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the diagram shows two cells found in human blood.
a. the actual diagram of
red blood cell is 0.007mm ( 7 um) in diameter.
Calculate the magnification of the diagram. show your working.
side note: I measured it in a ruler and it's 2.3 cm = 23 mm (drawn to scale)
Answers
a)
Actual diameter = 0.007 mm
Diameter of scaled diagram = 2.3 cm = 23 mm
Formula to use:
Magnification = scaled dimension/actual dimension
Magnification = 23/0.007
Magnification = 3285.714... → x3286
b)
Red blood cells (RBCs), otherwise known as erythrocytes, don't have nuclei and organelles such as mitochondria, are smaller than WBCs and have a biconcave disc shape ideal for purpose
c)
i.
RBCs transport oxygen inhaled into the lungs around the body to all tissues and organs
ii.
RBCs are void of organelles so they are maximally packed with haemoglobin to bind and transport oxygen;
The biconcave disc shape is ideal for flowing through the blood vessels, particularly the capillaries, optimising them for transporting oxygen;
The small size also helps in being able to circulate the vasculature effectively and successfully
a)Actual diameter = 0.007 mm
Diameter of scaled diagram = 2.3 cm = 23 mm
Formula to use:
Magnification = scaled dimension/actual dimension
Magnification = 23/0.007
Magnification = 3285.714... → x3286
b)Red blood cells (RBCs), otherwise known as erythrocytes, don't have nuclei and organelles such as mitochondria, are smaller than WBCs and have a biconcave disc shape ideal for the purpose.
c)i.RBCs transport oxygen inhaled into the lungs around the body to all tissues and organs
ii.RBCs are void of organelles so they are maximally packed with haemoglobin to bind and transport oxygen;
What are RBCs?The biconcave disc shape is ideal for flowing through the blood vessels, particularly the capillaries, optimising them for transporting oxygen;The small size also helps in being able to circulate the vasculature effectively and successfully.
Thus, these are the answer.
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Related Questions
Onion root tips contain cells that are constantly dividing. Why was it important to use the onion roots tips to observe chromosomes during mitosis rather than a cell from another part of the plant?
a. Because cells in the leaves do not have DNA or chromosomes.
b. Because chromosomes only form during mitosis, one part of cell division
c. Because root cells are naturally purple, so you can see the chromosomes
d. Because cells in the leaves only divide, but do not undergo mitosis.
Answers
Explanation:
the answer to your question is A
Onion roots are used to see mitosis because of rapid growth at the onion tips and at the stage of mitosis,leaves of the plants has division in the cells but there is no mitosis. the correct answer is option D.
What is the significance of mitosis ?The significance of mitosis is that in the stage the chromosomes are paired and the pairing of this homologous chromosomes makes the chromosomes visible at the equatorial plate.
Leaves do not undergo cell mitosis as they do show the cell division from various types of tissues but the mitosis is absent and the root cells show rapid division in the lateral sides and because of roots being the active site of division, these are considered more to see mitosis happening.
Thus, mitosis being absent in leaves takes the roots to be considered option.
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need help on this question!!!
Answers
Answer:
I think it's The Kingdom
movement of xylem sap from roots to leaves __________.
Answers
Answer:
trandpiration
Explanation:
(i think)
__________ are intestinal parasites that can live up to 20 years and grow up to 50 feet in length. A. Toxoplasmosis B. Amoebae C. Malaria D. Tape worms Please select the best answer from the choices provided. A B C D.
Answers
Answer:
D. Tapeworms
Explanation:
I took test EDG2022
The stomata are flattened stacks of sacs and the --(blank)-- is a sticky substance where complex organic products of photosynthesis are made.
A. stomata
B. stroma
C. grama
Answers
the answer is well stomata
Answer: C
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Question 41 A basement membrane anchors Multiple choice question. A) muscle tissue to nervous tissue. B) epithelial tissue to connective tissue. C) connective tissue to muscle tissue. D) brain tissue to nervous tissue. E) blood cells to plasma.
Answers
Answer:
B) Epithelial tissue to connective tissue
Explanation:
What is the function of mitosis?
a) To produce four unique cells for sexual reproduction
b) To change one type of cell to another type of cell,
c) To heal a cell that has been damaged,
d) To produce two identical daughter cells to sustain an organism
Answers
Answer:
c
Explanation:
sorry if it's wrong but yea
Answer:
d
Explanation:
PLEASE HELP ME IM TIMED!
Answers
Answer:
Prokaryotic and anaerobic
Hope this helped
help plz and thank you
Answers
Answer:
A
Explanation:
A) all cells contain DNA, and DNA is all composed of adenine, thymine, guanine, and cytosine.
B) not all cells have a nucleus. For example, prokaryotes have no nucleus
C)Not all cells have a cell wall.(Animal cells don't)
D) not all cells have mitochondria (Prokaryotes don't)
Answer:
I think it is D
Explanation:
Sorry If I'm wrong
C1 and C2 vertebrae are also known as:
A. axis and radius
B. atlas and axis
C. atlas and radial
D. sacrum and coccyx
Answers
Answer:
B
Explanation:
#platolivesmatter
at what point in meiosis do sister chromatids separate?
Answers
Answer:
anaphase II
Explanation:
This is when the string like things pull the sister chromatids and move them towards opposite poles. And then in the next step they began to separate as two different cells
at what point in meiosis do sister chromatids separate?
Answer :Anaphase
Anaphase: During anaphase, the centromere splits, allowing the sister chromatids to separate.
When dissolved carbon dioxide (CO2) combines with ocean water it forms a(n)
Answers
Answer:
Carbon dioxide (CO2) dissolves in the ocean and reacts with water to form carbonic acid—which in turn generates bicarbonate, carbonate, and hydrogen ions. Calcium and carbonate ions combine to form the solid calcium carbonate crystals in their shells and skeletons.
Explanation:
All nine essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity
Answers
Answer:
All 9 essential amino acids can be found in meat. By employing the nutritional principle of complementarity, a vegetarian gets all nine. What is complementarity? Combining foods that complement each others essential amino acids.
Explanation:
I hope this helps!
a can of pop has a mass of 0.30 kg. what is the weight of that can on earth
Answers
Answer:
the same but I would need to see the answer
PLEASE PLEASE SOMEONE HELP PLEASE BRAINILY I ASSURE YOU
Answers
Salt marshes, mangroves, and seagrass beds absorb large quantities of the greenhouse gas carbon dioxide from the atmosphere and store it, thus decreasing the effects of global warming. ... Carbon sequestration — the process of capturing carbon dioxide from the atmosphere, measured as a rate of carbon uptake per year
noaa
Scientists find cell with a genetic mutation in the cyclin dependant kinase gene. The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How would this impact the cell cycle of that cell
Answers
Answer:
The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How will this impact the resulting daughter cell? Explain. If cyclin molecules did not bind to CDK, the cell could not progress through the cell cycle.
Explanation:
I could be wrong...if I am I'm very sorry
Headlands are formed through wave deposition
True or False
Answers
Answer: True
Explanation: The movement of water and sediment down a beach caused by waves coming in to shore at an angle. A beach formed by longshore drift that projects like a finger out into the water. A sea arch is formed through wave erosion. Headlands are formed by through wave deposition.
Predict how the absence of phytoplankton in the coral reef could affect the entire community
Answers
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Producers– These are autotrophic organisms which make their food through photosynthesis. Green plants, algae, and chemo-synthetic bacteria are all examples of producers in marine habitats.
what color indicates the presence of a high level of simple sugars
Answers
Answer:
Brown
Explanation:
Greens the lowest while Brown is the highest
label the diagram below of the root cross section
Plzzzzz help ASAP
Answers
The labeling of the root cell is as follow:
The outer red part is the Epidermis. The inner white part is the Cortex. The innermost pink part is the Xylem.Parts of a Root Epidermis - protects the tissues. Cortex - allows for transportation of materials. Xylem - allows for transportation of water.In conclusion, the root is quite complex and has various parts to allow it fulfil its functions in keeping the plant alive.
Find out more about the xylem at https://brainly.com/question/14197052.
A fatal central nervous system disorder caused by more than 35 repetitions of a particular set of three base pairs is:
Answers
Answer:
Huntington's Disease
Explanation:
Match each part of the lungs with the correct label.
Answers
Answer:
1 Right Horizontal Fissure
2 Left Superior Lobe
3 Mediastinum
4 Left Oblique Fissure
Explanation: correct for your numbers in edg
Lungs are the parts of the body where the exchange of the gases are taking place. The exchange of the gases takes place at the alveoli.
What is the cavity in which the lungs are present in ?Lungs are present in the pleural cavity.
Our body is constituting a pair of lungs that is the right lung and the left lung and inside a lung fluid is present which is called as pleural fluid that is present in order to make the structures safe and sound. 1. Left lung 2. Right lung.
3. It is the point at which the bifurcation of the trachea is being done. 4. It is the inferior lobe of the lungs. Basically , the inferior lobes of lungs absorb their lymphatic fluid towards the inferior tracheobronchial nodes . On the other thing, superior tracheobronchial nodes absorb out lymphatic fluid from upper lobes.
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Estimating the weight of a dinosaur using only bones is difficult. Another way is by using scale models. The density of a dinosaur is scaled based on the average density of what living animal
Answers
Given what we know about the methods used by scientists to estimate the weight of a dinosaur, we can confirm that the density of a dinosaur is scaled based on the average density of the common crocodile.
Scaling the density of an extinct animal based solely on bones can be a daunting task. Since the bones themselves do not offer much information on which to base such a calculation, scientists are often forced to rely on other estimations. One such example is the bone scaling method.
This method relies on the genetic relationships shared between the dinosaur and current-day living animals. This offers the ability to compare the dinosaur to the known body mass of a modern-day living animal. The animal most commonly used is the crocodile, however, though this method can provide the scientists with a degree of accuracy, it lacks precision.
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why are antibiotics not effective against viruses?
Answers
Answer:
Viruses are different to bacteria; they have a different structure and a different way of surviving. Viruses don't have cell walls that can be attacked by antibiotics; instead they are surrounded by a protective protein coat. Antibiotics do not work on viruses, such as those that cause colds, flu, bronchitis, or runny noses, even if the mucus is thick, yellow, or green. Antibiotics are only needed for treating certain infections caused by bacteria, but even some bacterial infections get better without antibiotics.
how soon can a blood test detect pregnancy after conception
Answers
Answer:
5 weeks
Explanation:
I think so.
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Because of its ability to decompose into oxygen and water, hydrogen peroxide is very useful against what group of organisms
Answers
Answer:
Hydrogen peroxide works by producing free radicals that damage cellular macromolecules. Hydrogen peroxide has broad-spectrum activity, working against gram-positive and gram-negative bacteria (with slightly greater efficacy against gram-positive bacteria), fungi, viruses, and endospores.
Explanation:
Hope this helps.
Explain how a wholemeal sandwich with tuna and tomatoes will be broken down by the digestive system. Start the process from the mouth and end at the anus.
Answers
Answer:
All of our energy and nutrition come by way of the gastrointestinal (GI) tract. It is an amazing machine well designed for digesting and absorbing nutrients and for shielding the rest of the body from microorganisms, viruses and other foreign matter. The GI tract spans from the mouth to the anus, with each separate organ having a role in digestion, absorption or excretion.Lastly, if you would like to learn more about yourself and how you can best reach your own nutritional and fitness goals, we encourage you to take a look at the following home health testing guides and resources:
Food Sensitivity Testing Guide
DNA Health Testing Guide
Guide to Life Extension Products
Home Health Testing Guide
Everlywell Home Tests Guide
Home Testing for Heavy Metals
Explanation:
(: tsorry hope to help
A major difference between prokaryotic and eukaryotic cells is that
(a) prokaryotic cells have a flagellum.
(b) eukaryotic cells have a nucleus.
(c) prokaryotic cells have cytoplasm.
(d) eukaryotic cells have ribosomes.
Answers
contains stem cells that develop into all cells of the body in a process called hematopoiesis
Answers
Answer:
Bone marrow is soft, spongy tissue at the center of bones, and it plays an essential role in creating RBCs. The marrow produces stem cells, which develop into RBCs, white blood cells, and platelets.
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Explanation:
This is a short question if anyone would be able to help me please i really need the help!!!!
Answers
What is it i hope i can helps you:(