Answer:
a
Explanation:
● History of Ribosomes./ pls describe and write so facts
Answer:
Ribosomes are small dense and granular ribonucleoprotein (i.e., RNA and protein) particles found attached on the outer surfaces of endoplasmic reticulum and nucleus as well as freely scattered in cytoplasm, mitochondrial matrix and chloroplast.
Explanation:
History of Ribosomes:
Ribosomes were first isolated from E. coli by Tissieres and J. D. Watson (1958), who found that ribosomal RNA alone accounts for 22% of the total weight in rapidly growing cells (90% of total RNA). Palade (1953) was the first to observe the ribosomes as dense particles or granules in electron microscope. Upon isolation they were shown to contain approximately equal amounts of RNA and protein.
Size of Ribosomes:
There are mainly two sizes of ribosomes — (i) One is smaller prokaryotic found in bacteria and blue—green algae, having a sedimentation coefficient 70S equivalent to a molecular weight of 2.7 × 106 daltons. (Dalton is the unit of molecular weight. One Dalton is equal to the weight of one hydrogen atom), (ii) Other is of eukaryotic cells of plants and animals of 80S coefficient with a molecular weight of about 4 × 106 daltons.
what describes a carrier protein in cell surface membrane?
Explanation:
Carrier proteins are proteins that carry substances from one side of a biological membrane to the other.
What can you infer about the pH of a stomach and an intestine based on the above enzymes? Justify your answer.
Answer:
Well I cannot see the enzymes that are ''above'', but typically the pH of stomach is more acidic as the enzymes found in the stomach work best in acidic environments while enzymes in the intestines work better at more neutral pH's like 6-7 depending what intensine ur talking about.
Explanation:
what is an example of gravitational potential energy
Answer:
2y r
Explanation:
sir for k the hook any study buy
The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.
The phospholipid by layer is What
Phospholipids are made up of two layers, the outer and inner layers. The inside layer is made of hydrophobic fatty acid tails, while the outer layer is made up of hydrophilic polar heads that are pointed toward the water.
bonjour , c'est a rendre pour demain , pourriez vous m'aider ?
Answer:
It's way too easy to be on here
Explanation:
in what cell organelle is the green pigment, chlorophyll found?
Answer:
Chloroplasts
Explanation:
I hope this helps.
Which level of organization is shown in the diagrarn?
organ
0 tissue
organ system
O cell
Answer:
A. organ
Explanation: that is a kidney which is a organ, composed of cells making a tissue. It can't be tissue or cell then, and organ systems are multiple organs working together. so it's organ
Which of the following biological molecules
are composed of the elements C, H, O, N and
S?
carbohydrates
nucleic acids
proteins
lipids
Answer:
protein
Explanation:
because carbohydrate ..nucleic acids protein
Biological molecules are large molecules made of various elements and compounds linked together. Proteins are composed of C, H, O, N, and S. Thus, option C is correct.
What are proteins?Proteins are considered macromolecules that are large in size and are polymers composed of various units of amino acids linked together by peptide bonds. They are involved in various activities and structural functions in the body.
The chains of various amino acids linked together make the protein molecule. The amino acids involved in the structure are composed of various elements that include, hydrogen, carbon, oxygen, nitrogen, and sulfur in various combinations. The amino acids contain amine, carboxylic acid, and other variable groups.
Therefore, option C. proteins are made of monomers of amino acids.
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WHAT ARE THE IMPORTANCE OF TRANSPORT MECHANISMS IN CELLULAR PROCESSES?
#5 and 6 pleasee I will give you 100 points
6)it is bigger then we ever thought and that we wont beable to explore it all..
CORRECT ME IF I AM WRONG
6) it is bigger then we ever thought and that we wont beable to explore it all
sorry if this didnt help
NO G00GLE PLEASE <3
Define cell
Answer:
cell is a unit that can live on its own and makes up all living organism and the tissue of the body
Explanation:
hope that helps thanks!
what is the primary function of cellular respiration?
Answer:
Cellular respiration releases stored energy in glucose molecules and converts it into a form of energy that can be used by cells. Hope i helped
which compound has the highest free energy and produces the most atp per molecule when oxidized?
Answer:
glucose
Explanation:
Oxyhemoglobin is which color?
and *deoxyhemoglobin appears deep purple or blue
Answer:
red
Explanation:
Answer:
Oxyhemoglobin is which color?
➜Red
Deoxyhemoglobin appears deep purple or blue?
➜Blue
the external energy source for producers is ________ and the final energy-rich product produced in the mitochondria of consumers is ________.
Answer: the external energy source for producers is The sun and the final energy-rich product produced in the mitochondria of consumers is adenosine triphosphate (ATP).
The first one is: The sun
The second one is: adenosine triphosphate (ATP).
Explanation: I hope that's what you're looking for. Have a nice day studying.
GUYS PLEASE HELP I HAVE SCHOOL TOMORROW AND THIS IS THE LAST QUESTION BEFORE I GET TO GO TO A HAUNTED HOUSE XD.
When a cell uses a ____ channel to get large molecules across the cell membrane this is known as ___ diffusion.
That's all it gives me two answers please. *PLEASE HELP*
Answer:
I'm pretty sure the bottom one is faciliated diffusion. Try searching up your answer so sorry I couldn't help more, but I hope that does help you out a bit:)
1. When “cleaning” a cadaver, what is removed to better see defined muscles?
When cleaning a cadaver, a professional will remove the fascia in order to better see defined muscles.
The fascia is a thin layer of connective tissue that wraps muscles. It is membraneous and extends throughout the entire body. Among the many functions of the fascia are:
Protectionisolation CompartmentalizationOf its functions, the last it's perhaps the most relevant to this question. It divided the muscles into groups. This is one of the main reasons that in order to see and properly study the muscles of a cadaver, the professional must remove the fascia.
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Answer:
deep fascia
Explanation:
where is most of the energy stored within an atp molecule?
Answer:
Adenosine Triphosphate
Explanation:
Two things acting upon each other
Answer:
The meaning of force? or gravity pulling the object towards the Earth.
Somebody help me please
Answer:
a
Explanation:
is algae is saprophytic plant
yes
no
Why are there so many earthquakes in califonia?
Answer:
The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. Over time, these faults produce about half of the significant earthquakes of our region, as well as many minor earthquakes.
Answer:
The level of seismic activity is due to North Carolina's present upon a passive not active continental margin unlike West Coast regions which experiment frequent earthquakes along known and active Falls owns all of the known facts Exposed on the surface North Carolina are ancient and Interactive.
colorless, odorless, tasteless, and transparent
All of these are what kind of properties of water?
Chemical or physical?
Answer:
Physical!
Explanation:
Theres your answer, Physical
Answer:
I believe these are the physical properties of water
Explanation:
if you were a monkey what would you do?
If i was a Monkey i would relax
and do monky things
Monkeys better than humans
What happens to air as it is moved into the body?
*it's D
Answer:
all of the above
Explanation:
Answer:When you inhale (breathe in), air enters your lungs and oxygen from the air moves from your lungs to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathe out). This process is called gas exchange and is essential to life.
Explanation:
brainliest pls
NO G00GLE PLEASE <3
How can you explain the relationship of the following components within the cell: nucleus DNA, chromosomes, and genes?
Answer: DNA is found in every cell of our body– except red blood cells (no nucleus). Genes are a segment of DNA. Our genes are the blueprint for our biology.
Explanation:
HELP PLEASE !!
Which of the following correctly describes the synthesis of proteins?
Question 6 options:
DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.
DNA is translated to tRNA, whihc then attaches to a ribosome where it is transcribed into a protein.
DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein.
DNA is transcribed to tRNA, which then attaches to a ribosome where it is translated into a protein.
Answer:
DNA is transmitted to mRNA, which then attaches to a ribosome where it is translated into a protein.
I looked up the definition of transmitted and it fits better
DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The correct answer is option C.
What is the role of mRNA ?mRNA is the code of DNA that carries the information of coding proteins from the nucleus to the cytoplasm.
DNA is transcribed into mRNA where it is transcribed intro message to which kind of protein is about to be formed. A triplet forms one amino acid and this process is taking place in the ribosome.
The chain of amino acids forming a protein is released in the cytoplasm and the proteins is then assigned a particular position where so ever is them needed mostly in the cytoplasm.
Therefore, DNA is transcribed to mRNA, which then attaches to a ribosome where it is translated into a protein. The activity takes place in the ribosome.
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where are the motor proteins that move chromosomes toward the poles of the mitotic spindle located?
Answer:
They are at or near the ends of the microtubules. I hope this helps you! :D
Microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.
What are motor protein?Motor protein are defined as a group of molecules with the ability to travel across the cytoplasm of animal cells. Molecular motors called motor proteins move along the cytoskeletal filaments of the cell by hydrolyzing ATP. They provide a variety of tasks for biological systems, such as facilitating intracellular trafficking along biopolymer filament tracks and regulating filament sliding during muscle contraction.
Microtubules are defined as the cytoskeleton is made up of tubular-structured polymers, which are present throughout the cytoplasm. Microtubules play a variety of roles in dividing cells, including the construction of the mitotic spindle and axon extension in neurons.
Thus, microtubules near the cell plate are the motor proteins that move chromosomes toward the poles of the mitotic spindle located.
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