Answer:
Prokaryotic Bacteria
Answer:
Monera is a kingdom in biology that comprises prokaryotes, which are single-celled organism that have no true nucleus.Apr 28, 2017
Explanation:
Kingdom Monera
You have suffered from a lot of diseases that bacteria cause. But, do you think all bacteria are bad? No! The bacteria have a huge kingdom of their own that consists of a number of varieties of them. Each bacteria has a different role to play. They belong to the kingdom Monera. Here, we will know all about the kingdom Monera. We will look at both their characteristics and divisions in greater detail.
Characteristics of Monera
Monera (Monos – single) includes prokaryotes and shows the following characters:
They are typically unicellular organisms (but one group is mycelial). The genetic material in these organisms is the naked circular DNA. A nuclear envelope is absent. Both, ribosomes and simple chromatophores, are the only subcellular organelles in the cytoplasm.
Sap vacuoles do not occur. Instead, gas vacuole may be present.
The predominant mode of nutrition is absorptive but some groups are photosynthetic (holophytic) and chemosynthetic.
The organisms are non-motile or move by the beating of simple flagella or by gliding.
Bacteria Shape
Cocci: They are oval or spherical in shape.
Bacilli: They are rod-shaped. They may or may not have flagella.
Vibrios: These are small and ‘comma or kidney’ like. They have a flagellum at one end and are also motile. Vibrio bacteria has a curve in its cell.
Spirillum: They are spiral or coiled like a corkscrew. The spiral forms are usually rigid and bear two or more flagella at one or both the ends e.g., Spirillum, Spirochaetes etc.
Filament: Just like fungal mycelia, the body of the bacterium is filamentous. The filaments are very minute in size. Examples include Beggiota, Thiothrix etc.
Stalked: The body of bacterium possesses a stalk e.g., Caulobacter.
Budded: The body of the bacterium is swollen at places e.g., Rhodomicrobiu
Structure of Bacteria
Capsule: In a large number of bacteria, a slimy capsule is present outside the cell wall. It is composed of polysaccharides and the nitrogenous substances (amino acids) are also present in addition. This slime layer becomes thick, called, capsule. The bacteria, which form a capsule, are’ called capsulated or virulent bacteria. The capsule ‘is usually found in parasitic forms e.g., Bacillus, anthracite, Diplococcus pneumoniae, Mycobacterium tuberculosis.
Cell wall: All bacterial cells .are covered by a strong, rigid cell wall. Therefore, we classify them under plants. Inner to the capsule, the cell wall is present. It is made up of polysaccharides, proteins and lipids. We also find D-glutamic acid and diaminopimelic acid.
Monera
Plasma membrane: Each bacterial cell has a plasma membrane. It is situated just internal to the cell wall. It is a thin, elastic and also differentially or selectively permeable membrane.
Cytoplasm: The cytoplasm refers to a complex and aqueous fluid or semifluid ground substance (matrix). This material consists of vitamins, salts, enzymes, carbohydrates, soluble proteins, co-enzymes, lipids, mineral and nucleic acids. The organic matter is present in the colloidal state.The cytoplasm is granular due to the presence of a large number of ribosomes.
Nucleoid: It has other common names like genophore, naked nucleus or incipient nucleus. There is nuclear material in these, DNA. It is double helical as well as circular. Some kind of typical protein surrounds it. However, these are not histone proteins.
Plasmids: In addition to the normal DNA chromosomes, many bacteria (e.g., E.coli) have extrachromosomal genetic elements or DNA. These elements are plasmids. They are small circular double-stranded molecules.
Flagella: These are fine, thread-like, protoplasmic appendages. These extend through the cell wall and the slime layer of the flagellated bacterial cells. These help in bacteria to swim about in the liquid medium.
Pili or Fimbriae: Besides flagella, some tiny or small hair-like outgrowths are present on the bacterial cell surface. These are pili. They comprise of pilin protein. They consequently measure about 0.5-2 mm in length and 3-5mm in diameter.
Nutrition in Bacteria
On the basis of mode of nutrition, we can group bacteria into two broad categories. First is autotrophic whereas second is heterotrophic bacteria.
Autotrophic bacteria: These bacteria are able to synthesize their own food from inorganic substances, as green plants do. They derive their carbon from carbon dioxide. The hydrogen needed to reduce carbon to organic form comes from sources such as atmospheric H2, H2S or NH3.
Heterotrophic bacteria: Most of the bacteria cannot synthesize their own organic food. They consequently depend on external organic materials. They require at least one organic compound as a source of carbon for their growth and energy. Such bacteria are heterotrophic bacteria. Heterotrophic bacteria are of three types: Parasites, Saprotrophs and Symbionts.
What are three ways RNA differs from DNA
Answer:
1. DNA is double-stranded, and RNA is single-stranded.
2. DNA stores and transfers genetic information, RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.
3. DNA contains the sugar deoxyribose, RNA contains the sugar Ribose.
Which formula is a hydrocarbon?
O H20
O CaCl2
CH4
CO2
Nach
Answer:
None of tbe option is correct.
Explanation:
Hydrocarbons have genral formula
Cn(H2O)n
n is the number of carbon atoms.
Which would have more humus a desert or a forest
Answer:
a forest
Explanation:
thinks don't really grow in the desert
Which of the following did you include in your
response?
Organs perform specific functions in the body
to keep it alive.
Organelles perform specific functions in cells
to keep them alive.
Answer:
that is chloroplasts found in plant cell and it contains chlorophyll or green pigment
Answer:
Organs perform specific functions in the body to keep it alive.
Explanation:
True or False. Natural disaster disturb most populations within a community and break interactions between organisms
Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, causing the accumulation of toxic substances in the cell and ultimately, cell death. What would be the most likely explanation as to why the lysosomes of someone with this disease are not functioning properly?
A. The enzymes of the lysosome are beginning to break down the DNA of the cell.
B. The enzymes of the lysosome are not breaking down enough toxic material.
C. The enzymes of the lysosome are breaking down too much toxic material.
D. The enzymes of the lysosome are beginning to break down the ribosomes of the cell.
Answer: The enzymes of the lysosome are not breaking down enough toxic material.
Explanation:
Lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
What is the significance of lysosomal storage diseases?Lysosomes are cell organelles that accumulate the cell's toxins or those that enter the cell from the outside (some bacterial particles, for example) and are broken down by the acidic pH of the lysosomes and the enzymes to keep the cell functioning properly. In the case of this disease, it does not work and damages the cell.
Hence, lysosomal storage diseases (LSDs) are a group of rare and inherited genetic disorders in which some part of the lysosome does not function properly, and this is due to the enzymes of the lysosome not breaking down enough toxic material in Option B.
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Which molecule would be the most affected by limited nitrogen?
myofibrillar proteins in muscle
glucose molecules in starch
fat molecules surrounding organs
cellulose molecules in plant cell walls
Myofibrillar proteins in muscle would be the most affected by limited nitrogen.
What are proteins?Proteins are essential biomolecules composed of linear sequences of building blocks called amino acids.
The amino acids are composed of nitrogen (N), carbon (C), hydrogen (H) and oxygen (O), and often also sulfur (S).
Nitrogen is, therefore, a fundamental component of all amino acids, which form proteins such as enzymes, peptide hormones, etc.
In conclusion, myofibrillar proteins in muscle would be the most affected by limited nitrogen.
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In the reaction 6CO2 + 6H 20+C6H 120 6 + 60 2 carbon dioxide is one of the
O products.
enzymes.
elements.
catalysts.
reactants.
How can selective breeding "force" evolution
to occur?
Answer:
Domestication accounts for a significant influence on the evolution of a species. ... Through selective breeding, we may have influenced aid to the survival of a species. Adversely, we may be leading some species to negative results. Indeed, great changes have been implemented because of selective breeding.
Identify the characteristic that allows the cell membrane to regulate which substances enter and exit the cell. nonpolar selectively fluid selectively permeable flexible
Explanation:
The answer is that all cells are "semi-permeable,"
this allows cells to take in only the nutrients needed...
Pleaseee help me out.
The T allele codes for tall stems in pea plants and the t allele codes for short stems. If T is
dominant and t recessive, what percentage of the offspring would you expect to have each
phenotype from a cross of Tt x tt?
a. 75**
tall and 25% short
b. 25% tall and 75% short
C. 50% tall and 50% short
d. 25% tall and 25% short
Answer:
50% tall and 50% short.
Explanation:
T t
t Tt tt
t Tt tt
Why is this important to make new DNA?
Answer: DNA is vital for all living beings – even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death. so it is important
Which event is associated with convergent boundaries?
formation of island chains
creation of mid-ocean ridges
creation of convection currents
formation of rift valleys
Answer:
a
Explanation:
tooook test
The event that is associated with convergent boundaries is ; ( A ) Formation of Island chains
Island chains also known as Archipelago are a group of Islands evenly distributed in lakes, oceans and rivers within a defined area. with the Islands sharing a convergent boundary with each other.
Examples of an Island chain is the Mariana Islands and Japan where the chain of Islands share convergent boundaries.
Hence we can conclude that the event that is associated with convergent boundaries is the formation of Island chains .
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23 POINTS PLS HELP
Use complete sentences to explain how the mass of oxygen is conserved during cellular respiration.
Answer:here you go
Explanation:
2.
Morphology is the study of the.___
A- differences in the biochemistry of organisms
B-geographical distribution of fossils and living organisms
C- differences in the body forms of organisms
D- changes in the gene pools of populations over time
Answer:
c
Explanation:
morphology is the study of living organisms and the relationship between their body structures.
Morphology is the study of the differences in the body forms of organisms.
What is morphology?Morphology is an aspect of biology that deals with the study of organism structures or features or their compositions and how these structures interrelate with each other and the organism for effectiveness.
Therefore, Morphology is the study of the differences in the body forms of organisms.
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1.
Which list below describes the next steps of evaporated water through the water cycle? (3 points)
Condensation, precipitation, runoff, ocean storage
Transpiration, condensation, precipitation, ocean storage
Precipitation, condensation, runoff, groundwater
Evaporation, condensation, precipitation, runoff
2.
What is a possible cost of using nonrenewable energy resources? (3 points)
Greenhouse gases
Less water pollution
Sustainable energy
Costs more money
3.
What is the benefit of recycling plastic and paper products to wildlife? (3 points)
Less expense
Clean fuel
Sustainable energy
Fewer landfills
4.
What is the next phase of the carbon cycle for the carbon source labeled A? (3 points)
Label A shows a collection of coal, oil and gas. Label B shows a collection of trees and vegetation. Label C shows sky and open atmosphere.
Photosynthesis
Ocean storage
Fossil fuel emissions
Transpiration
5.
Where is the last storage location for melted snow? (3 points)
Rivers
Ocean
Streams
Mountains
6.
How can the carbon stored in plants reach the atmosphere? (3 points)
Evaporation
Diffusion
Photosynthesis
Cellular Respiration
7.
Which statement best describes the role of plants in the water and carbon cycles? (3 points)
Plants release oxygen when they decompose take in oxygen for photosynthesis.
Plants take in carbon dioxide during photosynthesis and absorb water through their leaves and roots.
Plants take in oxygen during photosynthesis and absorb carbon dioxide through their leaves and roots.
Plants use oxygen to perform photosynthesis and release carbon dioxide as a by-product.
Answer:
1. d
2. a
3. d
4. probably c
5. b
6. d
7. b
Explanation: Got straight A's in all my biology classes, hope this helps!
Please HURRY!!
Why are bacteria needed in the nitrogen cycle?
A. Other living things cannot use atmospheric nitrogen.
B. Other living things cannot use the nitrogen in plants.
C. Bacteria are the main nitrogen reservoir.
D. Bacteria are the main nitrogen transporters.
The Bacteria needed in the nitrogen cycle Bacteria are the main nitrogen transporters.
What is nitrogen cycle explain?The nitrogen cycle is a repeating cycle of method during which nitrogen carries through both living and non-living things:
The atmosphere, soil, water, flora, fauna and bacteria.
In terms to move via the various parts of the cycle, nitrogen must alter forms.
Thus, option "A" is correct, Bacteria are the main nitrogen transporters.
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where does the independent variable go on a graph
Answer:
SCIENTISTS like to say that the “independent” variable goes on the x-axis (the bottom, horizontal one) and the “dependent” variable goes on the y-axis (the left side, vertical one).
HOPE IT HELPS
PLEASE MARK ME BRAINLIEST : )
Explanation:
What is produced during the photosynthesis process?
A. Chloroplasts
B. Carbon Dioxide
C. Sugar
Answer:
Sugar
Explanation:
Photosynthesis is a process that certain organisms undergo. Plants, algae, and certain bacteria use this process to produce their own food. These organisms are called producers or autotrophs.
The equation for photosynthesis is:
carbon dioxide + water + light energy —-> glucose + oxygen
The plants turn carbon dioxide, water, and light energy from the sun into glucose and oxygen. The glucose, or sugar, becomes the food for the plant. The oxygen is the waste product.
The question asks us what is produced during photosynthesis.
Chloroplasts are not produced, but they are where photosynthesis takes place. Carbon dioxide is not produced, but it is used in the process. The correct answer is sugar. Sugar is produced, and it is the food for the organism.
A Veterinary doctor examined a sick cow. He examined that the cow showed Debilitation and weakness. What would the cow suffer from?
Answer:
Fat Cow Syndrome
Explanation:
SHORT ANSWER:
Explain the function of 2 important cell organelles that play role in protein synthesis
Answer:
Ribosomes and Endoplasmic Reticulum
Ribosomes are the organelles responsible for protein translation and are composed of ribosomal RNA (rRNA) and proteins. ... If the protein in question is a cytoplasmic protein that will not be transported to the cell membrane or secreted, it will be translated on a cytoplasmic ribosome.
hope it helps : D
Explanation:
The nucleus in both plant and animal cells “specializes” the cells so they can do different things- for example, a liver cell or a muscle cell do different things. Thinking about plants or trees, what special functions might different cells in a tree or plant do?
Answer:
od21xef3
Explanation:ewwe
whats is the definition of oxymoran
why plants are growing
Answer:
With the help of warmth, oxygen, and good food from the soil, the seed will open and sprout out. Once the leaves and roots will grow, the plant can go through the process of photosynthesis, the process that plants use to breathe and to make food using sunlight, during photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Explanation:
If you were standing at Earth's geographic North Pole and holding a compass, the magnetic north pole of the compass needle would be pointing _____. A. eastward B. westward C. toward the geographic North Pole D. toward the geographic South Pole
Answer:
C
Explanation:
this is because of the magnetic property of the rocks beneath the north pole , hence the magnetic north will always point towards where the magnetic north of the rocks are
Describe the factors that impact the ability for a skeletal muscle fiber to reach tetany. How do these factors influence the difference in twitch force as the muscle moves from a single twitch to a state of tetanus?
Answer:
Tetanus is a very aggressive disease generated by clostridium tetani, this clostridium, which is a bactera, releases a toxin that generates tetanization of the muscle, where it contracts massively and simultaneously, remaining over time, similar to a contracture and very different from synchronized and sporadic contraction that requires locomotion or other physiological contractions.
The Tetanus toxin acts as a toxin for the muscle cells that make up the skeletal muscle fiber, which unfortunately leads to the progressive death of the patient who suffers from it.
In simple words, tetanus generates muscle spasms that are maintained over time, preventing the function of the organ, that is, of the muscles, immobilizing them and prohibiting them from other movements.
Patients who reach the target are affected by the diaphragm that contributes to respiration, therefore many of the tetanized patients die in a similar way to suffocation due to a constant spasm of the diaphragm.
Explanation:
The bacterium is found in sporulated form on the ground or on oxidized surfaces, that is why it is important to sterilize oxidized elements or to decontaminate them, and to apply the antithetical vaccine, which is what prevents them from suffering from said pathology.
In simple words, the great differences between a physiological contraction of muscle fibers and tetanized contractions is the time in which they occur, since tetanization lasts over time and physiological does not, and the power of contraction in tetanization is greater. , since the toxin of said bacterium potentiates the ionic channels thus generating an increase in the contractile capacity of the muscle fiber compared to the physiological or health situation.
In order for the toxin to have an effect, the bacteria must leave its sporulated state, release the toxin and the wound must be deep enough for the bacteria to enter the bloodstream, after which the toxin enters the myocytes that are muscle fiber cells intensifying muscle spasms by opening calcium channels in a longer period of time, calcium channels are those found in the REL of myocytes, which act as a reserve for this ion, triggering so that the Z lines of the sarcomeros definitively approach spasmodically by shortening the length of the sarcomero.
Rashida doesn’t think that skepticism should play an important role in the scientific process. She says that skepticism interferes with scientific consensus. Which statement best describes Rashida’s conclusion?
It is incorrect because skepticism helps scientists recognize when ideas are not supported by evidence.
It is correct because skepticism prevents the acceptance of creative ideas and new discoveries.
It is correct because skepticism prevents scientists from testing new ideas and communicating with other scientists.
It is incorrect because skepticism leads to the acceptance of new ideas, which can eventually gain scientific consensus.
Answer: b
Explanation: sorry if im wrong
what causes ocean tides to reach higher up on a shore at certain of day than at others?
Answer:
Most tides are semidiurnal, which means they take place twice a day. For example, when an area covered by the ocean faces the moon, the moon's gravitational force on the water causes a high high tide. As the Earth rotates, that area moves away from the moon's influence and the tide ebbs.
Explanation:
Answer:
D. The moons gravity and Earth’s rotation
Explanation:
The compass has advanced dramatically over the years, evolving into a
Global Positioning System (GPS). The GPS is a device that is simple to use
and gives a lot of information on your position.
Which is a positive effect of the technological advance of going from a
compass to a GPS?
O A. The GPS uses less electricity.
B. The GPS gives more accurate information
O C. The GPS is less expensive,
D. The GPS is easier to manufacture,
Answer: B
Explanation:
The GPS gives more accurate information .
What is GPS?The Global Positioning System (GPS) is a U.S.-owned utility that provides users with positioning, navigation, and timing (PNT) services.
What are the 3 types of GPS?Three types of GPS systems are:
Street navigation systemsSports GPS systems Phones with GPSHence, A is correct option
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Can someone please help me, I’ve tried but I can’t figure it out
Answer: 25 percent
Explanation:
