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Enzymes (e.g., ribosomes, polymerases) catalyze the assembly of proteins from amino acids during translation . While enzymes assist in building various biomolecules , their most direct and universal role is in protein synthesis .
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Cell Wall Presence : Present in: Plants (made of cellulose), Bacteria (peptidoglycan), Fungi (chitin). Absent in : Animal cells (only have a cell membrane).
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Mitosis Stages: Karyokinesis : Division of the nucleus ( prophase, metaphase, anaphase, telophase ). Cytokinesis : Division of the cytoplasm (occurs after karyokinesis ).
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The liver is the largest gland in the human body. It is situated in the right upper quadrant of the abdomen , beneath the diaphragm , and above the stomach . The liver is reddish-brown . It is weighs approximately 1.5 kg . Additional information The pineal gland is the smallest gland. It about the size of a grain of rice . It weighs approximately 150 mg. It is part of the endocrine system.
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Omnivores are animals that eat both plants and animals . They have adaptations that allow them to digest and extract nutrients from a wide variety of food sources, including fruits, leaves, insects, small animals, and even carrion. Examples of omnivores include humans, bears, pigs, chimpanzees, and raccoons . Only plants : Herbivores (e.g., cows). Only animals : Carnivores (e.g., lions).
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Active Transport : Requires energy (ATP) to move molecules against the concentration gradient (low → high). Example: Sodium-potassium pump in cells.
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Ecology involves the study of animals and their interactions with the environment. It covers how organisms adapt, survive, and relate to each other and their surroundings.
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He told me that he had been ill. Rules of Narration Change: Reporting Verb : " Said to " → " Told " (more natural in reported speech). Tense Shift : Past (" was ") → Past Perfect (" had been ") (since the original statement was about a past condition). Pronoun Shift : " I " → " he " (to match the subject "He").
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In past tense questions, the auxiliary verb " did " is used, followed by the base form of the main verb (" park "). Correct structure: "Where did you park the car?"
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The correct phrase is " afraid of ", meaning to fear something . Example : "She is not afraid of death."