gets in. You're very good looking. Observing meticulously all traffic signs, all other cars on the road, all pedestrians, being careful, missing no turns. He arrives home safe and intact, and parks in the circular drive so that his father can put his car in the garage. He enters the house through the door in the garage. His mother's car is still missing. There is no one home but him. He goes straight upstairs to his bedroom without taking off his jacket; drops his books on the bed; goes in to the bathroom and turns on the light.Select the correct answer.Which of the following hints was most helpful in deciding the method of characterization used?A. what the person doesB. what others say about the personC. what the person saysD. how the person looks Which sentence demonstrates an error in parallel structure?A. The police arrested the suspect for robbing a bank and because he drove a stolen car.B. The oil spill will destroy animal and plant life in the marsh and will pollute the beaches.C. Before you take that swimming class, you should know how to float on your back and submerge your face.D. To repair the Hubble telescope, astronauts needed to replace the primary camera and the battery units. Following are transactions for Valdez Services, a company owned by Brina Valdez. Brina Valdez invested $20,000 cash in the company in exchange for common stock. The company provided services to a client and immediately received $900 cash. The company received $10,000 cash from a client in payment for services to be provided next year. The company received $3,500 cash from a client in partial payment of accounts receivable. The company borrowed $5,000 cash from the bank by signing a note payable. Required:Prepare general journal entries for the above transactions of Valdez Services. These tables of values represent continuous functions. For which function will the y-values be the greatest for very large values of x? Read the following sentence.Generally, however, the term robot refers to any machine that is able to perform a complex task on its own, but whose actions or tasks are controlled by human programming.This is an example of what is the volume of the pizza box? Use the following information to answer the question: There are three firms in an economy: X, Y, and Z. Firm X buys $400 worth of goods from Firm Y, and $200 worth of goods from Firm Z to produce 250 units of output at $3 per unit. Firm Y buys $250 worth of goods from Firm X and $250 worth of goods from Firm Z to produce 250 units of output at $4 per unit. Firm Z buys $100 worth of goods from Firm X and $500 worth of goods from Firm Y to produce 500 units at $2 per unit. Given this information, using the Value Added approach to eliminating intermediate goods and services (in order to avoid double-counting), what is the economy's GDP Which of the following statements is true of the Alien and Sedition Acts?They were designed to keep immigrants and the French in power.They encouraged Americans to speak out against the government.They were supported by Federalists and not by Democratic-Republicans. A massive oil spill destroys marine habitat and significantly lowers marine populations.Find a solution for this problem Please help me. I don't understand how to work it out. This map shows a portion of the Americas. Which region was freed primarilyby Simn Bolivar?ATLANTIC OCEANPACIFIC OCEANA. Region DO B. RegionO C. Region AOD. Region B During a football game, a quarterback decides to run the ball 45 yards to score a touchdown. How many feet didhe run to score the touchdown? (round to whole number) A company is investing in a solar panel system to reduce its electricity costs. The system requires a cash payment of $125,374.60 today. The system is expected to generate net cash flows of $13,000 per year for the next 35 years. The investment has zero salvage value. QS 24-15 Net present value LO P3 The company requires an 8% return on its investments. 1-a. Compute the net present value of this investment. (PV of $1, FV of $1, PVA of $1, and FVA of $1) (Use appropriate factor(s) from the tables provided. Round your present value factor to 4 decimals.) 1-b. Should the project be accepted? Please help! Correct answer only!For a fundraiser, there is a raffle with 100 tickets. One ticket will win a $150 prize, and the rest will win nothing. If you have a ticket, what is the expected payoff?$ ___ Predict your observation if a magnesium ribbon is put in potassium hydroxide solution and tested with a lighted wooden splinter. To which side of the immigration debate does the following argument apply? The United States has an obligation to help relatives of immigrants enter the country and promote family reunification. No Immigrants Open Borders