During starch test why is leaf boiled in ethanol?
A) to kill its Protoplasm
B) to soften it
C) to extract its chlorophyll
D) to retain its starch

Answers

Answer 1

Answer:

think its C cause when you boil it almost loses all its colour


Related Questions

do fertilised eggs divide to form a foetus

Answers

For the first 12 hours after conception, the fertilized egg remains a single cell. ... During the first 8 or 9 days after conception, the cells that will eventually form the embryo continue to divide
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Tania looks at several different multivitamins in the store and notes that there are many different formulations with
varying amounts of several types of vitamins. She would like to choose a brand that only has the essential vitamins
that humans need to consume.
What are the vitamins that Tania should verify are in the product that she purchases?
O vitamins A, B, C, D, E, and K
O vitamins A, B, C, E, and K
O vitamins A, B, C, D, and E
O vitamins A, B, C, D, E, F, and K

Answers

The answer is A.

There are 13 essential vitamins. Vitamins A, the multiple B vitamins, C, D, E, and K.

Though plants, fungi, and prokaryotes all have cell walls, we place them in different taxa. Which of these observations comes closest to explaining the basis for placing these organisms in different taxa, well before relevant data from molecular systematics became available?

Answers

Answer:

Due to other differences.

Explanation:

The plants, fungi, and prokaryotes all have cell walls, we place them in different taxa because of the other differences such as mobility, mode of nutrition etc. Plants and fungi are not mobile means can not move from one place to another whereas prokaryotes are mobile. Fungi and prokaryotes are heterotrophs means that feed on other organism whereas plants are autotrophs means make their own food. There is also difference in their cell wall i.e. the cell of plants is composed of cellulose, the cell wall of prokaryotes especially bacteria is composed of peptidoglycans and the cell wall of fungi is composed of chitin.

A mutation occurred in the following DNA sequence AGCCTAGCC and the mutated form is now AGCCTTAGCC. Which of the following correctly describes the result of this mutation?

1.A deletion occurred so all of the amino acids added after the mutation may be wrong.

2.An insertion occurred so all of the amino acids added after the mutation may be wrong.

3.A substitution occurred so all of the amino acids added after the mutation will definitely be wrong.

4.An insertion occurred so all of the amino acids added after the mutation definitely will be different.

Answers

Answer:

Explanation:

1.A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the replicated strand.

2.This type of variant results in a shortened protein that may function improperly, be nonfunctional, or get broken down. An insertion changes the DNA sequence by adding one or more nucleotides to the gene.

3. A substitution mutation can cause the following: Change in the coding of amino acids codon to a particular stop codon resulting in an incomplete protein, which is usually non-functional. Can cause Silent mutations where a codon change can encode the same amino acid resulting in no changes in the protein synthesized.

4. when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.

The purpose of Mendel's experiments with dihybrid crosses was to determine
whether:
A. an F2 generation could be produced from the Fi offspring.
B. one of two traits could be transformed by DNA.
O c. one trait would affect how another is inherited.
D. traits are controlled by more than one gene.

Answers

Answer:

C. one trait would affect how another is inherited

Explanation:

a) What is the earth's path around the sun called? b) How long does it take for Earth to complete a complete circuit around the Sun? c) Name one planet that is closer to the Sun than Earth and another one that is further away. .​

Answers

A) orbit
B) 365.25
C) mercury and Uranus respectively
Planet Earth's orbit around the sun, it's called Orbit.

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It takes Earth 23.934 hours to complete a rotation on its axis and 365.26 days to complete an orbit around the sun — our days and years on Earth are defined by these gyrations.

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Kid-Friendly Neptune

It's the last of the planets in our solar system. It's more than 30 times as far from the Sun as Earth is. Neptune is very similar to Uranus

What is the best description of connective tissue? Question 3 options: All of its cells rest on a basal lamina. All of its cells associate via cadherins in their plasma membrane. All of its cells are electrically connected via gap junctions. All of its cells are sparsely distributed in the extracellular matrix.

Answers

Answer:

Connective tissue is a group of tissues in the body that keep the body and its organs in shape while also providing cohesion and internal support.

All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

What is connective tissue?

Tissue that sustains, protects and provides structure to other tissues and organs in the body. Connective tissue also stores fat, permits the movement of nutrients and other substances between tissues and organs, and allows the repair of damaged tissue. Connective tissue exists created up of cells, fibers, and a gel-like substance.

Connective tissue is discovered in between other tissues everywhere in the body, including the nervous system. The three outer membranes (the meninges) that surround the brain and spinal cord exist composed of dense inert connective tissue.

Connective tissues bind systems together, form a framework and support for organs and the body as a whole, store fat, transport substances, defend against disease, and assist restoration of tissue damage.

Hence, All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

To learn more about connective tissue refer to:

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HELPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!! All of the following cause mechanical weathering EXCEPT ____. a. ice c. burrowing animals b. tree roots d. carbonic acid

Answers

Explanation:

c. burrowing animals is the answer

Laying the groundwork for the 'germ theory' of disease _________ discovered that organisms cannot spontaneously arise, but must be introduced into an environment.
A. Anthony Van Leeuwenhoek
B. Louis Pasteur
C. Robert Hooke
D. Ernst Ruska

Answers

The answer you are looking for is B.Louis pasteur

Laying the groundwork for the 'germ theory of disease, Louis Pasteur discovered that organisms cannot spontaneously arise, but must be introduced into an environment.

Who was Louis Pasteur?

Louis Pasteur was a chemist and microbiologist. He is known for the discovery of vaccines, fermentation, and pasteurization.

The germ theory is given by Pasteur. He first of all states that process fermentation is done by living organisms, bacteria, and yeast.

Thus, option B. Louis Pasteur is correct.

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A farmer decides to try to increase his profits by mating his two goats that produce the most milk together. The farmer’s descendants continue the process and over 400 years the family produces goats that make more milk than any in the country. Eventually the goats change enough that they are designated a new species. This is an example of:

A. Artificial selection
B. Acquired characteristics
C. Disruptive selection
D. Natural selection

Answers

D. Natural Selection

Answer:

A.is the correct answer

Explanation:

People have been doing asimple form genetic enineeringfor thousands of years. This is called selective breeding. Selective breeding, or artifical selection, is a process where people try and improve plants and animals by selecting and breeding those that have desireable charactistics.

For example, a farmer might choose from his two largest cattle in his herd and breed them  together so that the offspring will be even bigger and produce more meat.

Name TWO disorders that may occur within this body system and discuss cause/diagnosis/treatment
Help plz

Answers

Answer:

Cancer and Arthritis

Explanation:

Some causes of cancer include smoking, obesity, and lack of nutrition. Cancer is diagnosed using a biopsy. A biopsy is a procedure in which the doctor removes a sample of tissue. A pathologist looks at the tissue under a microscope and runs other tests to see if the tissue is cancer. Some treatments for cancer include Chemotherapy, surgery, Radiation therapy, and bone marrow transplant.

The most common cause of arthritis is usually if your family has a history of arhritis. It is usually diagnosed with an x-ray or a blood test. Treatment includes Painkillers, physical therapy, and exercise.

different between dominant character and recessive character​

Answers

Dominant character:are always expressed when the connected allele is dominant,even if only one copy of the dominant trait exits.

Recessive character:are expressed only if both the connected allele are recessive.

Answer:

Dominant and recessive traits exist when a trait has two different forms at the gene level. The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait.

Explanation:

If some traits are absent or not expressed, but found in the parent, then the allele is said to be recessive.

Difference Between Recessive and Dominant Traits

DOMINANT

Dominant Trait Recessive Trait

Dominant allele is denoted by a capital letter

RECESSIVE

Recessive allele is denoted by a small letter

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How fast does E. coli manifest symptoms A. 3 mins B. 3 hours C. 3 days D. 3 weeks

Answers

Answer:

C. 3 days

Explanation:

Answer:

c

Explanation:

2-5 days after exposure is when symptoms show

taken from the minnesota department of health

Predict: Some pathogens are spread directly from one person to another. This can happen when people come into direct contact or share items, such as drinking glasses. What do you think might affect how quickly a pathogen is spread from person to person?

Answers

I think the reservoir ( a human,animal or non living such as soil where the infectious agent normally lives)

secondly the mode of transmission,there are some modes of transmission that allow the pathogen to enter quickly and some that make the process slow.

and also crowding and the presence of co-infections.

i hope this helps

carbohydrate are store in animal cell in the form of​

Answers

Answer:

molecule glycogen

Plants store carbohydrates in long polysaccharides chains called starch, while animals store carbohydrates as the molecule glycogen.

Glycogen molecule, which is found in the cytosol of the cell

Which of the following is not used to hold liquids?
a.
flask
b.
graduated cylinder
c.
balance
d.
test tube

Answers

Answer:

C. balance

This is because it is because a balance is an even distribution of weight hence balance is not used to hold the liquid instead a balance is used to weigh the liquid

Answer:

c. balance

Explanation:

the scientific name of the great egret has recently been changed from Casmerodius albus to Ardea alba. What is a possible reason for the reclassification of egrets?
A) Allopatric speciation
B) Discovery of a different ancestor
C) A change in the mating behaviors
D) A change in their habitat and geological range

Answers

Answer:

B) Discovery of different ancestry

Explanation:

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predict what happen to the human and the plants if the transport system are affected​

Answers

I think we'll be scared and panicked and some people will die of overthinking

Which of the following terms is the life
cycle of a living cell?
A. g1
B. cell cycle
C. interphase
D. mitosis

Answers

Answer:

cell cycle is the term of the life cycle of a living cell

what is photosynthesis?​

Answers

Answer:

Photosynthesis is the process by which plants prepare food using water, sunlight, chlorophyll and carbon dioxide

Answer:

It is the process in which green plants use sunlight to make there own food .

Explanation:

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Some of the cell membrane functions are similar to the ________ of the body.

Answers

the skin has cells like that

An actin-binding protein called cofilin binds preferentially to ADP-containing actin filaments rather than ATP-containing actin filaments. Based on this preference, which is true? Question 7 options: Cofilin binds to the plus ends of treadmilling actin filaments. Cofilin competes with profilin for binding to actin. Cofilin binds to older actin filaments. Cofilin binds to the plus ends of actin filaments.

Answers

Answer:

Cofilin binds to older actin filaments

Explanation:

Microfilaments (also called actin filaments) are a class of protein filament common to all eukaryotic cells, which consist of two strands of subunits of the protein actin. Microfilaments form part of the cell's cytoskeleton and interact with the protein myosin in order to allow the movement of the cell. Within the cell, actin may show two different forms: monomeric G-actin and polymeric F-actin filaments. Microfilaments provide shape to the cell because these filaments can depolymerize (disassemble) and polymerize (assembly) quickly, thereby allowing the cell to change its shape. During the polymerization process, the ATP that is bound to G-actin is hydrolyzed to ADP, which is bound to F-actin. ATP-actin subunits are present at the barbed ends of the filaments, and cleavage of the ATP molecules produces highly stable filaments bound to ADP. In consequence, it is expected that cofilin binds preferentially to highly stable (older) filaments ADP-actin filaments instead of ATP-actin filaments.

what is the relationship between an enzyme and the substrates it can bind

Answers

Answer:

Enzymes and substrates bind to each other associating through various interactions, including hydrogen bonds, hydrophobic interactions, and covalent bonds.

Why ulva is not placed in kingdom plantae

Answers

Answer:

Because Ulva is an algae. Algae belongs to kingdom Protista.

Explanation:

Ulva is a Macroalgae because it's not microscopic.

Macroalgae is not considered as a plant due to their structure. Macroalgae do not have specialized organs and tissues, and they are not vascularized. They also do not have the capacity to form a structure with flowers, leaves, roots or a stem.  

Name the following.

(a) Tissue that forms the inner lining of our mouth.

(b) Tissue that connects muscle to bone in humans.

(c) Tissue that transports food in plants.

(d) Tissue that stores fat in our body.

(e) Connective tissue with a fluid matrix.

(f) Tissue present in the brain​

Answers

a) epithelial tissue
b) tendon
c) phloem
d) adipose tissue
e) blood
f) gray matter and white matter.

The___ cycle is not a nutrient cycle

Answers

Answer:

use

Explanation:

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In 1970, Frye and Edidin published research describing the mobility of plasma membrane proteins. They fused mouse and human cells together, creating a hybrid cell, and then examined the localization of mouse and human proteins over time. Initially mouse and human proteins were each restricted to one-half of the heterokaryon, but over time the mouse and human proteins mixed, with each being present over the entire cell surface. What technique did Frye and Edidin likely use to examine the mouse and human proteins

Answers

Answer:

The answer is "fluorescent microscopy".

Explanation:

A microscope featuring fluorescence is just the same as a conventional light microscope with additional features. Conventional microscopy employs visible light (400-700 nanometers) to illuminate and generate an enlarged image data. Scientists use this highly sensitive, precise, dependable, extensively to see the location of chemicals in tissues and macrophages in organs.

scientists who believe global warming is happening would agree with which of the following statements?
(A) There are few, if any, misconceptions about global warming
(B) Most scientists agree that global warming is occuring
(C) Human activity is a minor cause of global warming.
(D) There is little humans can do to stop global warming

Answers

Answer:

B. Most scientists agree that global warming is occurring.

Explanation:

There is a large deal of misconception in the public surrounding global warming. Human activity is the primary cause of global warming, and therefore, there are many actions that humans could take to stop global warming.

Convert 90 centuries to minutes using the method of dimensional analysis.

Answers

[tex]\huge\text{Hey there!}[/tex]

“[tex]\large\text{Convert 400 mm to m}[/tex]”

[tex]\large\text{Just simply divide 400 by 1,000 and you will have your result.}[/tex]

[tex]\mathsf{\dfrac{400}{1,000}}[/tex]

[tex]\mathsf{= \dfrac{400\div200}{1,000\div200}}[/tex]

[tex]\mathsf{400\div 200 = \bf 2}[/tex]

[tex]\mathsf{1,000 \div 200 = \bf 5}[/tex]

[tex]\mathsf{= \bf \dfrac{2}{5}}\rightarrow\mathsf{\bf 0.4}[/tex]

[tex]\boxed{\huge\textsf{Therefore, your ANSWER is: \boxed{\bf \dfrac{2}{5} \ or \ 0.4}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

pls answer this question i think easy

Answers

Answer:c

Explanation:it must be c if im wrong then sue me!

Answer:

B. Food is broken into simpler molecules.

Explanation:

these small molecules are; proteins, amino acids, glucose, e.t.c

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Please help me find the nouns and adjectives for this passage What is the value of the expression i 0 i 1 i 2 i 3 i 4?11ii What does the m stand for in the enthalpy equation? Linear equation: -12(6x + 10) = 13Step 1: 3x 5 = 13Step 2: 3x = 18Step 3: x = 6Which sequence describes the inverse operations used for steps 2 and 3 to solve the linear equation? Match the following vocabulary words A construction manager just starting in private practice needs a van to carry crew and equipment. She can lease a used van for $3,510 per year, paid at the beginning of each year, in which case maintenance is provied. Alternatively, she can buy a used van for $5,185 and pay for maintenance herself. She expects to keep the van for three years at which time she could sell it for $1,330. What is the most she should pay for uniform annual maintenance to make it worthwhile to buy the van instead of leasing it, if her MARR is 20% The probability that Dan buys a sandwich is 0.2.The probability that Dan gets the bus is 0.9.Assuming the events are independent, what is the probability that Dan buys a sandwichand gets the bus? Zoe's Dog Biscuits, inc, has net cash flows from operating activities for the last year of $226 million. The income statement shows that net income in $150 million and depreciation expense is $85 million. During the year, the change in inventory on the balance sheet was an increase of $14 million, change in accrued wages and taxes was an increase of $15 million and change in accounts payable was an increase of $10 million. At the beginning of the year the balance of accounts receivable was $45 million. What was the end of year balance for accounts receivable? A. $20 million B. $25 million C. $45 million D. $65 million How are meiosis and mitosis different? Materials costs of $720000 and conversion costs of $800800 were charged to a processing department in the month of September. All materials are added at the beginning of the process, while conversion costs are incurred uniformly throughout the process. There were no units in beginning work in process, 120000 units were started into production in September, and there were 8000 units in ending work in process that were 30% complete at the end of September. What was the total amount of manufacturing costs assigned to those units that were completed and transferred out of the process in September please help me divide this fractions, showboat work. O_O Adophus, Inc.'s 2010 income statement reported total revenues of $850,000 and total expenses (including $40,000 depreciation) of $720,000. The 2010 balance sheet reported the following: accounts receivable beginning balance of $50,000 and ending balance of $40,000; accounts payable beginning balance of $22,000 and ending balance of $28,000. Therefore, based only on this information and using the indirect method, the 2010 net cash inflow from operating activities was: Every decimeter on a map represents 11.5 kilometers of actual distance. On this map,specific points M and N are exactly 235 decimeters apart. Therefore, points M and N areactually how many kilometers apart? Write your answer as a mixed fraction. Which expressions are equivalent to -6n+(-12)+4nChoose all answers that apply:A. 4(n-3) -6nB. 2(2n-6)C. None of the above A glass block in air has critical angle of 49. What will happen to a ray of light coming through the glass when it is incident at and angle of 50 at the glass air boundary? Illustrate with a diagram -3 , 1 , 5 , 9 , 13find the 11th term of this sequence show your working Transactions that affect earnings do not necessarily affect cash. Identify the effect, if any, that each of the following transactions would have upon cash and net income.(a) Purchased $100 of supplies for cash.(b) Recorded an adjusting entry to record use of $20 of the above supplies.(c) Made sales of $1,200, all on account.(d) Received $800 from customers in payment of their accounts.(e) Purchased equipment for cash, $2,500. What is the value of X? A historian is examining religions role in history which question might the historian ask if she were organizing her study by period Suppose the line y = 2.8333x - 22.4967 describes the relation between the club-head speed (in miles per hour), x and the distance a golf ball travels (in yards), y.(a) Predict the distance a golf ball will travel if the club-head speed is 100 mph. (b) Suppose the observed distance a golf ball traveled when the club-head speed was 100 mph was 265 yards. What is the residual? (c) The golf ball will travel 260.8 yards. (Round to the nearest tenth as needed.) (d) The residual is:_________ (Round to the nearest tenth as needed.)