Which of the following best describes an entropy?
Which best describes ENTROPY? … Entropy refers to DISORDER, the unusable energy that escapes a system.
What is the correct definition of entropy quizlet?
Entropy. It is the measure of disorder (randomness) in a system. The thermochemical variable ‘S’ stands for the amount of randomness in a system.
What is entropy in thermodynamics quizlet?
entropy. a measure of disorder. internal energy. the total kinetic and potential energy due to the motions and positions of the molecules of an object.
Which of the types of cellular activities can proceed without ATP energy?
Three transport processes that do not require energy are; diffusion, osmosis and facilitated diffusion.
What is true entropy?
The entropy is a measure of the amount of energy dispersal. In other words, it is a measure of how energy can be distributed throughout a chemical system, which pretty much matches (a) . … From the third law of thermodynamics, the entropy of a perfect crystal at 0 K is zero.
Which process is an example of entropy decreasing quizlet?
Which process is an example of entropy decreasing? Steam condenses to liquid water. State the second law of thermodynamics in terms of energy flow and in terms of degradation or distribution of energy.
Which organelle is the storehouse for most of a cell’s genetic information?
The nucleus is a membrane-enclosed organelle found in most eukaryotic cells. The nucleus is the largest organelle in the cell and contains most of the cell’s genetic information (mitochondria also contain DNA, called mitochondrial DNA, but it makes up just a small percentage of the cell’s overall DNA content).
What process typically regulates the enzymes?
What is it called when an enzyme changes it shape upon binding to a substrate? … what process typically regulates the enzymes involved in metabolic reactions? Feedback inhibition/negative regulation. Organisms that can manufacture their own chemical energy are called?
Which process requires no energy from the cell?
Passive transport requires no energy from the cell. Examples include the diffusion of oxygen and carbon dioxide, osmosis of water, and facilitated diffusion.
What holds an organism’s hereditary information?
We now know that the DNA carries the hereditary information of the cell (Figure 4-2).
What structure in A cell’s nucleus holds the hereditary information?
Chapter 4: Cell Reproduction Vocabulary
|chromosome||the structure in a cell’s nucleus that holds the hereditary information|
|fertilization||the joining of an egg and sperm|
|genes||the sections of DNA that contain instructions for producing specific proteins|
|sperm||male relationship cells|
Which part of the cell holds genetic information in the molecule DNA?
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
How is information from DNA passed?
During the process of transcription, the information stored in a gene’s DNA is passed to a similar molecule called RNA (ribonucleic acid) in the cell nucleus. … Translation, the second step in getting from a gene to a protein, takes place in the cytoplasm.
How does genetic information is organized in genes on chromosomes?
Chromosomes and genes. Genes are arranged linearly along the length of each chromosome (like beads on a string), with each gene having its own unique position or locus. In a pair of chromosomes, one chromosome is always inherited from the mother and one from the father.
How do cells store genetic information?
DNA stores biological information in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix. … Each of the 46 chromosomes in a human cell’s nucleus bears thousands of genes.
Which of the following is the best explanation of the role of DNA and RNA in making proteins?
Which of the following is the BEST explanation of the role of DNA and RNA in making proteins? DNA unwinds into two separate strands, and an exact copy of each is produced during replication. … During translation, each base in the mRNA results in an amino acid being added to a chain, and a protein is formed.
How is the genetic code passed from parents to offspring?
One copy is inherited from their mother (via the egg) and the other from their father (via the sperm). A sperm and an egg each contain one set of 23 chromosomes. When the sperm fertilises the egg, two copies of each chromosome are present (and therefore two copies of each gene), and so an embryo forms.
Why DNA is most suited for its role as a carrier of genetic information?
With the exception of certain viruses, DNA rather than RNA carries the hereditary genetic code in all biological life on Earth. DNA is both more resilient and more easily repaired than RNA. As a result, DNA serves as a more stable carrier of the genetic information that is essential to survival and reproduction.