Answer:Correct: 1
Erythrocytes form in red bone marrow.
Correct: 4
Hemoglobin is converted to biliverdin.
Correct: 3
Erythrocytes are phagocytized in the liver and
spleen.
Correct: 2
Erythrocytes circulate for 120 days in the bloodstream.
Explanation:
The life cycle of an erythrocyte (red blood cell) involves several stages. Here's the order of the life cycle, beginning with their formation in red bone marrow:
1. Hematopoietic Stem Cell: Erythrocytes are derived from hematopoietic stem cells in the red bone marrow. These stem cells have the potential to differentiate into various types of blood cells, including erythrocytes.
2. Proerythroblast: Hematopoietic stem cells differentiate into proerythroblasts, which are the earliest precursor cells committed to becoming erythrocytes. Proerythroblasts undergo several divisions to produce cells of the erythroblast series.
3. Erythroblast Stages: Erythroblasts progress through several stages of development, including basophilic erythroblast, polychromatic erythroblast, and orthochromatic erythroblast.
4. Reticulocyte Formation: The orthochromatic erythroblast matures into a reticulocyte. Reticulocytes still contain some organelles but lack a nucleus. They are released into the bloodstream and enter circulation.
5. Circulation: Reticulocytes circulate in the bloodstream for about 1-2 days. During this time, they lose their remaining organelles, and their reticulated appearance disappears as they become mature erythrocytes.
6. Mature Erythrocyte: Reticulocytes mature into mature erythrocytes, which are specialized cells optimized for oxygen transport. Erythrocytes have a biconcave shape, lack a nucleus, and are packed with hemoglobin.
7. Functional Period: Mature erythrocytes have a lifespan of about 120 days in circulation. During this time, they transport oxygen from the lungs to body tissues and carry carbon dioxide from tissues to the lungs for exhalation.
8. Removal: Aging or damaged erythrocytes are recognized by macrophages in the spleen, liver, and bone marrow. These macrophages phagocytose the erythrocytes, breaking them down and recycling their components.
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Một đoạn phân tử DNA có 2200 nucleotide. Hãy cho biết đoạn DNA này dài bao nhiêu Å ? Biết một chu kì xoắn có 10 cặp nucleotide (nu), dài 34 Å.
Answer:
10 cm Tôi hy vọng điều này có thể giúp bạn
Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the
person who is standing
4 m away
o 15 m away
0 1 m away
O 12 m away
Answer:
C
Explanation:
Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the person who is standing near the dog that will experience loud barking voice of dog. Thus the correct option is C that is 1m.
What is sound frequency?
Frequency is referred to as pitch that is the number of times per second that a sound pressure wave repeats itself.
The units of frequency are known as hertz (Hz). Humans can hearing can hear sounds between 20 Hz and 20,000 Hz.
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NEED HELP ASAP!!! WILL GIVE BRAINLIEST!!!!
Hom-ozygous tall pea plants look the same as heterozygous tall pea plants. Formulate a pollination experiment to identify whether a tall pea plant is hom-ozygous or heterozygous. Explain your answer in 3-5 sentences.
Answer:
You can cross the plant with hom-ozygote recessive pollen, and the height of the progeny will show whether the plant was heterozygous or hom-ozygous.
Explanation:
Which statement correctly demonstrates the relationship between cellular respiration and photosynthesis?
A: The ATP produced by all cells during cellular respiration can be used by plant cells to produce water molecules during photosynthes
B: The glucose produced by plant cells during photosynthesis can be used by all cells to produce ATP during cellular respiration.
C: The oxygen produced by all cells during cellular respiration can be used by plant cells to produce glucose during photosynthesis.
D: The water molecules produced by plant cells during photosynthesis can be used by all cells to produce oxygen during cellular O respiration.
Answer:
your answer is B. The glucose produced by plant cells during photosynthesis can be used by all cells to produce ATP during cellular respiration.
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
Which biomolecule is structurally important to the cell membrane as it comprises the bilayer?
What did Robert Hooke use to discover cells?
Answer:
A microscope
Explanation:
He observed through a microscope and discovered cells.
Answer:
i belive he used the first microscopes but im not positive that is what your asking
Explanation:
s
which best describes seeds and their role in the alteration of generations life cycle?
Select all the correct answers.
Which two body systems interact to expel the waste product carbon dioxide?
1) urinary system
2) nervous system
3) excretory system
4) circulatory system
Answer:
circulatory system is the answer
Circulatory system and Excretory system
what are the similarities of plant kingdom and animal kingdom
which type of energy is stored in chemical compounds and released in chemical reactions
Answer:
A Chemical Energy
Explanation:
Chemical energy, Energy stored in the bonds of chemical compounds. Chemical energy may be released during a chemical reaction, often in the form of heat.
Answer: chemical energy
Explanation: took the test!
which part of human heart carry oxygenated blood........
Answer:
Left Atrium
Left Atrium Hope this helps :)
What type of organism is the tuberculosis bacterium, a multicellular or unicellular organism? Explain.
Answer:
Explanation:
Multicellular
if you start with one double-stranded dna molecule and you perform six cycles of pcr, how many double-stranded copies of the dna will you have?
Answer:64
Explanation:
The DNA stands for deoxyribose nucleic acid. The DNA has all the genetic information stored in it that will transfer to the next generation. The DNA is made from the following:-
Deoxy sugarPhosphate groupNitrogenous baseThe PCR stands for the polymerase chain reaction. This process its amplify the DNA content and multiply it. The PCR has three steps which are:-
Denaturation.AmplificationAnnealingAccording to the question, the DNA amplifies its content by 6 times and the amount of DNA will be 64.
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What are the main superorders for the class Monocotyledonae?
Answer:
According to Sterm’s Introductory Plant Biology 15th edition, there are four subclasses in the class Monocotyledonae, including Commelinidae, Liliales, Alismatales, and Acorus.
What is the most medial muscle of the leg?
Answer:
gracilis muscle
Explanation:
Calculate the total resistance (in Ohms) of a light bulb marked 2V and 3A. Do not add units. Leave your answer as a decimal to 2 decimal places.
The total resistance of a light bulb marked 2V and 3A is 0.67ohms
HOW TO CALCULATE RESISTANCE:
The resistance of a substance can be calculated by using the formula as follows:R = V/I
Where;
R = resistance (in ohms)V = voltage (in volts)I = current (in amperes)According to this question, a light bulb is marked 2V and 3A. The resistance (R) can be calculated as follows:R = 2V ÷ 3A
R = 0.67ohms.
Therefore, the total resistance of a light bulb marked 2V and 3A is 0.67ohms.Learn more at: https://brainly.com/question/8776047?referrer=searchResults
3. What muscle is diretly beneath the biceps?
Answer:
coracobrachialis muscle
how many calories are in an average trick-or-treaters halloween stash?
The number of calories on a Halloween stash depends on the type of candies and the number of units of each. If the stash contains 5 units of each of these candies: chocolate bars, taffies, lollypops, and candy corn the total number of calories is 1,650.
Calories are the most common unit used to define the energy a specific food gives to your body. For example, an apple has 52 calories, while a banana has 89 calories.
Considering this, in a Halloween stash the calories depend on two factors:
The types of candies or productsThe units of each oneLet's suppose there are 5 units of each of the following candies:
Chocolate barsTaffiesLollypopsCandy cornLet's now calculate the calories
Chocolate bars = 220 calories x 5 units = 1,100 caloriesTaffies = 20 calories x 5 units = 100 caloriesLollypops = 83 calories x 5 units = 415 caloriesCandy corn = 7 calories x 5 = 35 caloriesAdd all the previous results:
1,100 + 100 + 415 + 35 = 1,650 calories in total
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You wake up in the morning and get out of bed. Does the floorfeel cold or warm on your bare feet? On the lines below, write asentence that compares how it feels to step on a bare floor and ona rug on a cold morning.
what is a major difference between messenger rna molecules and transfer rna molecules?
Answer:
1) Messenger RNA molecules contain ribose, and transfer RNA molecules contain deoxyribose.
2) Messenger RNA molecules function in carrying coded information to the ribosomes, and transfer RNA molecules function in carrying amino acids to the ribosomes.
The major difference between messenger RNA molecules and transfer RNA molecules is that messenger RNA carries the genetic information, while tRNA carries the amino acids.
What is RNA?RNA is ribonucleic acid. In the cell, different types of RNA are found, such as mRNA (messenger RNA), tRNA (transfer RNA), rRNA (ribosome RNA), SnRNA, miRNA, etc. mRNA, or messenger RNA, is formed from DNA. It carries the information of a cell. The three consecutive nucleotides of mRNA make up a codon. An example of a codon is AUG.
tRNA has a cloverleaf-like structure. It has different domains such as the TΨC loop, the DHU loop, the anticodon region, and at the 3' end it is attached to an amino acid. The anticodon of the tRNA reads the codon sequence of the mRNA and attaches the amino acids. For the AUG codon methionine is attached.
Hence, the main difference between the messenger RNA and transfer RNA molecules is that mRNA carries the message of the genetic material, while tRNA carries amino acids to express the genetic material on mRNA.
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How does the human immune system work
Answer:
The acquired immune system, with help from the innate system, produces cells (antibodies) to protect your body from a specific invader. These antibodies are developed by cells called B lymphocytes after the body has been exposed to the invader. The antibodies stay in your child's body.
Give two examples of types of weather that you experience where you live. Give two examples of weather you don’t experience where you live. colorado
Answer:
New Zealand
Explanation:
I live in New Zealand where it's only winter and sometimes rain. There is hardly any sunlight so I will say I lest experience summer ☀️
what is the main difference between a cell nucleus and a nucleoid
the beginning of the menstrual function is known as
PLEASE HELP
which of the following should be a characteristic of a stable ecosystem
a. an increase in human interference
b. an obundance of biodiversity
c. a high number of predators and a lesser number if producers
d. a lack of interdependence of organisms
Answer:
b. an obundance of biodiversity
I need this now,I'll give you 100 points for answer 10 questions.
#1. Negatively charge particles in an atom *
A. resistance
B. Ohm's Law
C. electrons
#2. the rate of current flow in a circuit (intensity) *
A. resistance
B. current
C. voltage
#3. a source of electricity that provides direct current to a circuit *
A. electrons
B. cell (battery)
C. switch
#4. The relationship between voltage, current and resistance. V=IR *
A. Amperes
B. Ohm's Law
C. Voltmeter
#5.The difference in electrical potential energy between two places in a circuit (the push) *
A. Voltage
B. Resistance
C. Current
#6. a device used to open and close a circuit *
A. cell (battery)
B. wire
C. switch
#7. a material's opposition to the flow of electric current (slows the flow) *
A. Current
B. Resistance
C. Voltage
#8 a form of energy caused by the movement of electrons *
A. electricity
B. circuit
C. mechanical
#9 something that uses energy (example: light bulb) *
A. load
B. power
C. wire
#10 to move freely *
A. resistance
B. current
C. flow
Answer:
1) B
2) C
3) C
4) C
5) C
6) A
7) A
8) A
9) A
10) C
Explanation:
Hope this helps
Explain what is happening below
Explanation:
enzyme + substrate complex =
A substrate is a molecule that an enzyme reacts.
enzymes catalyze chem. reactions with substrates. Substrates transform into 1 or more products. released from " active site," substrate is then able 2 receive another substrate molecule.
Answer:
An enzyme is catalyzing a reaction.
Explanation:
Two substrates bind to the active site of the enzyme. The enzyme catalyzes the reaction (lowers the activation energy needed to complete the reaction), and the result is the final product: two substrates bound together, and an enzyme that can go on to catalyze more reactions.
which two locations are most likely to have both earthquakes and volcanoes?
A. convergent plate boundaries
B. divergent plate boundaries
C. transform plate boundaries
D. central areas of plates
Answer:
it's both A and B
example the junction between the eurasian plate and indo-Australian plate (region near the Himalayas) that is prone to earthquakes
Explanation:
brainliest plz
the green color of leaves is evidence that green light is:
How do hydrogen ions get transferred from the Light Reaction to the Calvin Cycle?
Answer:
A photon of light hits chlorophyll, causing an electron to be energized.
The free electron travels through the electron transport chain, and the energy of the electron is used to pump hydrogen ions into the thylakoid space, transferring the energy into the electrochemical gradient.