2 : production of energy
3 : replication of genetic material
4 : recognition of certain chemicals
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.
Learn More-
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: B. to reduce water loss from leaves in dry climate.
Explanation:
Spiny or needle shaped leaves is a kind of adaptation in plants which is typically seen in plants that survive in dry climatic conditions. The needle shaped leaves reduces the surface area of the leaves which prevents the loss of water through transpiration.
Answer: A. Bat
Placental mammals are those mammals which provides the placenta for the complete development of fetus. Bats are placental mammals which retains their embryo in it's uterus for the full term of the pregnancy, whereas Koalas and Kangaroos are marsupials. These mammals develop in the uterus initially, then transfers the underdeveloped fetus to the pouch where the development further continues.
ecosystem
biome
none of the above