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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
NOPE! Or else fat people would just drink water to loose weight, instead if having to be on special diets and pharmaceuticals. Put oil in water and see what happens, they separate.
What is a false fact of amino groups?
A false fact about amino groups is that they are only found in proteins. In reality, amino groups can be found in a variety of molecules, including amino acids, amines, and neurotransmitters.
Do archaebacteria have a cell wall?
Yes, archaebacteria have a cell wall. However, the composition of their cell wall differs from that of other bacteria, as archaebacterial cell walls lack peptidoglycan. Instead, they contain unique molecules such as pseudopeptidoglycan or S-layer proteins.
No,DNA is a nucleic acid.DNA stand for Dioxyribose Nucleic Acid.
What is the geographical distribution of the ocean?
The ocean covers about 70% of the Earth's surface and is divided into five main basins: the Pacific, Atlantic, Indian, Southern, and Arctic Ocean. These oceans are interconnected, but the distribution varies with the Pacific Ocean being the largest and the Arctic Ocean being the smallest.
When a cell gets too big however what does it tend to do?
If a cell becomes too large, diffusion is too slow to provide the interior of the cell with proper nutrients. The DNA of the cell can not be copied fast enough, and the larger a cell is the less surface area the cell has.
What are the elements that make up 96 percent if the human body?
Short Answer:
The 4 atoms, O, C, H and N are about 96% of our mass, but with calcium added in, the group of 5 represents more than 97% of the body mass of the average person.
Accounting by Mass:
The mass of the human body is provided mostly by oxygen, carbon, hydrogen, nitrogen. Together these elements account for about 96% of the mass of a human.
Add in about a kilogram of calcium in the bones and body fluids and you are up to 97.4%. All of this depends on the particular person since water, our major component, can differ by 10% from one individual to another.
That said, typically the breakdown goes like this.
Oxygen: 65% of the mass
Carbon: 18% of the mass
Hydrogen: 10% of the mass
Nitrogen: 3% of the mass
Calcium: 1.4 % of the mass
Phosphorus 1.1% of the mass
With phosphorus, one has accounted for 98.5% of the mass of the typical human and that will change by a couple of tenths from person to person.
Accounting by Numbers:
Numerically we have nearly twice as many hydrogen atoms in our bodies as compared to all other elements combined. Specifically, hydrogen counts as 63% of our atoms by number, give or take a bit, but being so light it barely gets to 10% of our mass. Oxygen atoms count as 24% and carbon atoms are a mere 12% of the populations.
Together, our three basic organic building blocks account for 99% of all the atoms in the body.
Caveat:
As was said above, the water content of the human body weight varieties between 55 to 65 % from one person to the next and being the major component changes the numbers above a little for each individual.
Summary:
Almost 99% of the mass of the human body is made up of the six elements oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.
Most of the last 1% is made up of five elements: potassium, sulfur, sodium, chlorine, and magnesium, but a tenth of a percent or so is made up of another dozen or so elements which include those recognized as essential to health such as iron, iodine and fluorine as well as beneficial trace elements like manganese, copper and zinc.
Why is the disposal of nitrogenous waste a problem for animals but not for plants?
The nitrates in nitrogenous waste reduce the oxygen carrying capabilities of the haemoglobin in the blood of animals. Since plants do not have haemoglobin they can absorb it to help them make proteins.
Is there an inorganic compound that contains carbon?
Yes, some do. For example, CO2 is an inorganic compound containing carbon.
What is facillitated diffusion?
Facilitated diffusion is a type of passive transport where molecules move across a cell membrane with the help of transport proteins. These proteins create channels or carriers through which specific molecules can pass, helping them move from an area of high concentration to an area of low concentration without requiring energy input from the cell.
Metals rust when they are exposed to oxygen and moisture, causing a chemical reaction that forms iron oxide on the surface of the metal. This process is known as oxidation and weakens the metal over time, leading to corrosion.
What would happen to the tertiary structure if heated?
Heating a protein can cause it to denature, meaning it loses its tertiary structure as the interactions that maintain the shape are disrupted. This unfolding can lead to loss of function as the active site may become distorted and unable to bind substrates.
What three things is a nucleotide made of?
The components are a nitrogenous base, a five-carbon sugar, and a phosphate. The nitrogen compound is called a nucleobaseand combines with the sugar to form the nucleoside, and the phosphate binds to the carbon in the sugar.
How many chromosomes are in a human sperm Cell?
23 singles. Actually, for the astute, there are 22 autosomes and one sex chromosome.
What compounds are derived from lipids?
Steroids and fat-soluble vitamins are classified as derived lipid since they can be inactivated by saponification reaction, the structure therefore is not ester type but it is an alcohol type.
What are the basic life activities?
The basic life activities, also known as Activities of Daily Living (ADLs), include tasks such as eating, grooming, dressing, bathing, toileting, and transferring (moving from one place to another). These activities are essential for an individual to live independently and maintain their well-being.
What does a nucleotide contain?
The nucleic acid DNA is made up of a pentose sugar called deoxyribose, nitrogen bases (adenine, thymine, guanine and cytosine) plus a phosphate group. The nucleic acid RNA is made up of a pentose sugar called ribose, nitrogen baes (adenine, uracil, guanine and cytosine) plus a phosphate group.
What does boiling do to the enzymes in the liver?
Boiling can denature enzymes in the liver, meaning it can alter their shape and structure. This can render the enzymes inactive or less effective in carrying out their biological functions.
Do prokaryotic Cells contain Dna?
The Dna in prokaryotic Cells floats in the Cytoplasm as a single circular Chromosome.
Yes, all Prokaryotes (bacteria and archea and others) and Eukaryotes (e.g Insect, Animal, and Plant Cells) contain Dna in the Form of Chromosomes; without Dna there will be no reproduction.
What is the Cellular outside protective wall?
The cellular outside protective wall is called the cell membrane or plasma membrane. It acts as a barrier between the cell's internal environment and the external environment, regulating the passage of substances in and out of the cell. The cell membrane is composed of a phospholipid bilayer with embedded proteins that help maintain the cell's structure and allow for cell communication.
How many chromosomes are in a human somatic cell?
A human somatic cell typically contains 46 chromosomes.
Triglycerides are composed of one glycerol molecule bonded to three fatty acids.
The liver synthesizes several kinds of protein compounds.
The rest are synthesized at the Ribosomes of the Rough Endoplasmic Reticulum.
The Rough ER synthesizes proteins.
How does lamp-light effect plant growth?
Lamp light can positively affect plant growth just like any light. However, if the light is green, the plant will not absorb it because it reflects it. Artificial light can also cause some of the plant to grow closer to a light source, which is also known as phototropism.
When and why did Purdue mfg change the composition of Oxycontin?
Purdue Pharma reformulated OxyContin in 2010 to make it more difficult to abuse by crushing or breaking the pill. This change was in response to concerns about the widespread abuse and misuse of OxyContin, which had become a major public health issue in the United States.
