Karin is reading the information that came with a new medicine she has to take. One of the ingredients is lactose (C12H22O11). What can Karin conclude about lactose based on the formula? * 1
The group of choices associated with the question was not given, however, the correct options are :
Some people may be allergic to lactose.
Lactose has a melting point of about 203 degrees Celsius.
Lactose is a key ingredient in many medicines.
A lactose molecule contains 12 atoms of carbon.
Answer:
The correct answer is -A lactose molecule contains 12 atoms of carbon.
Explanation:
It is clear from the chemical formula of lactose that it has three component that presents in a specific amount to form this compound. There are 11 atoms of oxygen, 22 atoms of hydrogen, and 12 atoms of carbon present in the lactose.
From the formula, it is also clear that it is one of the carbohydrates (disaccharide) as the basic formula of carbohydrate is Cx(H2O)y.
Why is meiosis cell division called reductional division?
Answer:
Meiosis is called reductional division because number of chromosomes and amount of DNA in daughter cells is reduced to half than that of parent cell.It is called equational division because number of chromosomes and amount of DNA in daughter cells remain equal to parent cells.
Explanation:
Hope this helps
Crown me as brainliest:)
How are humans immune to infectious diseases after they have already contracted the disease previously? and How do vaccinations work to provide immunity?
Answer:
Explanation:
Immunity to a disease is achieved through the presence of antibodies to that disease in a person's system. Antibodies are proteins produced by the body to neutralize or destroy toxins or disease-carrying organisms. Antibodies are disease-specific. Viruses make us sick by killing cells or disrupting cell function. Our bodies often respond with fever (heat inactivates many viruses), the secretion of a chemical called interferon (which blocks viruses from reproducing), or by marshaling the immune system's antibodies and other cells to target the invader. A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria.
spraying insects with a pesticide ddt causes some pesticide resistance in insect populations.The changes that occur in the insect population are related to a pattern in genetic inheritance. Repeated spraying kills many insects; however, more frequent spraying and higher concentrations fail to kill insects. In this environment, the spaying of insects appears to act as
SELECT ONE:
A. BIOLOGICAL FACTOR
B.GROWTH INHIBITOR
C.AN AGENT OF SELECTIVE PRESSURE
D. AN AGENT TO ELIMINATE OLD WEAK INSECTS
Answer:
D. AN AGENT TO ELIMINATE OLD WEAK INSECTS
Explanation
Because when older bugs get poisoned they have a less of a chance to survive because their already old and crippled.
But using cinnamon is a more effective way of killing bugs and ants and it does not harm children or other house hold animals that you may have.
Some students were discussing running the mile in PE. The students all agreed that the cardiovascular system was very important but they could not agree on what other system was important.
Which of the following claims and reasoning would be MOST beneficial in their argument? (AKS 2b)
A.
Student 2 said the digestive system was also important because it breaks down waste produced by running, which the cardiovascular system transports to all the cells.
B.
Student 3 said the immune system was also important because it releases sweat from the body while running, which the cardiovascular system will transport away from all the cells.
C.
Student 1 said the respiratory system was also important because it brings oxygen into the body while running, which the cardiovascular system transports to all the cells.
D.
Student 4 said the muscular system was also important because it produces nutrients in the body while running, which the cardiovascular system will transport away from all the cells.
Answer:
C
Explanation:
Which of the following describes the secondary structure of amino acids? (4 points)
A chain sequence of amino acids
Hydrophobic interactions between side chains
Disulfide bridges between side chains
Alpha helix coil held together by hydrogen bonding
Answer:
Alpha helix coil held together by hydrogen bonding
Explanation:
The primary structure of a protein is the linear chain of amino acids that form the polypeptide.
The secondary structure of a protein is the arrangements of adjacent amino acid residues in the chain. These structures are maintained by hydrogen bonds, and the major structures adopted by proteins are α-helices and β-sheets.
The tertiary structure of a protein is the 3D shape of the protein, determined by interactions between amino acid side chains
Finally, the quaternary structure refers to the fact that most proteins are made up of more than one amino acid chain. They interact with one another to form the final structure of the protein.
Answer:
A
Explanation:
It is asking for the primary structure which is the first form of the proteins. So it is just a long chain of amino acids.
Does mitosis or meiosis occur more frequently in your body? Explain your answer
Answer:
Mitosis
Explanation:
Meiosis is the splitting of sex cells which happens during reproduction. Mitosis is the splitting of body cells in order to make more body cells. Mitosis is how your body grows, therefore it occurs more frequently because the body is not constantly reproducing.
In the human body, mitosis occurs more frequently than meiosis. Mitosis is a type of cell division that happens in somatic cells, which are non-reproductive cells.
It is responsible for growth, repair, and maintenance of tissues in the body. On the other hand, meiosis occurs only in reproductive cells, such as sperm and egg cells, and is involved in the formation of gametes for sexual reproduction.
Here is a step-by-step explanation:
1. Mitosis: Mitosis is a process where a single cell divides into two identical daughter cells. It consists of several stages: interphase, prophase, metaphase, anaphase, and telophase. During interphase, the cell grows, replicates its DNA, and prepares for division.
Then, in prophase, the DNA condenses into chromosomes, and the nuclear membrane breaks down. In metaphase, the chromosomes align in the middle of the cell. Next, in anaphase, the chromosomes separate and move to opposite ends of the cell. Finally, in telophase, two nuclei form, and the cell divides into two daughter cells.
2. Meiosis: Meiosis is a specialized type of cell division that produces gametes with half the number of chromosomes as the parent cell. It involves two rounds of division, resulting in the formation of four haploid cells. Meiosis consists of two main stages: meiosis I and meiosis II.
In meiosis I, the homologous chromosomes pair up, exchange genetic material in a process called crossing over, and then separate, reducing the chromosome number by half. Meiosis II is similar to mitosis, as the sister chromatids separate and move to opposite ends of the cell. The end result is the formation of four genetically unique haploid cells.
Although both mitosis and meiosis are essential for different purposes, mitosis occurs more frequently in the body because it is involved in the growth, repair, and maintenance of tissues.
To know more about mitosis refer to
https://brainly.com/question/32255070
#SPJ6
Which kind of environmental change would a tornado be?
short-term, because it occurs very quickly
long-term, because it lasts a long time
short-term, because it affects only a small area
long-term, because they have been happening for millions of years
Answer:
short-term, because it happens fast please tell me if its right or wrong i will edit it :D
Explanation:
The image below shows __, which is a result of cohesion.
a
surface tension
b
low density solid
c
capillary action
d
high heat capacity
HELP PLSSSSS PLS PLS PLS
Answer:
1- The polar section of a phospholipid is the part with the phosphate group. This is sometimes called the polar head of the molecule.
2- The phosphate group is the negatively-charged polar head, which is hydrophilic. The fatty acid chains are the uncharged, nonpolar tails, which are hydrophobic.
Explanation:
GIVING BRAINLIEST FOR CORRECT ANSWER PLZ HURRY TIMED!!!
Which statements explain the relationship between photosynthesis and cellular respiration? Check all that apply.
The glucose that plants use for energy is made by animals in cellular respiration.
Glucose is a reactant in both photosynthesis and cellular respiration.
The oxygen released by photosynthesis is breathed in by animals to break down glucose.
Carbon dioxide is a product of both photosynthesis and cellular respiration.
The carbon dioxide released by animals is used to build glucose in photosynthesis.
Answer:
Explanation:
Aerobic respiration is a set of metabolic reactions that take place in the presence of oxygen, occurring in a cell to convert chemical energy into ATPs. Anaerobic respiration is a process of cellular respiration where the high energy electron acceptor is neither oxygen nor pyruvate derivatives.
please help please help
Answer:
It allows passage of particles into and out of the cell.
Explanation:
Step 4: Conduct research to support your claim. A) For each part of your claim, conduct research to provide two examples of scientific information that supports it
Answer:
Research for species is done by microscopic view. The micro organism like fungi and bacteria are difficult to be observed by naked eye.
Explanation:
The research process includes the detailed view of the properties of micro organism. Their way of living separates them from each other. Parasites used to live in the body of their victim.
what are the proteins used in active transprot called
BEST ANSWER GETS BRAINILEST
What is the chemical equation for the light-independent reactions (Calvin Cycle) of photosynthesis?
Hello! Your answer is shown below :
The chemical formula for the reaction is + + = ( ) + , but there are many individual steps leading to the overall result. This photosynthesis process can be separated into two parts: the light-dependent reactions and the dark reactions.
Hope this helps! And have a great day! :)
species of bacteria can evolve more quickly than species of mammals because bacteria have--
Answer:
higher rates of reproduction
and no back bones
Explanation:
ANSWER THIS AND GET 30 POINTS!!!
Do you think hand span is a simple Mendelian trait like pea plant flower color?
Answer:
yes
Explanation:
please help.
what happens to a monomer once it is used to create a polymer?
A. the monomer can be reused once the polymer is deconstructed
B. the monomer is destroyed
C. The monomer is permanently part of the polymer
The monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
What is Monomer?A monomer is defined as a molecule which can react with other monomer molecules to form a larger polymer chain or three-dimensional network in a process called polymerization.
These are described as atoms or small molecules which bond together to form more complex structures known as polymers. There are four main types of monomer which include sugars, amino acids, fatty acids, and nucleotides.
Monomers can also be reused again when the polymer is deconstructed.
Thus, the monomer can be reused once the polymer is deconstructed. So, the correct option is (A).
Learn more about Monomers, here:
https://brainly.com/question/18784783
#SPJ2
Which type of energy causes the equator to be hotter than the north pole?
Answer: solar energy
Explanation:The amount of solar energy in a given area is greater at the equator than in an equal area at the poles, which is why the equator temperature is warmer than the polar temperatures.
Answer: solar energy
Explanation: I took the test
Which statement is true about viruses?
O They are more complex in structure and function than bacteria
O They are eukaryotic cells
O
They consist of a nucleic acid surrounded by a protein coat
о O
They are usually not pathogenic
Answer:
option C is correct
Explanation:
virus are made up of nucleic acid and surrounded by protein coat
what is a natural method to prevent the spread of weevil in food stock?
Answer:
Prevent Grain Weevils
Inspect all grains upon purchase.
Freeze grains for at least one week to kill any eggs.
Buy grains in small quantities and eat within a reasonable time.
Store grains in tightly sealed glass, metal, or sturdy plastic containers (not bags).
Explanation:
By 40-60 years after farm fields had been abandoned, the amount of herbaceous plants decreased. Give one reason why the amount of herbaceous plants decreased as the amount of trees increased.
Answer:
Explanation:
Herbaceous plant are plants that lack woody stem, they include mostly annual crop and perennial crop.
The reduction in the population of herbaceous plant over the years is due to competition. The competition intensity is usually high due to limited supply of resource and the woody plant out compete the herbaceous plants leading to a gradual decline in the population.
Competition intensity is usually high during dry season when herbaceous biomass and soil water content were at the lowest level at this time the herbaceous plant finds it difficult to thrive well with the limited resource while the woody plant utilizes the little resource and keeps on thriving. All this reduce herbaceous population after several years of the field been abandoned.
How oxygen is obtained by cells and How cells obtain nutrients
Thanks.
Answer:
When you breathe your body cells uses oxygen from the environment to get energy and when you eat any food, your body cells use oxygen to break down food as nutrients.A DNA strand has the sequence GTTCCAGAG. Which is the complementary strand of RNA? CAAGGTCTC AGGTTCACA CAAGGUCUC TGGAACTCA
Answer:
C. CAAGGUCUC
Explanation:
Since you are giving the complementary strand of RNA, Adenine (A) pairs with Uracil (U), Thymine (T) pairs with Adenine (A), and Cytosine (C) and Guanine (G) pair with each other. Thus, the answer would be CAAGGUCUC.
Does this make sense? Feel free to comment any questions you have! If this answer helped you, please consider leaving me a good rating and/or brainliest!!
The complementary RNA strand of the following DNA sequence: GTTCCAGAG is CAAGGUCUC.
TRANSCRIPTION:
Transcription is the process whereby a mRNA molecule is synthesized from a DNA template. During transcription, the sequence of DNA is used to synthesize the complementary mRNA sequence. Adenine pairs with Uracil (RNA) while Guanine pairs with Cytosine i.e. A-U, G-C. According to this question, a DNA strand has the sequence: GTTCCAGAG, the complementary RNA strand is CAAGGUCUC.Learn more at: https://brainly.com/question/9339389?referrer=searchResults
Will mark brainliest!
Please help!
Look at the photo above :)
Please put them in order
In this order, the correct order of mitosis and cytokinesis is the 2nd, 1st, 4th, 3rd, and 5th, where the cell gets divided into two daughter cells from a single parent cell.
What is the order of the mitosIs?Mitosis is the process by which cells divide into five stages: prophase, metaphase, anaphase, telophase, and cytokinesis and each stage is distinct because it serves a specific function. The first phase is prophase, in which the chromatids are condensed, followed by metaphase, in which the chromosomes are present in the metaphasic plate, and finally anaphase, in which the individual chromatids are separated as shown in the diagram, before telophase and cytokinesis.
Hence, in this order, the correct order of mitosis and cytokinesis is the 2nd, 1st, 4th, 3rd, and 5th, where the cell gets divided into two daughter cells from a single parent cell.
Learn more about mitosis here.
https://brainly.com/question/29776367
#SPJ2
Which of the following are grouped together to form chromosomes?
A.Traits
B.Genes
C.Cells
D.All the above
Answer: D) ALL THE ABOVE
HAVE A BLESSED DAY!!!!! :)
11. Explain the importance of having a cell's digestive enzymes enclosed inside lysosomes?
Answer:
The low pH of the lysosome is maintained by membrane proteins that pump protons (H + ions ) from the cytosol into the lysosome. ... Although it may seem dangerous for cells to contain enzymes that can digest most biological molecules, the contents of the cell are doubly protected from the digestive enzymes of the lysosome.
let me know if this help
Explanation:
Membrane proteins that pump protons from the cytosol into the lysosome keep the pH of the lysosome at a low level. The contents of the cell are doubly shielded from the lysosome's digestive enzymes, despite the fact that it may seem unsafe for cells to possess enzymes that can break down the majority of biological components.
What are membrane proteins?A membrane protein is defined as a protein molecule that is joined to or connected to an organelle's or cell's membrane.
It reveal surfaces that are optimal for binding to or incorporating into membranes.
Membrane proteins can be categorized into three groups based on their functions: integral, peripheral, and lipid-anchored.
The functions of membrane proteins are:
Membrane proteins mediate actions that are essential for biological cells to thrive. Receptors facilitate communication between the cell and its surroundings, membrane-embedded enzymes catalyze chemical reactions, and transporters that are embedded in membranes carry ions and bigger solutes across membranes.Thus, membrane proteins that pump protons from the cytosol into the lysosome keep the pH of the lysosome at a low level. The contents of the cell are doubly shielded from the lysosome's digestive enzymes, despite the fact that it may seem unsafe for cells to possess enzymes that can break down the majority of biological components.
To learn more about membrane proteins, refer to the link below:
https://brainly.com/question/28871788
#SPJ2
What are the products of the hydrolysis reaction?
Hydrolysis yields the breakdown of larger molecules into smaller one. For eg., Proteins upon hydrolysis produce amino acids.
What is hydrolysis?Hydrolysis is a type of chemical reaction in which water molecule is utilized to break the larger molecule into smaller component.
The chemical bonds (one or more) present between the molecule is cleaved through water in such a way one compound receives the H+ ion while the other receives the OH- ion.
In hydrolysis reaction water is the main reactant while in dehydrogenation reactions, water is formed as a by-product.
Hydrolysis is commonly exhibited by digestive enzymes. The complex food particles are broken into simple and absorbable units through hydrolysis.
The macromolecules such as carbohydrates, fats and proteins are broken into simple sugars, amino acids, fatty acid and glycerol by hydrolysis.
Hydrolysis is also an important event in biodegradation. It thus keeps the pollution in check.
Therefore, hydrolysis is an important reaction in biochemistry.
Learn more about hydrolysis, here:
https://brainly.com/question/12237250
#SPJ2
What is a vascular plant
Vascular plants are basically the plants which have vascular tissues. Vascular tissues are the conductive tissues which consist the xylem and the phloem which conduct water/minerals, food respectively. Most of the plants can be categorised as a vascular plant. :D
Need help with this
Answer:
her arms are puffy , red and swollen
Explanation:
that is literally a sign :/
