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1 Seal when making wine with yeast.
Greenhouse planting should be cooled down at night.
Or cantaloupe in Xinjiang, grapes, the temperature difference between day and night is large).
2 There are many pigments in the leaves of green plants.
Green chlorophyll a and chlorophyll b are the majority.
Therefore, the absorption rate of green plants in the blue and red light bands is relatively large.
The green light is reflected and appears green.
3 See details.
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Fermentation for sake brewing, controlling oxygen in respiration, resulting in only aerobic or anaerobic respiration, preserving food with carbon dioxide or refrigerators, and inhibiting enzyme activity and inhibiting respiration by controlling the ambient temperature, reducing the rate of decomposition of organic matter.
2 (1) Because chloroplasts are present in plants, chloroplasts are green because they absorb most of the visible light except green light!So the green light is reflected back, and then you just see the green on the leaves.
2) Pigments in plant cells.
3 Endomembrane, thylakoids, stroma.
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11.The human body is composed of organic matter, so it contains a large amount of C, which is the most basic element that constitutes an organism, and most of the human body is water, so it contains a large amount of H and O
2c, h, o, n are the four most abundant elements in the human body, which are widely present in the middle of various substances, that is, involved in the composition of compounds, so the content of human body weight must be more.
CA in the human body exists in the form of (compounds) in bones and teeth.
The human body contains iron, and the human body must color trace elements.
Iron, manganese, octane, copper, boron, molybdenum.
3 is in the leaves, because chlorophyll is magnesium-containing.
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c can form 4 covalent bonds, which facilitates the formation of macromolecular compounds.
The main constituent organic matter in the human body contains N proteins, and there is also a form of NCACO3 salt in the accounting.
Contains ferrous ions.
It is a constituent substance of hemoglobin.
Leaves and other very chloroplast organs.
MG is the main element that makes up chloroplasts.
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1.The water content in the human body is high, so the amount of H and O elements is high, and C is the central element that constitutes organic matter.
n is an important component of proteins.
CAF calcium fluoride.
2.Iron in the human body is found in the form of ferrous ions.
Green leaves, mg is an important component of chloroplasts.
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To generalize!It's just a conclusion drawn by human oral epithelial cells that doesn't necessarily fit all eukaryotic cells! And a lot of variables!
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1. Free diffusion; Active transport (purely conceptual question, small molecules such as water and gas pass through the cell membrane by free diffusion; Ions and macromolecules are transported through cell membranes by active transport).
2. Protein (protease will hydrolyze proteins specifically).
3. Ion channels (the transport of ions belongs to active transport, which requires carriers and energy, and respiratory inhibitors hinder energy**).
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1. Enzymes, some hormones, antibodies Ribosomes are free of the cytoplasmic matrix and attached to the endoplasmic reticulum Proteins cannot be synthesized.
2. Chloroplasts, mitochondria, ribosomes, centrosomes, chloroplasts, mitochondria, mitochondria, mitochondria.
3. Can aerobic bacteria and some can photosynthesize cyanobacteria.
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1.Centrifugal.
2.Cells lose water.
3.Proteins combine with polysaccharides to form glycoproteins, glycoproteins.
The most striking feature of the molecule is the presence of two high-energy phosphate bonds. When ATP is hydrolyzed, a large amount of free energy can be released. ATP is the most important energy conversion intermediate in living organisms, and the energy released by aqueous interpretation is used to promote various energy-required biochemical reactions in living organisms.
ATP is also a good phosphorylating agent. The substrate of the phosphorylation reaction can be an ordinary organic molecule or an enzyme. Phosphorylated substrate molecules have high energy (activated molecules) and are the activation step of many biochemical reactions.
5.Mitochondria have two membranes, the outer membrane separates the mitochondria from the surrounding cytoplasmic matrix, and the inner membrane folds to the inner lumen to form a crest, which increases the surface area of the inner membrane and is conducive to the smooth progress of the biochemical reaction of aerobic respiration. There are basal granules on the inner membrane and crest.
There are many enzymes involved in aerobic respiration in the intima, cristae, basal grains, and stroma.
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1.Genes control metabolic processes by controlling the synthesis of enzymes, which in turn control the traits of organisms; Genes can also directly control the traits of organisms by controlling the molecular structure of (proteins).
2.A genetic mutation is the pathway by which a new gene is produced, which is usually the original gene (allele); Genetic recombination usually occurs during the process (sexual reproduction) and refers to the recombination of genes that control (different traits).
3.Modern theories of biological evolution believe that (genetic mutations) and (genetic recombination) produce the raw materials of evolution.
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1. Enzyme protein.
2. Base pairs are added, missing or altered in sexual reproduction of different traits.
3. Mutant genetic recombination.
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The first and third ones are correct, but the answer to the third question is not quite accurate, and the book says: (mutation) and (recombination) to produce the raw materials of evolution.
Modified by integration, absolutely correct:
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