Enzymes do not increase delta G of a reaction. Delta G remains the same in an enzymatic reaction. Enzymes fasten reactions by either decreasing the activation energy or by producing binding energy and in both of these cases there is no impact on delta G so it remains the same, that is why statement 1 is incorrect. Statement 2 is correct because most of the enzymes are made up of proteins which is a polymer of amino acids. Statement 3 is also correct because enzymes lower the activation energy as already mentioned. Statement 4 is correct too. Enzymes are very specific to the kind of substrate to which they bind. Enzymes are bond specific, stereo specific & group specific of the substrate to which they bind.
Enzymes are biological catalysts that lower the activation energy of reactions, are made of amino acids, and are specific to their substrates. They do not, however, increase the Gibbs free energy (ΔG) of the reactions they catalyze.
The statement 'they increase the ΔG of reactions' is not true about enzymes. Here 'ΔG' represents the change in Gibbs free energy. In a chemical reaction, enzymes function to lower the activation energy which speeds up the reaction, but they do not increase the ΔG of the reaction.
The other statements about enzymes made of amino acids, lowering the activation energy, and being substrate-specific are true. In essence, enzymes are biological catalysts that speed up reactions but do not change the overall energy change (ΔG).
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Answer:
0.01%
Explanation:
According to the ten percent rule of energy transfer, whenever energy is transferred from one trophic level to a higher trophic level only 10% of total energy available at the lower level gets transferred to a higher one.
Therefore, when the energy is transferred along with the food chain:
grass → grasshopper → mouse → snake → hawk, from grass to hawk there is a loss of 10% of energy at each level.
Therefore, the hawk only gets 0.01% of the energy from the grass.
Answer:
The best answer is Grass. The grass is photosynthetic, which means grasses make their energy from the sun. About 10% of this total energy is available to other organisms in the food chain.
Explanation:
Answer:
If this was edmentum. this was my question and answer
Explanation:
see pic below
Answer:
Ok, no boxes but whatever
Mammals - Endothermic Homeostasis (Warm Blooded), Hairy Body, Have babies live
Birds - Endothermic Homeostasis(Warm Blooded), Have eggs, feathers, claws
Bacteria - Single celled, use binary fission to divide
Fungi - Multi or single celled, have chitin cellular walls
Plants - Have cellulose plant walls, multicellular organism
Archae Bacteria - Same as normal, except they live in crazy enviorments, like at the bottom of the ocean or in a volcano or radiation pool
Protozoa - Single celled organism class, like ameoba
Answer:
oxygen and gluclose
Explanation:
The two essential reactants for cellular respiration are glucose, sourced from food, and oxygen, derived from the air. They combine in the process of cellular respiration to produce ATP (energy), carbon dioxide, and water.
The cellular respiration process in living organisms, primarily in eukaryotic cells such as plant and animal cells, requires two primary reactants: glucose and oxygen. Glucose (C6H12O6) is a simple carbohydrate that organisms derive from food, and oxygen (O2) is obtained from the air. During cellular respiration, these two reactants combine to produce energy in the form of ATP, alongside carbon dioxide and water as byproducts.
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-Gaseous planets slowly changed to rocky planets after colliding with meteorites.
-Water and ammonia condensed from gases to ice particles.
-Very large asteroids broke apart to form rocky planets, including Earth.
-The accretion of cosmic dust formed the seeds of planets, including Earth
The statements 'the accretion of cosmic dust formed the seeds of planets' and 'the denser rocky material in the solar nebula stayed closer to the sun' help explain how Earth formed. It is part of the solar system.
The solar system consists of the Sun and eight planets (i.e., Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune).
The solar system is also composed of Pluto (a dwarf planet) many different moons, asteroids, etc.
The solar system formed approximately 4.6 billion years ago from interstellar gas and dust.
Learn more about the solar system here:
Answer:
The accretion of cosmic dust formed the seeds of planets'
The denser rocky material in the solar nebula stayed closer to the sun
Explanation:
I took the Exam :)
Answer:
Walking alone late one night, you are startled by a moving shadow that you glimpse out of the corner of your eye. The sympathetic division of the autonomic nervous system is activated. When you realize it is just the neighbor’s pet, the parasympathetic division lessens your physiological arousal.
The sympathetic division of the autonomic nervous system activates when you're startled, initiating the 'fight or flight' response. Once the danger has passed, the parasympathetic division lessens physiological arousal, returning the body to a restful state.
The autonomic nervous system (ANS) is a part of the peripheral nervous system that acts primarily unconsciously and regulates bodily functions. When you were startled by a moving shadow, the sympathetic division of the ANS was activated, stimulating your 'fight or flight' response and increasing your heart rate, dilating the pupils, and halting digestion. Then, after realizing it was just the neighbor's pet, the parasympathetic division stepped in, reducing your physiological arousal by slowing your heart rate, constricting your pupils, and resuming digestion, thus restabalizing your body conditions.
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Answer:
Option (b).
Explanation:
Evolution may be defined as the change in the characteristics of the organism over several generation with respect to time. The natural selection acts as the main driving force for evolution.
Darwin is known as the father of evolution. According to natural selection, the individuals that are best adapted to their environment will survive and reproduce more and transfer their genes to the next generation.
Thus, the correct answer is option (b).
Answer:
The correct answer is option b.
Explanation:
Natural selection generally illustrates that some of the individuals in a population get adapted significantly with their surroundings, and as a consequence, will thrive. Due to this, the genes get inherited on to the next generation, which may help the coming generation to get well adapted to the present environment. Therefore, the individuals that adapt adequately will thrive and reproduce and will pass on the majority of the genes to the next generation.