Answer:
C. Cell wall
Explanation:
The cell wall gives the cell its structure and protection. It also provides support to the cell by making sure nothing happens to it, and it is considered the outer layer of the cell and the layer is very thick and rigid.
What biomolecule is a cell with a lot of ribosomes attached to its rough endoplasmic reticulum probably specialized to manufacture?
Answer:Ribosomes are the cellular structures responsible for protein synthesis. When viewed through an electron microscope, ribosomes appear either as clusters (polyribosomes) or single, tiny dots that float freely in the cytoplasm. They may be attached to the cytoplasmic side of the plasma membrane or the cytoplasmic side of the endoplasmic reticulum and the outer membrane of the nuclear envelope. Electron microscopy has shown us that ribosomes, which are large complexes of protein and RNA, consist of two subunits, aptly called large and small (Figure 1). Ribosomes receive their “orders” for protein synthesis from the nucleus where the DNA is transcribed into messenger RNA (mRNA). The mRNA travels to the ribosomes, which translate the code provided by the sequence of the nitrogenous bases in the mRNA into a specific order of amino acids in a protein. Amino acids are the building blocks of proteins.
Because proteins synthesis is an essential function of all cells, ribosomes are found in practically every cell. Ribosomes are particularly abundant in cells that synthesize large amounts of protein. For example, the pancreas is responsible for creating several digestive enzymes and the cells that produce these enzymes contain many ribosomes. Thus, we see another example of form following function.
Mitochondria
Mitochondria (singular = mitochondrion) are often called the “powerhouses” or “energy factories” of a cell because they are responsible for making adenosine triphosphate (ATP), the cell’s main energy-carrying molecule. ATP represents the short-term stored energy of the cell. Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product. In fact, the carbon dioxide that you exhale with every breath comes from the cellular reactions that produce carbon dioxide as a byproduct.
In keeping with our theme of form following function, it is important to point out that muscle cells have a very high concentration of mitochondria that produce ATP. Your muscle cells need a lot of energy to keep your body moving. When your cells don’t get enough oxygen, they do not make a lot of ATP. Instead, the small amount of ATP they make in the absence of oxygen is accompanied by the production of lactic acid.
This transmission electron micrograph of a mitochondrion shows an oval outer membrane and an inner membrane with many folds called cristae. Inside the inner membrane is a space called the mitochondrial matrix.
Figure 2. This electron micrograph shows a mitochondrion as viewed with a transmission electron microscope. This organelle has an outer membrane and an inner membrane. The inner membrane contains folds, called cristae, which increase its surface area. The space between the two membranes is called the intermembrane space, and the space inside the inner membrane is called the mitochondrial matrix. ATP synthesis takes place on the inner membrane. (credit: modification of work by Matthew Britton; scale-bar data from Matt Russell)
Mitochondria are oval-shaped, double membrane organelles (Figure 2) that have their own DNA and ribosomes (we’ll talk about these later!). Each membrane is a phospholipid bilayer embedded with proteins. The inner layer has folds called cristae. The area surrounded by the folds is called the mitochondrial matrix. The cristae and the matrix have different roles in cellular respiration.
Peroxisomes
Peroxisomes are small, round organelles enclosed by single membranes. They carry out oxidation reactions that break down fatty acids and amino acids. They also detoxify many poisons that may enter the body. Many of these oxidation reactions release hydrogen peroxide, H2O2, which would be damaging to cells; however, when these reactions are confined to peroxisomes, enzymes safely break down the H2O2 into oxygen and water. For example, alcohol is detoxified by peroxisomes in liver cells. Glyoxysomes, which are specialized peroxisomes in plants, are responsible for converting stored fats into sugars.
Explanation:
Marco has experienced extreme fatigue (tiredness) lately. He eats three balanced meals each day and exercises 2-3 times per week on his Peloton bike. He gets 7-8 hours of sleep each night, but just can’t seem to stay awake during the day. Which organelle is most likely causing Marco’s problems?
Given the symptoms shown by Marcos, we can infer that the organelle that may be causing his problems is the mitochondria.
The mitochondria are one of the most famous and important organelle within a cell. Found in most eukaryotic cells, they are the organelle responsible for most of the energy production of a cell, and throughout the cells of the body, they become responsible for the energy production of the organism. This is the origin of its famous "Powerhouse of the cell" title. Mitochondria produce energy in the form of ATP.
ATP is a molecular compound necessary for most of the reactions that take place in a cell. It is so common as a requirement for any cellular activity that ATP is known as the "molecular currency". Marcos is said to be experiencing chronic fatigue, which is a symptom of mitochondrial disease. When the mitochondria of an organism's cells are not functioning as they should be, the cells do not have the energy needed to perform basic functions.
In reaction to this, the body sends signals to the brain to go to sleep, which minimizes energy consumption by slowing down the metabolic processes which require ATP and thus gives the body time to produce more energy. For these reasons, we can conclude that the fatigue and problems Marcos is experiencing are due to mitochondrial disease.
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About_____________ percent of the solar energy reaching the outer atmosphere is reflected or scattered back into space.
ANSWER ASAP
a.10
b.30
c.50
d.90
Answer:
What is b.30
Explanation:
About 29 percent of the solar energy that arrives at the top of the atmosphere is reflected back to space by clouds, atmospheric particles, or bright ground surfaces like sea ice and snow. This energy plays no role in Earth's climate system.
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plants use the ____________ to make organic molecules.
which phyla do crinoids and sea cucumbers belong to?
Q.1. Which of the following statements is false?
a) The particles in a solid are packed tightly together and can only vibrate in place.
b) Liquid particles are moving more slowly than gas particles.
c) Particles in the gas are much farther apart than particles in liquid or solid.
d) The particles in a solid have more energy than the particles in a liquid.
the nurse is assessing a patient who is diagnosed with respiratory acidosis. which cardiovascular finding does the nurse anticipate when assessing the cardiovascular system?
If the nurse is assessing a patient who is diagnosed with respiratory acidosis. the cardiovascular finding that the nurse should anticipate when assessing the cardiovascular system are:
TachycardiaDysrhythmiaRespiratory acidosis is a condition where a person body cannot exhale the carbon dioxide or C02 inhale resulting in the accumulation or build up of carbon dioxide in their body.
When the nurse is carrying out assessment on the patient cardiovascular system the nurse should check out for Tachycardia and Dysrhythmia so as to detect any form of abnormalities.
Tachycardia occur when the heart beat too fast than normal and Dysrhythmia as well occur when the heart beat is irregular.
Inconclusion if the nurse is assessing a patient who is diagnosed with respiratory acidosis. the cardiovascular finding that the nurse should anticipate when assessing the cardiovascular system are:
TachycardiaDysrhythmiaLearn more here:
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if rRNA is produced in nucleolus then how it performs and give protein as a rhibosome??
Nucleolus is site for production of ribosomal RNA not ribosomes. While ribosomes constitute both rRNA and protein they are assembled after transcription. rRNAs associate with the ribosomal proteins, forming the two types of ribosomal subunits (large and small). These will later assemble in the cytosol to make a functioning ribosome. In prokaryotes ribosomal RNAs are coded in operon systems (nearly 20) and absence of a nucleolus in way hampers their production.
when inactive, the alpha subunit of the g-protein is bound to:
Answer:
the beta-gamma subunit to form an inactive trimeric protein.
Explanation:
When inactive, the alpha subunit of the G-protein is bound to a GDP molecule.
The guanine nucleotide-binding proteins (commonly called G proteins or GTPases) represent an evolutionarily conserved protein family that serves to switch on/off different signaling pathways within the cell.G-proteins are composed of three different subunits: Gα, Gβ, and Gγ subunits.When GDP is bound to Gα, this subunit remains bound to the Gβ subunit in order to form an inactive heterotrimeric protein.When GTP is bound to the G-protein, then Gα dissociates from the other subunits and triggers the activation of the G-protein.In conclusion, when inactive, the alpha subunit of the G-protein is bound to a GDP molecule.
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which type of fossils are used to identify specific time periods?
Answer:
Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly. Index fossils help to identify specific time periods. They are made from organisms that were distinctive, widespread, and lived briefly.
Explanation: hope this helps :)
Answer:
index file
hope this helps
:)
Explanation:
4. True or false; the tibialis longus and brevis muscles are found on the
lateral side of the leg.
Answer:
True I think
Explanation:
Pls correct me if I am wrong.
POSSIBLE POINTS: 3
are made from smaller building blocks known as nucleotides. Their main function is
Two examples include
Answer:
Proteins are composed of amino Acids
Answer:
Nucleic acids are made from smaller building blocks known as nucleotides.
The main function of nucleotides: is to form polynucleotides, which are strands of genetic information that can wrap around each other to form a DNA double helix.
Explanation:
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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How do cells make energy?
Through photosynthesis.
Through the breakdown of macromolecules.
Through exercise.
Through the production of methane.
Answer:
through the break down of macromolecules
The name of the bird that kills snake
Answer:
secretary bird
Explanation:
BRAINLEST FOR EVER ANSWERS FIRST IN CORRECT
the center of a cinder cone/composite volcano will have a _____?
calderas
fumarole
conduits
crater
Answer:
Answer is the 2nd one
Explanation:
Not only 2nd th 3rd cause the fourth one and the first one is not quite right.
Paired funnel shaped organs used for excretion in annelids
Answer:
Nephrdia(metanephridium)
The table below shows some of the ingredients in the four different drinks. Which of these drinks would give an athlete the most energy we litre
Answer: 2
Explanation: the numbers add up to make the highest number
the connective tissue covering around a fascicle is the
Answer:
a layer of connective tissue called the perimysium.
Explanation:
why is the study of coral reefs in Palau is important for other coral ecosystem
Answer:
The study of coral reefs is important for providing a clear, scientifically testable record of climatic events over the past million years or so. This includes records of recent major storms and human impacts that are recorded by the changes in coral growth patterns. The Nature Conservancy and the Palau Government have joined forces to design and implement a protected areas network for Palau’s coral reef ecosystem. They recognized bleaching as being potentially one of the
Explanation:
Joe, age 14, recently fractured his forearm midway between his wrist & elbow. Should his physician be concerned about his epiphyseal plate being affected and causing bone growth to stop?
Joe's doctor must be concerned that his bone growth will be hampered by damage to the epiphyseal plate.
We can arrive at this answer because:
The epiphyseal plate is a set of cartilage present at the end of long bones, such as the bones present in the forearm.The epiphyseal plate is responsible for the longitudinal and lateral growth of the bone.This growth occurs during childhood and adolescence, for this reason, it is essential to maintain the good integrity of this plaque during this time of life.In the case of Joa, who is still a teenager, a fractured forearm can damage his epiphyseal plate and affect his body's bone growth, so his doctor should be concerned about this.
It is important to note that during adult life, the epiphyseal plate is replaced by an epiphyseal line.
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Why are bacteria called the borderline between plants and animals
Answer:
it's because they have the both characteristics of plants and animals
example:-
bacteria have cell wall that is a characteristic of the plants.but at the same case they also produce some nucleic acids that are only found in animals.so, they are the borderline between plants and animals.
Explanation:
brainliest plz
can someone please draw a flow chart of the Big Bang theory (not show) the scientific one (:
Answer:
Ur welcome ;) (Even tho I uploaded it from the web lol)
Explanation:
Which is more important and why? Brain of spinal cord
The movement of water across a membrane moving with the concentration gradient is called
A. facilitated diffusion
B. osmosis
C. active transport
D. None of the above
Answer: B
Explanation: Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.
4. What muscle joins with the short head of the biceps brachi?
Answer:
attaches to the coracoid process of the scapula
there are 22 grams of media per 1000 mL of liquid, how many grams of media would it take to make only 100 mL of liquid?
Answer:
1ml
Explanation:
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help.................................
Answer:
your awnser is C
Explanation:
Hope that helps :)
Answer:
help... i need somebody.. help.... not just anybody
Explanation:
help
describe a mature community. how does a mature community develop?
DUE IN 30 MINUTES HELP
Answer: simply has organisms*living things) that are well adapted to live together in the same area over time.
A comparative line graph has only one line.
A. True
or
B. False
Answer:
you refer to attached please mark me brainlist iam change my country iam coming from India
