A catalyst accelerates a chemical reaction in a cell.
A catalyst is a substance that increases the rate of a chemical reaction without undergoing any permanent chemical change itself.
Catalysts work by lowering the activation energy required for a reaction to occur. Activation energy is the energy barrier that must be overcome for a reaction to proceed.
By reducing the activation energy, a catalyst makes it easier for reactant molecules to come together and undergo chemical transformations, ultimately speeding up the reaction.
Catalysts are essential in biological systems as they enable various biochemical reactions to occur at the relatively mild conditions found inside cells, which would otherwise require higher temperatures or longer reaction times without catalysis.
In cells, enzymes are the most common type of catalysts. Enzymes are highly specific protein molecules that catalyze specific biochemical reactions, ensuring the efficient and precise functioning of cellular processes.
Learn more about Enzymes here:
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Answer:
catalyst
Explanation:
a lipid bilayer
b. semi-permeable
c. lack of compartmentalization
d embedded proteins
Answer:
lipidbilayer
Explanation:
-community
-habitat
-population
Answer:
biodome
Explanation:
(B) 25 percent
(C) 50 percent
(D) 75 percent
Answer: The correct answer is- (C) 50 percent.
Genotype of parents are- Rr ( representing heterozygous dominant ) and rr ( homozygous recessive).
Dominant trait ( depicted by capital letter allele such as 'R' for round seeds) masks the expression of recessive trait ( depicted by small letter allele such as 'r for wrinkled seeds').
As per the information in the question, round seeds is a dominant trait ( Rr, expressed in heterozygous dominant form) over wrinkled seeds (rr), which is recessive trait.
When the given parents are crossed, they produce offspring with the genotypes rr ( showing wrinkled seeds) and Rr ( round seeds) in the ratio 1:1.
Thus, the probability that the offspring will have wrinkled seeds is 50 percent.
Refer punnet square.
Answer:
1) Conduction.
Heat transfers to a spoon as the heat energy is passed from the coffee to the spoon through conduction.
2) Radiation
The heat on the glass surface gets radiated into the chair which causes the chair to warm up.
3) Convection
The globs are hot and less dense, which rises to the top whereas the cold globs are more dense which causes it to settle down.
1. Hot coffee warms the spoon through conduction,
2. a chair warms through radiation from the fireplace,
3. decorative lamp globs rise through convection.
1. Hot coffee is stirred with a spoon, the spoon gets hot due to conduction.
2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of radiation.
3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to convection.
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the answer is A.RIBOSOMES
B. sex chromosomes
C. dominant chromosomes