Answer:
They are the preferred energy source of cells.
Polysaccharides are long chains of glucose molecules.
They are hydrophilic.
They contain energy in carbon–carbon bonds.
Explanation:
Carbohydrates are one of the four biomolecules found in living systems. They are molecules made up of carbon, hydrogen and oxygen in their structures. A monosaccharide is the simplest unit of a carbohydrate. Carbohydrates are energy sources since they store energy in their chemical bonds i.e. carbon-carbon bonds.
They are preferred as energy sources by cells due to the fact that their stored energy can be released quickly for use by cells i.e. easily broken down compared to lipids.
Polysaccharides (large chains of carbohydrate) such as starch etc. are composed of long chains of monosaccharide units such as glucose. Due to the hyroxyll group in the structure of carbohydrates, they are considered water-loving or hydrophilic.
Area under velocity-time graph gives:
Answer:
The area under a speed-time graph represents the distance travelled.
carbon, nitrogen and phosphorus are examples of (compounds/nutrients/reservoirs/sediments).
Answer:
nutrients
Explanation:
A natural process in which elements are continuously cycled in various forms between different compartments of the environment (e.g., air, water, soil, organisms).
Carbon, Nitrogen, and Phosphorus are examples of nutrients. Thus, the correct option for this question is B.
What is the importance of nutrients?Nutrients are important for organisms in order to furnish the source of energy that is ultimately required by the animals for the accomplishment of metabolic functions like tissue repair, building, and growth of cells, reproduction, etc.
These nutrients form complex compounds like carbohydrates, fats, vitamins, minerals, proteins, etc. The function of each complex compound is very specific. For example, carbohydrate is known as energy-deriving molecules which deliver immediate energy to the cells of living organisms, proteins are required for cell and tissue repairment, etc.
Therefore, carbon, Nitrogen, and Phosphorus are examples of nutrients. Thus, the correct option for this question is B.
To learn more about Nutrients, refer to the link:
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Which type of cells has a chloroplast?
Answer:
plant cell
Explanation:
Animal cells do not photosynthesize (with the exception of one animal but biology is INCREDIBLY diverse and creative.)
Processing organic material into fuel is called?
how will ATP synthesis from glucose metabolism change in muscle cells deficient in triose phosphate isomerase
Which of the following answers relates to a quick energy source and lactose?
A. Carbohydrate
B. Lipid
C. Protein
D. Nucleic Acid
Answer:
A. Carbohydrate
Explanation:
What biological macromolecule is made up of monomers like the one shown below?
A molecule with an amino group, carboxylic acid, hydrogen atom, and R group bonded to a central carbon atom.
Lipid
Nucleic acid
Protein
Carbohydrate
Answer:
Protein.
Explanation:
Proteins consist of an R group/carboxylic acid unlike any of these. Look at this image- hope it helps
Answer:
protein
Explanation:
In addition to the repair of DNA double-strand breaks, homologous recombination is a mechanism for generating genetic diversity by swapping segments of parental chromosomes. During which process does swapping occur?
Answer:
during cell division (meiosis)
Explanation:
During meiosis, DNA double-strand breaks (DSBs) between homologous chromosomes are induced and, after the exchange of DNA pieces, breaks are jointed by specific DNA-repair enzymes (such as DNA glycosylases). DSBs can be repaired by two different mechanisms: non-homologous end-joining (NHEJ) and homologous recombination (HR), which have different functional consequences. These mechanisms of recombination have potential for increasing the genetic variation since the resulting gametes will contain a different set of chromosome fragments.
Which of these instruments can show the arrangement of atoms on the surface of a molecule? 10 points A) scanning tunneling microscope (STM) B) compound light microscope C) scanning electron microscope (SEM) D) transmission electron microscope (TEM
Answer:
A) scanning tunneling microscope (STM)
Hope this helps :)
Which gas is responsible for global warming and Which gas is responsible for ozone layer depletion?
Answer:
Green house gases like carbon dioxide, carbon monoxide, carbon tetra chloride, methane, sulphur dioxide, nitrogen dioxide, etc .. are responsible for Global warming and Chlorofluorocarbons and nitrides of oxygen are responsible for Ozone layer depletion.
Explanation:
One of the first things the IPCC concluded is that there are several greenhouse gases responsible for warming, and humans emit them in a variety of ways. Most come from the combustion of fossil fuels in cars, buildings, factories, and power plants. The gas responsible for the most warming is carbon dioxide, or CO2.
Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).
Which is not a source of funding for scientific research?
A. Government agencies
B. Scientific meetings
C. Private foundations
D. Emerging industries
Answer: Option D.
Emerging industries
Explanation:
Emerging industries is not a source of funding scientific research because the industries have not sustain the financial capability and stability to release funds or fund scientific research because they are still growing and they are not yet established and durable financially.
The emerging industries have to be well established and make alot of financial profits before they can find scientific researches.
A kitten weighs 3 pounds on earth, how much would the kitten weigh on the moon?
Answer:
3x1/6=1/2 pounds
Explanation:
Since weight is directly dependent on the acceleration of gravity, things on the Moon will weigh only 16.6% (≈ 1/6) of their weight on Earth.
DNA sequences that direct RNA polymerase to the initiation site are called ______________.
Answer: promoters
Explanation:
Promoters are DNA sequences that direct RNA polymerase to the initiation site. Promoter sequences are simply DNA sequences that helps in defining where the gene transcription by RNA polymerase will start.
Promoter sequences are located directly upstream and are an important part of the expression vectors as the binding of DNA to the RNA polymeras are being controlled by them.
What happened to the glomerular capillary pressure and filtration rate when you decreased the radius of the efferent arteriole
Answer:When the radius of the efferent arteriole become decreased, the stress and filtration rate each increased. When the radius of the efferent arteriole become increased, the stress and filtration rate each decreased. When you growth the blood stress, glomerular capillary stress and filtration rate will growth.
Explanation:
How would you write this number in scientific notation? (Use the carrot key to denote an exponent. ex: 6.02 x 10^23)
5,890,000,000,000 (The distance to the sun in km)
pls help.
Answer:
[tex]D=5.89\times 10^{12}\ km[/tex]
Explanation:
The distance to the Sun is 5,890,000,000,000. We need to write this distance in km.
A number can be written as [tex]x.0\times 10^y[/tex] in scientific notation where x is a real no and y is any integer.
There are 10 zeros in the given number and also there are 12 digits after. It would mean that,
[tex]D=5.89\times 10^{12}\ km[/tex]
So, the distance in scientific notation is : [tex]D=5.89\times 10^{12}\ km[/tex]
Which of the following statements about translational termination is correct?A. Accessory proteins called elongation factors recognize the stop codon in the mRNA to terminate translation.
B. The ribosome keeps translating until it reaches the end of the mRNA and falls off the transcript.
C. Peptidyl transferase breaks the bond between the growing polypeptide chain and the tRNA in the P site, but there is no new charged tRNA in the A site, which results in the termination of translation and release of the polypeptide.
D. A special stop-tRNA enters the A site and terminates translation.
E. Rho proteins bind to the mRNA when the ribosome pauses and stops translation.
Answer:
C
Explanation:
The correct answer here would be that the peptidyl transferase breaks the bond between the growing polypeptide chain and the tRNA in the P site, but there is no new charged tRNA in the A site, which results in the termination of translation and release of the polypeptide.
The translation process stops when the stop codon in the mRNA being translated enters site A in the translation complex. When this happens, the release factor recognizes the stop codon and makes the enzymes that form peptide bonds to add water to the last amino acid on the chain.
The addition of water leads to the breaking of the peptide bond by peptidyl transferase, causing the separation of the polypeptide chain from the tRNA and the eventual release of the protein.
Hence, the correct option would be C.
does the chalazae serves to anchor the egg yolk to the albumin?
Answer:
Ropy twisted strands of albumen
Anchor yolk to center of thick egg white
Explanation:
How would the absence of juxtamedullary nephrons affect the volume of urine and its osmotic concentration?
Answer:
Increase volume; decrease osmotic concentration
Explanation:
Nephron is the functional unit of a kidney.
The juxtamedullary nephrons is responsible for the development of the osmotic gradients. The osmotic gradient helps in ensuring the urine is well concentrated and helps in adequate water reabsorption.
The absence of juxtamedullary nephrons affect the volume of urine and its osmotic concentration by Increasing the volume and decreasing the osmotic concentration.
A chemist measuring the viscosity of oils records the instruments and methodology used, so that another scientist will be able to achieve exactly the same results of the experiment. This is an example of ___________.
Answer:
This is an example of replication.
Explanation:
Getting a similar outcome when a trial is rehashed is called replication. Replication is significant in science so researchers can check their work. The consequence of an examination isn't probably going to be very much acknowledged except if the examination is rehashed ordinarily and a similar outcome is constantly acquired.
Hence, This is an example of replication.
Answer: c. replication
Explanation:
Which of the following factors cause variations in seawater density, leading to ocean currents? 1- Sun's gravity 2- Wind 3- Moon's gravity 4- Temperature and salinity
Temperature and salinity
Answer: Temperature and Salinity
Explanation:
Temperature and salinity both contribute to variations in seawater density. Variations in seawater density cause currents to start flowing from low-density regions to high-density regions.
How was cell discovered?
Answer:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
Mike wanted to know if the weight of the chickens affected the number of eggs they laid each day. Which of the following graph axes is correctly labeled for showing his results?
Answer:
The weight of chickens would be on the x-axis (horizontal) and number of eggs would be on the y-axis (vertical)
Explanation:
The number of eggs a chicken has is dependent on the weight of the chicken
How would life be without television
Answer: Better and worse
Explanation: It would be better because then your not watching all this nonsense that you don't need to know, and because then you wouldn't be up in the house all the time watching TV to where, you stop excersing and spending more time with your family.
I could be worse because there are some edencational stuff on TV like the news, we wouldn't have entertainment.
Hope this helps^^
what are the disc shaped membranous structures inside of the chloroplast where the light-dependent reactions take place
Answer:
These are the thylakoids
Explanation:
The thylakoids which contains the chlorophyll is the primary site of photosynthesis. It is covered by layers of cell called the thylakoid membrane.These are the actual site for light dependent reaction.This membrane contains both photosytem I and ii, ATPase enzymes, and Cytochrome b6f complex.While the photosystem i and ii transfer elecrons during photosynthesis, the ATPase enzyme control the catalysis the phosphorylation of ADP to ATP needed for the light independent stage, the Cytochrome proteins acts as the ETC. involved in the transfer of electron during light dependent stage.
When thylakoids are packed together in disc shape they are refer to as Grana,(singular -granum).Each grana are linked together by intergrana.Thus two or more grana are linked by intragrana to form a single photosynthetic functioning unit.The entire structure is bath continuously by the fluid medium-Stroma.
Their stacked and disc shape is to increase the surface area available to accommodate enough ETC, needed to transport electron for chemiosmosis needed for photosynthesis.
Describe the Nebular Hypothesis Theory
Explanation:
The solar nebular hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas. The nebular hypothesis is the idea that a spinning cloud of dust made of mostly light elements, called a nebula, flattened into a protoplanetary disk, and became a solar system consisting of a star with orbiting planetsBenefits and Consequences of Technology As Hite and Seitz (2016) discuss in Chapter 8: Technology, technological advancements and changes may affect how we can work to find solutions for the global threats discussed so far. Technological advances can and do affect development in positive and negative ways. Besides biotechnology, identify one technology that seems to have the greatest potential positive effect on food security. Discuss any potential negative uses of that technology. Do the benefits of these technologies outweigh the potential negative consequences they have on food security
Answer: Digital technology
Explanation:
Digital technology is a technology that helps show that devices can be more compact, faster, lighter, and more versatile and that information can be stored locally or remotely without minding the capacity and moved around instantaneously and conviniently . It has been a catalyst for efficiency of innovation this recent times.
Digital technology have been the basis for precision agriculture, geographic information system a technology that has helped agriculture to be more precise and apt.
Precision agriculture include the use of computerized system/Remote sensing to monitor a field or farm on the appropriate amount of a particular input that is needed and where exactly. It has been used for fertilizer application, herbicide application and it has reduce wastage to the minimum and efficiency is ensured in terms of output and this has helped food insecurity. The potential benefits of digital agriculture outweighs its disadvantage.
For the following biomolecular interactions, choose the main weak force interactions that mediates them.
Interaction between hydrophobic (nonpolar) amino acid side chains van der Waals interaction
Repulsion between negatively charged backbone of DNA double helix van der Waals interaction
Interaction between water and carbonyl oxygen of guanine hydrogen bond
Answer:
Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.
Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.
Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding
Explanation:
The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.
For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.
The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.
Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.
This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.
Wood becomes petrified when its tissues are replaced by minerals. Although petrified wood is no longer part of a living organism, which property of life will still be present in the wood
Answer: Organization
Explanation: A piece of petrified wood was once part of a living organism that has had its tissues replaced by minerals. Which property of life will still be present in the wood?
a) homeostasis
b) response to stimuli
c) growth and reproduction
d) organization
e) metabolism
A petrified wood has had its organic remains or tissues replaced by minerals, a start to the slow process of being replaced with stone. The property of life still present in the wood would be that of organization which simply indicates that the petrified wood are made of cells--the most basic unit of life. As such, it still remains a highly organized, specialized entity with coordinated parts.
charles darwin is credited with outlining the principles of evolution by natural selection. what aspects of the scientific method can be identified in darwin's work
Answer:
Charles Darwin's work followed the rules of hypotheses creation and testing.
In order to prove a scientific suspicion, a true scientist has to follow the above methods.
So Darwin probably theorized that the offspring of certain living entities were by either environmental conditioning or by natural selection different genetically from their parent.
He tried this hypothesis over time and using the results he got, modified his theory.
Cheers!
What is a risk of using chemical pesticides on crops?