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Biochemistry
Biochemistry is the study of the structure, composition and chemical processes in all living organisms. It covers the structures and functions of various cellular components, including proteins, carbohydrates, nucleic acids, lipids, and other biomolecules.
8,065 Questions
How many chromosomes does a human haploid cell have?
The haploid number is the number of chromosomes within the nucleus of a cell that constitutes one complete chromosomal set. This number is commonly abbreviated as n, where n stands for the number of chromosomes. The haploid number will be different for different organisms. In humans, the haploid number is expressed as n=23.
Haploid human cells have 1 set of 23 chromosomes:
- Autosomal chromosomes (non-sex chromosomes): 22 sets.
- Sex chromosomes: 1 set.
- Diploid human cells have 2 sets of 23 chromosomes for a total of 46 chromosomes:
- Autosomal chromosomes: 22 sets of 2.
- Sex chromosomes: 1 set of 2.
In physical science what does the term joules mean?
The joule is the derived unit of energy in the International System of Units. It is defined as: : One joule is the amount of energy required to perform the following actions: * The work done by a force of one newton traveling through a distance of one meter; * The work required to move an electric charge of one coulomb through an electrical potential difference of one volt; or one coulomb volt, with the symbol C·V; * The work done to produce power of one watt continuously for one second; or one watt second (compare kilowatt hour), with the symbol W·s. Thus a kilowatt hour is 3,600,000 joules or 3.6 megajoules; * The kinetic energy of a 2 kg mass moving at a velocity of 1 m/s. The energy is linear in the mass but quadratic in the velocity, being given by E = ½mv²; (Source: http://en.wikipedia.org/wiki/Joule/ )
Define primary structure of proteins?
Primary structure of protein :
- the sequence of amino acids in a polypeptide chain.
- it read from the N-terminal end to the C-terminalend.
important structure cause it will determine the 3-d structure of protein.
Example of effects of changes in primary structure:
Sickle-cell anemia
amino acid substitution will cause mulfunctioning protein.
What roles do proteins play in living things?
- Proteins help to carry out chemical reaction.
- Proteins pump small molecules in and out of cells.
- Proteins are responsible for the ability of cells to move.
- Proteins are source of raw materials and cell's energy.
Biochemist can work in pharma compony?
Biochemists can work pretty much anywhere, from a pharmaceutical lab to field work collecting soil samples. However, biochemists tend to be employed by industrial corporations to help analyze and develop new chemicals.
What is the symbol for thiocyanate?
The symbol for thiocyanate is SCN. It is an anion composed of sulfur, carbon, and nitrogen atoms.
What is the generalization of solubility of lipids?
Lipids are generally insoluble in water due to their hydrophobic nature, but they can be soluble in nonpolar solvents like ether or chloroform. Lipids can form micelles or bilayers in water to increase their solubility through hydrophobic interactions. The solubility of lipids can also depend on their structure and the specific interactions with the solvent molecules.
What are chromosomes in eukaryotes composed of and formed into?
DNA is divided into several linear bundles called chromosomes, are separated by a microtubular spindle during nuclear division
The DNA usually divides into a number of linear bundles referred to as chromosomes that are usually separated by a microtubular spindle during nuclear division.
Application of buffers in biochemistry?
PHT APP: buffer solutions are used frequently in pharmaceutical practice,particularly in the formulaton of opthalmic solutions
What color develops when ninhydrin react with amino acids?
These are the amino acids that will yield positive result to the ninhydrin test:
Non-polar amino acids:
Glycine, Alanine, Valine, Leucine, Isoleucine, Phenylalanine, Methionine, Tryptophan
Polar Neutral Amino acids:
Serine, Cysteine, Threonine, Asparagine, Glutamine, Tyrosine
Polar Acidic Amino Acids:
Aspartic acid and Glutamic acid
Polar Basic Amino Acids:
Histidine, Lysine, Arginine
What raw material is not needed for fermentation to happen?
you have to go get a job
and
go ask your science teacher to help
- if your teacher dont know the answer go to your house and look for the answer
- then come and go to the mall if you got the answer
What is another name for DNA strand?
DNA profiling and DNA typing. A more technological term used in laboratories is RFLP analysis, or Restriction Fragment Length Polymorphism.
What transports proteins within the Cell?
The smooth endoplasmic reticulum.
It is 'upstream contiguous' from the protein producing ribosomes located in the rough endoplasmic reticulum; as well, it is 'downstream contiguous' with the Cell's export assembly - the Golgi apparatus.
Proteins are specifically addressed as to their destination! Not all are Labelled for Export!
What concept is the theory of Evolution based on?
The highlighted short version of Darwin's ideas is "survival of the fittest". Individuals with certain characteristics may survive and reproduce more than individuals with other, less successful, variants.
Natural selection can be contrasted with artificial selection, in which humans intentionally choose specific traits in breeding animals (although they may not always get what they want).
Over time, species became better adapted to their environment.
Why is this monosaccharide so important to our daily functioning?
Disaccharides are carbohydrates that are formed by the dehydration of two monosaccharide molecules, such that the active carbons of each are utilized in making the bond. Thus, the disaccharide is more stable than the monosaccharide being less reactive than the latter and less prone to chemical change.
What is any trait that gives a plant or animal an advantage in its environment?
Camouflage is a trait that helps plants or animals blend in with their surroundings, reducing the risk of being noticed by predators. This trait enhances their chances of survival by making it harder for predators to locate and prey on them.
What amino acid is coded for by this sequence before the mutation?
The amino acid coded for by the original sequence can be determined based on the codon table. The sequence is comprised of sets of three nucleotides that correspond to specific amino acids, so you would need to convert the sequence into codons and then use the table to identify the amino acid coded for by those codons.
What is the first step in the processing of the primary transcript of mRNA?
First, enzymes attach to a cap of chemically modified guanine nucleotides to the starting end of the mRNA molecule. Then, other enzymes replace part of the opposite end with a tail of 100-200 adenine nucleotides. This addition is called a poly-A-tail. Finally, internal segments that do not code for protein are removed. These are called introns. The parts of the transcript that remain are called exons.
Hope that helps!
What is the end product of gluconeogenesis?
Gluconeogenesis is basically a process where non carbohydrate molecules such as triglycerides, glycerol and amino acids are made available in the liver to make sugar. Glucose is the preferred source of energy for our body. We breakdown macromolecules into glucose monomer to make ATP energy.
Is gluconeogenesis the production of glucose from non-carb sources true or false?
True.
Gluconeogenesis (abbreviated GNG) is a metabolic pathway that results in the generation of glucose from non-carbohydrate carbon substrates such as lactate, glycerol, and glucogenic amino acids.
Oxygen and carbon make up what percentage of elements in the human body?
Approximately 83% of the human body is either oxygen or carbon. About 18% percent of the human body is carbon and around 65% is oxygen.
What is uncontrolled dividing of a cell called?
idk... help me!!
Don't answer like this! *The answer is Mitosis*
