Brad was provided with a piece of bread and egg yolk. He wants to know which component is present in the given food. Suggest him the scientific procedures to find the right component present in each food item.
Answer: Please see explanation column
Explanation:
Sample provided to Brad = a piece of bread and egg yolk
1. We know that Bread is a carbohydrate containing starch
To investigate the presence of starch/ Carbohydrate in Bread
Materials: Bunsen burner,test tubes, food product -Bread,iodine solution
Method
1. Place a sample of bread into the test tube.
2. Place a few drops of iodine solution on the bread
3. Take observations.
4. Wait a few more minutes and note any other changes.
Observations
On addition of iodine to the bread , if we notice a blue-black coloration, we will conclude that the right component found in bread is starch /carbohydrate
The above procedure can also be confirmed using
-Molisch’s reagent–which gives us a purple or violet color ring on addition to the bread
- Fehling’s reagent –which gives a Red precipitate to indicate the presence of in the bread
-Benedict’s reagent –which gives Red precipitate to indicate the presence of carbohydrates in the bread.
-Tollen’s reagent – which gives us Silver mirror to confirm the presence of carbohydrate in the bread.
2. We know that egg yolk contains protein,
To investigate the presence of Protein in egg yolk using biuret test
Materials: Bunsen burner,test tube, food product -egg yolk , Aqueous copper sulfate solution
Method
1. Place a sample of egg yolk into the test tube.
2. Place a few drops of Aqueous copper sulfate solution on the sample of egg yolk
3. Note observations.
4. Wait a while and note any other changes.
Observations
On addition of Aqueous copper sulfate to the egg yolk , if we notice a violet coloration,we will conclude that the right component found in egg yolk is protein
The above procedure can also be confirmed using
Xanthoproteic test – which on addition of Nitric acid to the egg yolk gives a Yellow coloration
Millions test – which on addition of Mercuric sulfate in the presence of sodium nitrite and sulfuric acid to the sample of egg yolk gives Brick red color solution confirms the presence of proteins.
Ninhydrin test – which on addition of Pyridine solution of ninhydrin to the sample of egg yolk gives Violet color solution confirms the presence of proteins.
Help!!!!!! This is a review NOT a test!!!! Marking brainliest!!!!
answer:
i believe you are correct
good luck :)
hopefully, this helps
have a great day !!
In a scenario, salt is placed into a bowl of water. What is the solvent?
salt
water
none of the above
yo can someone give me the answer
Answer:
8. Cytosine
9. Nucleotides
10. Purine
11. Double helix
12. Genetic material
13. Single- ring
14. Double ring
15. Nucleic acids
16. Chromosome
Explanation:
write the name of reproduction process that occurs in tapeworm?
Answer:
Hermaphroditic ReproductionExplanation:
See image for more
Depending on the species and circumstances, tapeworms can reproduce sexually or asexually. Proglottids, the several body segments that make up a tapeworm, are composed of both male and female reproductive cells.
What Hermaphroditic reproduction occurs in tapeworm?Some parasitic species, like the tapeworm, are both hermaphroditic and self-fertile, ensuring reproduction even if the parasite is the only member of its species present in the host.
Because tapeworms are hermaphrodites, each segment has both male and female reproductive organs. As the segment is pulled away from the neck, viable eggs will be released into the environment. When the segment is loaded with eggs, it separates from the adult tapeworm and is excreted in faeces.
Therefore, Hermaphroditic reproduction process that occurs in tapeworm.
Learn more about tapeworm here:
https://brainly.com/question/8663159
#SPJ2
The processes involved with reproduction and nurturing a growing zygote
require energy use beyond normal maintenance. What is the best way certain
organisms reduce the energy costs of reproduction?
A. The parents each take turns nurturing the offspring.
B. They reproduce asexually.
C. They have multiple offspring in one pregnancy.
D. They reduce their gestation period.
Answer:
B. They reproduce asexually.
Explanation:
Asexual reproduction often known as abiogenetic multiplication requires just one parent organism and results in hereditary identical progeny (similar to a new copy). Since there is no blending of genetic data required and organisms don't have to invest energy finding a mate, populaces can increment quickly because of asexual generation. Thus, with the guide of asexual generation, the energy needed in the process associated with multiplication and nurturing is diminished contrasted with sexual reproduction.
explain the difference between mechanical weathering and chemical weathering.
Answer:
below
Explanation:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface. Water, carbon dioxide, and oxygen are important agents of chemical weathering.
Were invertebrates more common? Did most organisms live on land or in the sea?
Answer:
Yes, invertebrates are common than vertebrates. Most organisms started off in the sea, then adapted to live on land.
Explanation:
In the past, the first animals were mostly invertebrates and lived in the water for a certain amount of time. Then, they developed the right body parts to be able to live on the land.
Answer:
invertebrates are animals with no backbone.
HELP PLEASE OTS DUE LIKE IN AN HOUR!!!!!!!!!!
the first one's answer is : Nickel
and the second part's answer is : Green Kryptonite
What are 2 ways in which a xylem vessel is similar to an artery?
Answer:
The xylem and phloem of plants are most similar to veins, arteries, and capillaries. ... In this sense, xylem are completely unlike the circulatory system. Even the sap that flows in a tree has no transport cells like red blood cells and white blood cells; it is a fluid containing loose sugars and nutrients.
The two ways where a xylem vessel is similar to an artery is explained below:
The following information should be considered;
The xylem and phloem of plants are mostly same to veins, arteries, and capillariesXylem are completely unlike the circulatory system. Even the sap that flows in a tree does not contain any transport cells such as red blood cells and white blood cells.Learn more: https://brainly.com/question/1368131?referrer=searchResults
A molecule that can mix with water and a store for energy in the body
Answer:
Glucose
Explanation:
Glucose is a source of energy and it is stored in the body (in the form of glycogen) and it can also dissolve in water
Answer:
liver is the answer plllllllll
Which two organelles are involved in the move-
ment of a cell in its environment?
a. microubules and centrioles
b. fiagella and contractile vacuoles
c. centrioles and the cell wall
d. cytoskeleton and lysosomes
Answer:
Flagella and contractile vacuoles
In pea plants the trait for tall height is dominant over the trait for dwarf height. Which letter should be used to represent the genotype for plant height?
D
F
L
T
Answer:
The correct answer is - T.
Explanation:
Normally, the representation of the trait in the genotype of inheritance pattern is the first letter of the dominant character of the particular trait. In this case, the trait of the height of the pea plant is tall and dwarf.
Tall plants are dominant over the dwarf plant, therefore, the letter T would be used to represent the genotype for the height of pea plant, the small letter of the particular letter would be used to represent the alternate allele of the trait.
Answer:
T :) ️^m^
Explanation:
ONLY ANSWER IF YOU KNOW
What is the main function of the Krebs cycle?
A. To break glucose down into two pyruvate molecules
OB. To produce carbon dioxide for use in the thylakoid
O C. To produce large numbers of ATP molecules
O D. To provide molecules for the electron transport chain
Answer: O D. To provide molecules for the electron transport chain
Explanation:
PLZ HELP I REALLY NEED HELP
Which of the following genotypes for human blood type shows alleles that are codominant?
A. AO (or IAi)
B. AB (or I4IB)
C. BB (or IBIB)
D. AA (or IAIA)
Answer:
B
Explanation:
The IA and IB alleles are codominant, and the i allele is recessive.
please help! it's timed!!!!
ignore my answer and please help!!
Answer:
25% will have curled wings.
Explanation:
i am really sorry if this is wrong. This question was on my unit test on edge so i don’t know if its wrong
Enzymes obtained by microbial process are mixed with detergents?
Answer:
Enzymes obtained by a microbial process are mixed with detergents because it makes the cleaning process efficient. The addition of enzymes to detergents makes them efficient in removing dirt with an added advantage of being able to work at lower temperatures.
Explanation:
Hope this right.But if it's wrong,im so sorry...
Have a nice day
I NEEEEDDD HELP PLEASE
Answer:
the answer is 25%red 50%pink and 25% white
Explanation:
think of it like a box and make that box into 4 pieces put rw on top and rw on the side
In a dihybrid cross, if the genotypes of one the parents is BbTT, what genes would you put on the outside of the Punnett square?
Answers:
BT, Bt, BT, Bt
BT, BT, BT, BT
BB, bb, TT, tt
BT, BT, bT, bT
Answer:
BT, BT, bT, bT
Explanation:
According to Mendel's law of independent assortment, the alleles of a gene will separate into gametes independently of one another i.e. one allele of a gene does not hinder the separation of another. The separation occurs via meiosis in such a way that only one allele of a gene is present in each GAMETE.
These gametes are what forms the crossing basis in a punnet square. According to this question involving a dihybrid cross, the genotype of one of the parents is BbTT. The allelic combination of the gametes will be: BT, BT, bT, bT. These gametes will be put on the outside of the Punnett square.
Answer:
BT,BT,bT,bT
Explanation:
It's 50/50.
Phenylketonuria (PKU) is a disease that is caused by the mutation of a single gene. The mutation can cause several problems, such as mental ret*rdation, lightly colored hair and skin, and lower IQ.
The disease phenylketonuria is an example of how
A.
a single gene can only affect a single trait.
B.
multiple genes can affect a single trait.
C.
a single gene can affect multiple traits.
D.
all of these
Answer:
C ..A single affect multi traits
Answer:
C ..A single affect multi traits
Explanation:
When a warm front is approaching, what happens?
A. advancing cold air pushes up and over retreating warm air causing warm temperatures and mild rain
B. advancing warm air pushes up and over retreating cold air causing warm temperatures and mild rain
Answer:
The air mass behind a warm front is likely to be warmer and more moist than the one before the front. If a warm front is approaching, light rain or light winter precipitation is possible before and as the front passes. Behind the front, expect clearing skies, warmer temperatures and higher relative humdities.
Explanation:
(︶^︶)
Which organelles make up animal cells? pls i have an assignment in 1 hr
Answer:
Organelles in animal cells include the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles
Explanation:
Which field studies the DNA of living
organisms to understand their growth and
development?
3. What is an anti-mycotic?
Answer:
anti-mycotic or Antibiotic-Antimycotic is a type of solution that is most commonly added to cell culture media to basically prevent contamination by any various bacteria and fungi.
B = Short b = Tall P = Mean p = Nice Look at the dihybrid punnett square carefully. How many of the offsprings are both tall and mean?
A) 4 out of 16
B) 8 out of 16
C) 3 out of 16
D) 12 out of 16
Answer:
4 out of 16
Explanation:
What keeps earths temperature suitable for life
Answer: The Earth has a suitable climate for the existence of all forms of life because of moderate amount of carbon dioxide, which is the driving factor for the survival of life forms. The temperature of planet Mercury ranges from 200°c below freezing to 375°c above. Hopes this helps. Can u pls pls pls mark me as brainliest
Explanation:
Which is the best definition of weathering?
settling of Earth’s materials when water slows downb.swelling Earth’s materials as they soak up waterc.breaking up of rocks from wind, water, plants, or animalsd.transport of Earth’s materials by wind, water, or ice
Answer:
Breaking up of rocks from wind , water, plants or animals
Explanation:
this is called weathering
hope it helps
can someone give me a summary of dna replication?
Answer:
dna
Explanation:
DNA replication is one of the most basic processes that occurs within a cell. Each time a cell divides, the two resulting daughter cells must contain exactly the same genetic information, or DNA, as the parent cell. To accomplish this, each strand of existing DNA acts as a template for replication.
What is true of the waste generated by nuclear power?
A: increases greenhouse effect
B: causes air pollution
C: remains hazardous for a long time
D: creates acid rain
(this is science btw)
Answer:
c
Explanation:
Franklin, Watson, and Crick's model of DNA shows a double helical structure where two strands of
DNA run antiparallel to each other. How does this structure cause the number of purines to equal
the number of pyrimidines as observed by Chargaff?
If adenine is on one strand, guanine must be on the other strand.
If thymine is on one strand, cytosine must be on the other strand.
If adenine is on one strand, thymine must be on the other strand.
If adenine is on one strand, cytosine must be on the other strand.
Pregunta 3
5 pts
Answer:
If Adenine is on one strand, thymine must be on the other strand.
Explanation:
(Thymine + Adenine) (TA) (AT)
(Cytosine + Guanine) (CG) (GC)