Iron is a component of hemoglobin, which enables it to absorb oxygen from the air we breathe and transport it throughout the body.
What is Hemoglobin?The iron-containing oxygen-transporting metalloprotein known as hemoglobin, often known by the abbreviations Hb or Hgb, is found in the red blood cells of almost all vertebrates as well as some invertebrate organs. The oxygen from the respiratory organs is transported to the rest of the body by hemoglobin in the blood.
The normal ranges for haemoglobin are different for males and females, and they also vary depending on the ethnicity of the population. Additionally, age is a factor, particularly for women.
When you have anemia, your body doesn't produce enough healthy red blood cells to supply your tissues with enough oxygen. Anemia, commonly known as low hemoglobin, can make you feel exhausted and frail.
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What are some examples of evidence that suggest that some continents were once joined and have since separated?
Cell membranes are made up of a bilayer of phospholipids that are very selective about what substances can pass through.The table below shows the different types of molecules that can enter a cell. It compares the concentration on the outside to the inside of the cell, its relative size, and whether it is polar, nonpolar, or an ion. Determine how each molecule can pass into the cell. Is it by passive transport, active transport, or endocytosis? (3 points)
Answer:
Answer: Oxygen = passive Carbon Dioxide = passive Fructose = Endosytosis glutamine = Active Sodium ion = Active Potassium ion = Active Protein molecule = Passive or Endocytosis
Explanation:
js trynna get points lol
The molecules can pass into the cell by passive transport, active transport, or endocytosis.
Molecule | Concentration Outside | Concentration Inside | Size | Polarity | Transport | Mechanism
Glucose High Low Small Polar Diffusion
Oxygen High Low Small Nonpolar Diffusion
Sodium High Low Small Ion Active transport
Chloride Low High Small Ion Active transport
Amino acids Low High Medium Polar Carrier-mediated transport
Large protein Low High Large Polar Endocytosis
Glucose and oxygen can pass into the cell by diffusion. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Glucose and oxygen are both small molecules, and they are both polar. This means that they can dissolve in the phospholipid bilayer of the cell membrane.
Sodium and chloride can pass into the cell by active transport. Active transport is the movement of molecules from an area of low concentration to an area of high concentration. Sodium and chloride are both ions, which means that they are charged particles. This means that they cannot dissolve in the phospholipid bilayer of the cell membrane. Instead, they need to be transported across the membrane by special proteins called ion pumps.
Amino acids can pass into the cell by carrier-mediated transport. Carrier-mediated transport is a type of passive transport that uses carrier proteins to transport molecules across the cell membrane. Amino acids are polar molecules, but they are larger than glucose and oxygen. This means that they cannot simply diffuse across the cell membrane. Instead, they need to be transported across the membrane by carrier proteins.
Large protein can pass into the cell by endocytosis. Endocytosis is a process by which the cell engulfs large molecules or particles. The cell membrane forms a pocket around the molecule or particle, and then the pocket pinches off to form an endocytic vesicle. The endocytic vesicle then fuses with a lysosome, where the molecule or particle is broken down.
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Which of the following would be best evidence that the climate and geogly of an area have changed over time
Answer:
Sea shell fossils are found in a mountain-top cave in New Hampshire.
Explanation:
an organism or cell having two sets of chromosomes or twice the haploid number
Answer:
Diploid
Explanation:
Sexually reproducing organisms are diploid (having two sets of chromosomes, one from each parent). In humans, only their egg and sperm cells are haploid.
How do I describe chloroplast
Answer:
a plastid that contains chlorophyll and in which photosynthesis takes place.
or
a type of plastid that is involved in the synthesis and storage of foodstuffs
Explanation:
hope this helps :)
Answer:
Chloroplasts are/have
- Oval shaped
- filled with chlorophyll
- have a 2 membrane structure
Chloroplasts are special and unique structures found in plant cells that are king when it comes to turning sunlight into energy for the plant to use. (this process is called chlorophyl)
Hope this helped!
Geologists determine the
geological history of an area by
examining rock layers in geologic
columns. The diagram shows
three geologic columns from the
same region that have not been
overturned.
A.
Place an arrow at each rock
layer boundary to represent a
missing layer of rock in each
of the three columns.
Next part in pic
The sample columns have two missing layers as follows:
Column 1: Layers 3 and 8 are missing. Column 2: Layers 1 and 7 are missing. Column 3: Layers 1 and 5 are missing. What is geology?Geology is a term to refer to the specialized science that focuses on the study of the composition and internal and external structure of the surface of the planet Earth, and the processes by which it has evolved throughout geological time.
In the image 3 columns are shown showing various layers of the Earth, however, each of it has 2 missing layers. To know which layers were missing from each one, we must analyze them to establish what a column with complete layers would look like and then compare the 3 samples with the model to know which layers are missing.
According to the previous process, it can be inferred that the missing layers in each column are:
Column 1: Layers 3 and 8 are missing. Column 2: Layers 1 and 7 are missing. Column 3: Layers 1 and 5 are missing.Note: This question is incomplete because the graph is missing. Here is the graph.
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Which regions have been most affected by rising temperatures?
Answer:
Japan
The Philippines
Germany
Madagascar
India
Sri Lanka
Kenya
Rwanda
Explanation:
Which job description refers to the work of the mitochondrion?
Mitochondria is called as the “powerhouses of the cell,” which produce the energy necessary for the cell's survival and functioning.
What is Mitochondria?A mitochondrion is defined as an organelle found in the cells of most eukaryotes such as animals, plants and fungi which has a double membrane structure and uses aerobic respiration to generate adenosine triphosphate, which is used throughout used as a source of chemical energy in the cell.
It is known as the "powerhouse of the cell", generating the energy needed for the survival and functioning of the cell.
Through a series of chemical reactions break down glucose into an energy molecule known as adenosine triphosphate (ATP), which is used to fuel various other cellular processes.
Thus, mitochondria is called as the “powerhouses of the cell,” which produce the energy necessary for the cell's survival and functioning.
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which part of the dna nucleotide determines genetic characteristics?
which layer of soil is closest to the surface
The Top soil is closest to the surface
The top most layer of the soil which contains humus and microorganisms in addition to soil particles is called top soil.
The quality of top soil determines the diversity of life in the region.It is the most fertile layer of soil in which the plants are able to grow.Cheers!!
If the economy is too big, does it have a negative or positve effect on the environment?
Economic growth means an increase in real output (real GDP). ... The environmental impact of economic growth includes the increased consumption of non-renewable resources, higher levels of pollution, global warming and the potential loss of environmental habitats.
Which of the following correctly indicates the order in which mitosis occurs?
A, B, C, D
B, A, C, D
C, B, A, D
A, C, B, D
Other:______________________________
Based on my knowledge I would say C, B, A, D
the chromosomes replicate themselves, then they line up at the metaphase plate, then they begin to pull apart to form daughter cells
Mrs. Franklin's science class is conducting an experiment with corn plants. The students planted 100 corn kernels. Green plants sprouted from 78 of the kernels. The other 22 kernels grew into white plants, which contained no chlorophyll. What inference can be made about the genotype of the corn? A White color is dominant over green. B Green color and white color are equally recessive. C White color and green color are equally dominant. D Green color is dominant over white.
Answer:
D- Green color is dominant over white
Explanation:
For a heterozygous cross, the dominant one will show around 75% of the time where the recessive will show around 25% and 78 and 22 and very close to those numbers!
Hope this helps!
what are the functions of the cells in the chloroplast
Answer:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth. ... Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
Explanation:
Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process. By doing so, they sustain life on Earth. ... Chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
which term describes the site of a muscle attaching to the bone that moves the most?
Answer:
Insertion
Explanation:
In Philip’s French class, the students are learning how to pronounce closed vowels and open vowels. The students are most likely studying French __________. A. Syntax B. Phonemes C. Semantics D. Morphemes Please select the best answer from the choices provided A B C D.
The students are most likely studying French phonemes. A phoneme is a distinguishable sound.
A phoneme can be defined as is a distinguishable sound from another in a given language (in this case, French) or dialect.
This sound (phoneme) exhibits the same function by all the speakers of the particular language and/or dialect.
These sounds (phonemes) form a group of similar speech sounds that can be distinguished in the language in question.
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A constant rate of increase for a population produces a growth graph that is J shaped rather than a straight line. Why?
What is the main difference between migration, immigration, and emigration?
Answer Migration, in turn, covers both immigration and emigration. Another key difference is, immigration is permanent while migration doesn’t have to be. People who travel and stay in a country for a few months — for instance, because of a seasonal job they have — are also called migrants.
Explanation:
which of the following hormones produced in the anterior pituitary stimulates the production of progesterone and estrogen by ovaries and is needed for ovulation?
Luteinizing hormone stimulates the corpus luteum to produce progesterone, which is required to support the early stages of pregnancy, if fertilization occurs.
what are the role of Luteinizing hormone ?These hormone are released from ductless Endocrine cells which release their secretion i.e., hormones directly into blood.
The FSH (follicle stimulating hormone) is secreted by pituitary gland which helps in controlling menstrual cycle and stimulation of ovaries for egg production.
The hormone LH (Luteinizing hormone) is secreted from pituitary gland, helps in physical development and maintaining pregnancy.
Thus, both FSH and LH are produces by pituitary gland and their functions are to control menstrual cycle and maintaining pregnancy respectively.
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Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.
Answer:
no it is not possible
Explanation:
bc when you do a punnett square brown hair is dominant so there is not a possible way for their child to have blonde.
which substance from the light-dependent reactions of photosynthesis
Answer:
The ATP and NADPH which are produced in the light-dependent reactions are utilised as the source of energy in the Calvin Cycle.
Which best describes stellar equilibrium?
Help please and are the ones that already answered to are correct ?
Yes, all of your answers are correct except for number 12. Instead I would say a food chain outlines who eats whom but a food web is all of the food chains in an ecosystem.
Primary consumers are basically herbivores, such as squirrels, rabbits, crickets, etc.
Secondary consumers are carnivores/omnivores, animals that eat other animals such as foxes, snakes, and owls.
Higher order consumers are animals that can eat more things, like humans for example, because we eat animals that are bigger than us like cows but we also eat plants.
Omnivores are animals that eat meat and plants, such as humans and mice because according to your food web, mice also eat meat.
I can’t see the picture very well because it’s blurry, but i think the owl eats some kind of animal that looks like a frog and snakes, so if the owl is removed the frog animal thing and snakes would increase.
for the last question, i would say
What type of weather is associated with High Pressure systems?
Question 4 options:
it is always different
snowy weather
clear sunny skies
cloudy stormy weather
Answer:
it's option C) clear sunny skies.
The type of weather associated with High pressure systems is : ( C ) clear sunny skies
High pressure systems have a greater amount of air pressure within their systems, when compared to its surroundings. Due to the presence of high air pressure within the system the air in the system is pushed into the surroundings.
Types of pressure systemsThere are two types of pressures systems and they are
High pressure system ; Possess more air pressure within the system Low pressure system ; Possess less air pressure within the systemAs the air leaves the high pressure system into the surroundings the system becomes clearer ( i.e clear sunny skies is evident in a high pressure system).
Hence we can conclude that the type of weather associated with high pressure systems is clear sunny skies
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which part of the plant cell absorbs sunlight a. cell membrane b. glucose c. pigments d. mitochondria
Answer:
c. pigment
Explanation:
a. cell membrane --> Controls the movement of substances into and out of the cell
b. glucose --> the form of carbohydrate
c. pigment --> chlorophylls, anthocyanins, carotenoids, and betalains
(chlorophyll is used to absorb light energy from the sun)
d. mitochondria --> Where respiration reactions happen
Climate change caused by natural disasters cannot have a negative impact on ecosystems. Please select the best answer from the choices provided T F
Answer:
FFFFFFFFFFFFFFFFF
Explanation:
trust i got it right on the test have a wonderful day :)))
A cross between a red cow and a white bull produces an offspring with a roan color (a spotted red-and-white color). This exhibits what type of genetic inheritance?
Answer:
co-dominance
Explanation:
in co-dominance both parents are dominant
Question why won't answers open up where is the log in page
Answer:
Hmm I'm not sure I joined only a few days ago.
Explanation:
How do you think astronomers group planets?
Answer:
They group them biased off of similar traits and there orbital paths.
Explanation:
I hope this helped ^ ^
What do protists and animal cells have in common?