Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Which cell organelle is known as the 'powerhouse of the cell'?
Ribosome
Mitochondria
Lysosome
Golgi apparatus
Mitochondria
Mitochondria are known as the 'powerhouse of the cell' because they generate most of the chemical energy needed to power the cell's biochemical reactions. This energy is stored in energy-carrier molecules called adenosine triphosphate (ATP).
Mitochondria are known as the 'powerhouse of the cell' because they generate most of the chemical energy needed to power the cell's biochemical reactions. This energy is stored in energy-carrier molecules called adenosine triphosphate (ATP).
Mitochondria act like a power generator or power plant inside the cell, converting raw fuel into usable energy to keep all cellular machinery running.
Mighty Mitochondria Make Meaningful Money (ATP)
C6тАЛH12тАЛO6тАЛ+6O2тАЛтЖТ6CO2тАЛ+6H2тАЛO+Energy┬а(ATP) тАФ Overall cellular respiration equation
Cellular respiration occurs across the inner mitochondrial membrane through the Krebs cycle and oxidative phosphorylation. Energy derived from nutrient breakdown is used by the electron transport chain to synthesize ATP via proton gradients.
Mitochondria have their own circular DNA (mtDNA) and ribosomes.
They feature a double-membrane structure, with the inner membrane folded into cristae to maximize surface area for energy production.
Cells with high energy demands, such as muscle and sperm cells, contain thousands of mitochondria.
High efficiency in generating ATP through aerobic respiration
Cellular respiration processes generate reactive oxygen species (free radicals) that can cause oxidative stress.
Energy supply for muscle contraction
Metabolic activity in active organs like the liver and brain
Option A (Ribosome) is the site of protein synthesis.
Option C (Lysosome) contains hydrolytic enzymes for intracellular digestion and waste removal.
Option D (Golgi apparatus) packages and modifies proteins and lipids for transport.
B is correct тАФ Mitochondria are the primary source of cellular energy production (ATP), earning them the title of the powerhouse of the cell.
Make sure to memorize unique organelles that contain their own DNAтАФmitochondria and chloroplasts are frequently tested in railway and competitive exams.
Get instant step-by-step AI explanations, full shift Previous Year Papers (SSC GD, RRB, SSC JE), and regional rank analysis on the official Examoogle App.
Free Download тАв 100K+ Aspirants