Before a cell can divide, it must copy one NUCLEOTIDE at a time in a process called DNA replication.
DNA replication is the process by which two identical DNA molecules are formed from one single, original DNA parent molecule. DNA replication takes place in all living organisms and is the basis for inheritance. During this process, the DNA make a copy of itself by copying all the nucleotide that are present in it.
A cell must copy each chromosome during a process called DNA replication before it can divide. DNA replication allows for the creation of two identical sets of chromosomes, which are then passed onto the newly divided cells. This ensures that each new cell has the same genetic material as the original cell.
Before a cell can divide, it must copy one chromosome at a time in a process known as DNA replication. DNA replication is vital to cell division because it ensures that each new cell has the same genetic material as the original cell. During DNA replication, the double helix of the DNA unwinds, and enzymes called DNA polymerases add nucleotides to each exposed strand, effectively creating two copies of the original DNA molecule. The result of DNA replication is two identical DNA molecules that are ready to be passed onto the two new cells during cell division.
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a population.
b
a biome.
c
an ecosystem.
d
a species.
Answer:
c
Explanation:
Answer:
a biome
Explanation:
a species is a type of animal kind, a population is the number of a certain species, an ecosystem is basically a big web of nature that is connected. so we can rule those 3 out. a biome is a part of land with similar climates and organism population
B) filtration.
C) active transport.
D) passive transport
Answer:
D) passive transport
Explanation:
Passive transport is the movements of molecules or ions from the region of its higher concentration to its lower concentration or along the concentration gradient. Since passive transport occurs along the concentration gradient, no energy input is required in the process. An example of passive transport is simple diffusion or facilitated diffusion.
Substances like oxygen pass through the cell without the use of energy and move from an area of high concentration to an area of low concentration that occurs during passive transport.
Further Explanation:
Every molecules that passes across the cell has to cross the cell membrane barrier. The cell membrane is mainly made up of lipid bilayer which allows the hydrophobic molecules to pass throughit and restricts the entrance of hydrophilic molecules. It also allows the uncharged molecules to pass through the cell by simple diffusionand restricts the passage of charged molecules.
There occurs two basic type of transport-
Passive transport is the type of transport wherein energy is not required for movement of molecules across the cell. During this type of transport the molecules moves from high concentration gradient to low concentration gradient.
The oxygen is an uncharged molecule that can easily pass through the cell from high concentration to low concentration without the expenditure of energy. In the active transport the molecules moves from low concentration gradient to high concentration gradient which requires energy in the form of ATP.
Osmosis is specifically used for the transport of water molecule from high concentration to low concentration gradient.
Learn more:
Answer Details:
Grade: College Biology
Subject: Biology
Chapter: Cell membrane
Keywords:
Cell membrane, lipid bilayer, hydrophilic molecule, hydrophobic molecule, active transport, passive transport, diffusion, osmosis, ATP, concentration gradient, charged molecule, uncharged molecules.
B) Convert sunlight into chemical energy to produce a food (sugar)
C) Break down food sources to produce ATP
Answer:
B
Explanation:
I answered this question before.
Answer:
B
Explanation:
Since plants are autotrophs, they produce their own food, so the purpose of photosynthesis is to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
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placoderms
ammonites
gastropods
Answer:
Trilobites
Explanation:
Both appeared on the same rock layer
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c. monoclonal antibodies
Answer:
c
Explanation: