Cell membrane helps in the recognition of certain chemicals.
Further Explanation:
Plasma membrane is an outer boundary of the cell. It is composed of phospholipids and proteins. It is also called selectively permeable membrane because it allows only selective substances to cross. The transportation of these molecules from extracellular fluid to intracellular fluid is called cellular transport. It can be active and passive transport. Active transport required energy for the movement of substances, whereas in passive transport the molecules move across the membrane without using energy.
There are three common cellular substances that can pass through cell membrane are water, carbon di-oxide and oxygen. These substances are transported through passive transport. The carbon di-oxide and oxygen move through the area of higher concentration to lower concentration. The oxygen diffuses into the cell through lipid bilayer because it is more concentrated outside the cell, whereas carbon dioxide diffuses out of the cell because it is more concentrated inside the cell.
Water moves through the membrane by the process called osmosis. It moves freely either through protein channels or by slipping between the lipid tails of the membrane. The water comes from higher concentration to lower concentration.
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1. Learn more about a haploid cell during meiosis brainly.com/question/94813
2. Learn more about how are mitosis and binary fission similar brainly.com/question/6462270
3. Learn more about a dividing eukaryotic cell is treated with a drug that inhibits shortening of spindle microtubules. This will cause the cell division cycle to stop at the ____ stage. brainly.com/question/10767798
Answer Details:
Grade: High school
Subject: Biology
Chapter: Structure of cell
Keywords:
Plasma, membrane, recognition, chemicals, phospholipids, proteins, permeable, intracellular, molecules, oxygen, lipid, osmosis.
The cell membrane functions to recognize certain chemicals. Option 4 is correct.
Carbohydrates, proteins, and lipids are found on the cell membrane. Carbohydrates are covalently attached to proteins on the cell membrane to form glycoproteins. Lipids are attached to glycoproteins to form glycolic acid. These are called membrane carbohydrates. Most membrane carbohydrates are found on the surface of the cell and extend to the extracellular compartment. These membrane carbohydrates play an important role in the recognition of cells.
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Answer:
Steatosis hepatitis and fibrosis\cirrhosis.
Explanation:
Chronic and excessive alcohol consumption produces a wide spectrum a hepatic lesson the most characteristic of which are steatosis hepatitis and fibrosis\cirrhosis.
The closest algal relatives of land plants are Charophytes, as both share many distinctive features including similar metabolic pathways and the presence of cellulosic cell walls.
The closest algal relatives of land plants are the Charophytes. This group of green algae shares many distinctive features with land plants such as similar metabolic pathways, sequence of DNA, RNA and proteins, and the presence of cellulosic cell walls. Additionally, in both Charophytes and land plants, the sperm structure is the same which further supports their close relationship. However, it is important to remember that Charophytes remain aquatic, and although they are close relatives, they do not represent a transitional stage to terrestrial plants.
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Answer;
-Inhibitors
Chemical mechanisms that can turn off or reduce an enzyme are inhibitors.
Explanation;
-Enzyme inhibitors are molecules or compounds that bind to enzymes and result in a decrease in their activity. They can bind to an enzyme and stop a substrate from entering the enzyme's active site and/or prevent the enzyme from catalyzing a chemical reaction.
-Enzyme inhibitors are classified as either competitive or non-competitive inhibitors. Competitive inhibition occurs when the substrate and a substance resembling the substrate are both added to the enzyme.
-Non-competitive inhibitors are considered to be substances which when added to the enzyme alter the enzyme in a way that it cannot accept the substrate.
The human body does not constantly lose water through hydration and circulation. When someone is hydrated, he is drinking an enough amount of water to sustain the needs of his body. Circulation then helps this in distributing the water in different parts of the body.
The origin of each strand of the new double helices created after DNA replication - Each of the newly replicated helices is formed from a semi-conservative parent strand, and one daughter strand.
DNA replication is a part of reproduction, it is important is so every cell has the same set of DNA.
Thus, The origin of each strand of the new double helices created after DNA replication - Each of the newly replicated helices is formed from a semi-conservative parent strand and one daughter strand.
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