The image below shows one muscle cell. Please choose the name of the structure that is labeled A.
1. Myosin
2. Actin
3. myoglobin
4. troponin
Answers
The name of the structure labeled as A is 'myosin'. Moreover, the name of the structure labeled as B is 'actin'.
A sarcomere is the basic unit of muscle contraction. This unit is defined as the region between two Z-lines.
Band A is a central band composed of the thick filaments of myosin.
Moreover, the sarcomere also has two halves of a band known as I-band, which consists of thin filaments of actin.
Muscle contraction is caused by the interaction between actin and myosin protein filaments in the sarcomeres.
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Related Questions
What is a concentration of mineral fragments at the bottom of a streambed called? Choose the correct answer.
O nodule
O placer deposit
O native element
O hydrothermal solution
Answers
Answer:
B. Placer deposit
Explanation:
Quizlet called "7-1 Science Mineral Resources" with answers
what are the four bases that make up the rungs of the dna ladder
Answers
All of the following are examples of genetic drift EXCEPT:
A. A beetle gets stepped on B. A rabbit gets swept away by a tornado
C. An elephant drinks a protozoa living in a puddle D. A light colored moth does not camouflage on a dark
colored tree and gets eaten by a bird
Answers
C. AN ELEPHANT DRINKS A PROTOZOA LIVING IN A PUDDLE.
HOPE IT HELPS YOU
what is the main substrate in the first step of glycolysis?
Answers
Glycolysis starts with one molecule of glucose and ends with two pyruvate (pyruvic acid) molecules, a total of four ATP molecules, and two molecules of NADH.
Which two statements describe force?
A. Force causes an object's motion to remain constant.
B. A force can have mass or weight.
C. Force is the ability to change an object's motion.
D. A force can be a push or a pull.
Answers
Answer:
D. a force can be a push or a pull and A.
what enzyme catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate?
Answers
structurally, atp is most like which type of molecule?
Answers
Answer:
ATP full name is Adenisin Triphosphate, therefor the molecule would look similar to adensisine, the nucleotide.
Explanation:
Structurally, ATP is most like RNA type of molecule. Therefore, option (A) is correct.
ATP and RNA are nucleic acids, macromolecules made of nucleotides. Cells employ high-energy ATP for energy. Adenosine has three phosphate groups.
RNA also helps gene expression and protein synthesis. Nucleotides comprise ribose sugar, phosphate, and one of four nitrogenous bases (adenine, guanine, cytosine, or uracil).
Ribose sugar and phosphate groups make ATP and RNA structurally similar. Unlike RNA, ATP possesses a high-energy phosphate bond. This additional phosphate bond makes ATP a good energy currency for cells. Therefore, option (A) is correct.
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Your question is incomplete but your full question was:
Structurally, atp is most like which type of molecule?
A. RNA molecule
B. Vitamin molecule
C. Amino acid
D. Fatty acid
Which of the following is a population?
Answers
Answer:
D. All of the fish, bacteria, and mammals that live in a lake (i think)
what are some examples of diffusion in living organisms
Answers
Answer:
Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:
oxygen moves down a concentration gradient from the air in the alveoli to the blood.carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.Answer:
oxygen moves down a concentration gradient from the air in the alveoli to the blood.
carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli.
Explanation:
The praying mantis is an example of a(n)
Answers
Answer:
Insecta
The genus Mantis is in the family Mantidae, of the mantis order Mantodea. Some of its species have the common name "praying mantis".
a scientist is studying the various prokaryotic and eukaryotic species found floating in a sample of water taken from a marine ecosystem. which cellular component will be found in the widest range of organisms in the sample?
Answers
PLEASE HELP I NEED ANSWER RIGHT NOW ASAP. 100 POINTS TO WHOEVER ANSWERS FIRST AND ALSO BRAINLEST!!!!!!!!!!!!! :)
Look at the following graph, which shows the average number of offspring had by mice per year with certain traits. Based on the data, which traits are advantageous to the species?
Answers
Explanation:
The traits more sensitive noses is advantageous to the species
ماهو تركيب الجينينوم البشري؟
Answers
Answer:
لدى البشر جينومان ، نووي وميتوكوندريا
Answer: يشتمل الجينوم النووي على ما يقرب من 32000000 نيوكليوتيدات من الحمض النووي ، مقسمة إلى 24 جزيء خطي ، وأقصر 5000000 نيوكليوتيد في الطول وأطول 260000000 نيوكليوتيد ، كل منها موجود في كروموسوم مختلف.
Explanation:
What are 4 facts about Earth's outer layer? Subject: Science 7th grade Plate motion.
Answers
The outer core is the third layer of earth It is mainly made up of the metals iron and nickel
The outer core is responsible for earths magnetic fields
The magnetic field protect the earth from harmful particles that come from the sun
A certain sugar has no change in color when tested with Benedict’s solution. Can you tell what type of sugar it is? Explain.
Answers
Answer:
a certain sugar has no change in color when tested with benedict solution. can you tell which saccharide it is? no because it could be poly or disaccharide. what is the chemical formula for a polysaccharide molecule that contains 4 glucose molecules?
Sucrose
Sucrose (table sugar) contains two sugars (fructose and glucose) joined by their glycosidic bond in such a way as to prevent the glucose undergoing isomerization to an aldehyde, or fructose to alpha-hydroxy-ketone form. Sucrose is thus a non-reducing sugar which does not react with Benedict's reagent.
Explanation:
Sugars which give no color in Benedicts test are non-reducing sugars. Sucrose, a non reducing sugar does not undergo a color change in Benedict's test.
What is Benedict's solution?Benedict's solution is a chemical reagent containing copper sulphate pentahydrate and mixtures of sodium carbonate and sodium citrate. It is used to test the presence of reducing sugars.
A positive Benedicts test gives color change of blue to brick red precipitate whereas, non-reducing sugars does not give a positive result.
Sucrose contain fructose and glucose, they do not reduces the copper ion in Benedict's solution because there are no free aldehydes or ketones in sucrose.
Thus, sucrose does not reduce and will not give a color change in Benedict's test.
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many promoters of a hypothetical conserved gene have mostly adenines and thymines. what is the most likely reason for this high proportion of adenines and thymines?
Answers
Based on the data collected and what you have learned about osmosis and the three treatment options, rank the treatments from most effective to least effective. What do you predict?
Answers
Although I could not locate the options in order to provide a ranking, I can offer the insight that a hypertonic saline solution will be the most effective form of treatment.
I believe you are referring to the full case study which says :
"Your goal is to stop Clark's seizures by restoring equilibrium between the blood and the matrix. Based on the data collected and what you have learned about osmosis and the three treatment options, rank the treatments from most effective to least effective. What do you predict?"
A hypertonic saline solution is used to draw water out of cells by creating an increased concentration of solute in the blood, forcing the water out of the cell through osmosis.
Clark's seizures may be caused by Increased solute concentrations in the brain which forces water from blood to move into the brain, thus increasing the matrix pressure. This then causes the neurons to fire at an increased rate and leads to the seizures Clark was experiencing.
Hypertonic saline can be used to increase solute concentrations, in this case, Sodium, in the blood which forces water to move back into veins. Thus returning Clark to a balanced level of blood and matrix water levels, and may reduce his likelihood of seizures.
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Answer: A hypertonic solution would be most effective. Isotonic Saline would be least effective and so would Hypotonic.
Explanation:
how do nonsteroid hormones differ from steroid hormones?
Answers
Answer:
Nonsteroid hormones act via signal transduction pathways and steroid hormones do not act via signal transduction pathways.
Explanation:
If the black horse is homeozygous, what is its genotype?
Answers
Answer:
the genotype is BB.
Explanation:
Please help!!! Quickly!!!!
Answers
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The Correct choice is " a "
Many organisms eat at multiple trophic levels.
Answer:
The feeding relationships of organisms in the real world is almost always more complex than suggested by a food chain. For that reason, the term food web is more accurate than is food
chain.
Explanation:
hope its hepl
The tails of the cell membrane are ____________ while the phosphate heads are ___________.
Hydrophilic, Hydrophobic
Hydrophobic, Hydrophilic
Flexible, Hydrophobic
Water Loving, Flexible
Answers
Explanation:
The tails of the cell membrane are __hydrophobic__ while the phosphate heads are __hydrophilic__.
I hope the following image helps to further explain the answer.
The tails of the cell membrane are hydrophobic while the phosphate heads are hydrophilic. The correct option is B.
What is the structure of cell membrane?The phospholipid bilayer, which forms a stable barrier between two aqueous compartments, is the membrane's fundamental structure. These compartments are the inside and outside of the cell in the case of the plasma membrane.
The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment.
The membrane of the cell is composed of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
The heads (phosphate) are polar, whereas the tails (lipid) are non-polar. The heads, which form the outer as well as inner linings, seem to be "hydrophilic" (love water), whereas the tails, which face the cell membrane's interior, are "hydrophobic" (water fearing).
Thus, the correct option is B.
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what would make the earth's plates stop moving
Answers
Answer:
Slab Resistance would make the earth's plates stop moving
Explanation:
Answer:
Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!
Explanation:
what would make the earth's plates stop moving?
If the earths mantel would be really cold then the earth's plates would stop moving.
Some species of hares are brown most of the year, but change color to white in the winter. This allows them to
blend in through the seasons.
Where are these organisms adapted to live?
O deciduous forests
O desert
O tropical rain forests
O savanna
Answers
The virus hijacks bacterial molecules and organelles to make new viruses. For example, bacterial (amino acids/lipids) and (mitochondria/ribosomes) are used to make viral proteins.
Answers
what are the most likely question that will come in an exam
Answers
Question Types:
Multiple ChoiceTrue/FalseMatchingShort AnswerFill-in-the-blanksEssaysOral ExamsCheckboxesMultiple choice, objective response, or MCQ (for Multiple Choice Question) is a form of an objective assessment in which respondents are asked to select only correct answers from the choices offered as a list.
True/False tests contain statements that the student marks as being either true or false. In order to qualify as true, all parts of the statement must be true. In general, true-false tests check your knowledge of facts.
A matching question is two adjacent lists of related words, phrases, pictures, or symbols. Each item in one list is paired with at least one item in the other list. Matching may be considered to be a variant of multiple-choice in which more than one choice is correct.
While opinions may differ, most teachers believe a short answer question typically requires a "short" answer. That doesn't mean an answer lacking depth analysis or information. It simply means an answer that is concise and includes just enough information to accurately and fully answer the question being asked.
Fill in the Blank questions are not opinion-based, which means that learners must be able to use the information they have mastered during the lesson to correctly answer the question. Fill in the Blank questions usually contain a sentence or paragraph featuring a blank space.
Definition of the essay question: an examination question that requires an answer in a sentence, paragraph, or short composition Examples of the essay question in a sentence.
The oral exam (also oral test or viva voce; Rigorosum in German-speaking nations) is a practice in many schools and disciplines in which an examiner poses questions to the student in spoken form. The student has to answer the question in such a way as to demonstrate sufficient knowledge of the subject to pass the exam.
A Checkboxes question lets survey takers select multiple answers from a list of choices. Use this question when you want people to be able to choose more than one answer option in the same question. Jump to...
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https://help.surveymonkey.com/articles/en_US/kb/Available-question-types-and-formatting-options
http://personal.psu.edu/bxb11/QuizQuestions/quizmatching.html#:~:text=A%20matching%20question%20is%20two%20adjacent%20lists%20of,in%20which%20more%20than%20one%20choice%20is%20correct.
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What are 2 characteristics of the plasma membrane?
Answers
Answer:
they have flexibility and they help transport materials in and out of a cell
major difference between positive and negative feedback loops?
Answers
Answer:
Negative feedback loop-keeps in check
Positive feedback loop- increases quality of another variable
Explanation:
the allowance for uncollectible accounts is a contra account to
Answers
The allowance for uncollectible accounts refers to a company that accepts the risk of giving credits to those who may not pay it back. These debts are written off as uncollectable and are a contra asset on the balance reports.
Uncollectable accounts are also often referred to as doubtful accounts. This implies that the company that is giving the credit accepts the possibility that this entity may not return the money. This results in a loss for the company as is recorded as a contra asset on the balance sheets for the company. Some ways for companies to control this loss are:
Establishing requirements for creditsUsing credit collectors to claim large debtsLimiting amount of loss permitted based on historical and industry records.A contra asset or contra account is an account on a companies balance sheet that decreases the balance of certain assets. Contra derives from Latin and means against. Meaning this is an account that goes against the positive balance of the company, it subtracts from the companies earnings.
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the merger between _____ resulted in the first production-distribution-exhibition firm with a truly national theater chain.
Answers
The merger between Famous Players-Lasky and Balaban & Kat resulted in the first production-distribution-exhibition firm with a truly national theater chain.
Famous Players-Lasky in collaboration (merged) with Balaban & Katz that was a chicago-based theater chain who had a lot of large auditoriums in the Midwest. The merger brought about the first production distribution-exhibition firm with a truly national theater chain. It was later named Publix Theaters. Paramount-Publix became the firm's name.Conclusively, we can say that the merger between Famous Players-Lasky and Balaban & Kat resulted in the first production-distribution-exhibition firm with a truly national theater chain.
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Students created note cards comparing characteristics of eukaryotic and prokaryotic cells.
Which set of note cards most accurately compares these cells?
Answers
Given what we know about Eukaryotic and Prokaryotic cells, we can confirm that the note card labeled "F" is the one that best compares these two cell types.
Eukaryotic and Prokaryotic cells have many differences to discuss, the ones mentioned in note cards, however, are:
The presence of membranes surrounding organelleThe location of the DNA for each cellProkaryotic cells are cells that lack any organelle or nucleus. This is due to the absence of membranes, which are needed to maintain the structure of the organelle. Due to the lack of membranes and therefore of a nucleus, the DNA of these cells can be found floating in the cytoplasm. Table F is the only one that accurately represents these traits.
Eukaryotic cells, on the other hand, are those that do possess membranes. The presence of membranes allows the eukaryotic cells to have a nucleus that can contain their DNA. This cell type is that of most multicellular organisms, whist the prokaryotic are known most commonly as bacteria. Once again, table F is the one that best represents this data.
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