TS EAMCET Cell Biology — practice questions
88 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice TS EAMCET Cell Biology in the app →A feature common to plant sieve-tube cells and mature mammalian RBCs isThe 'powerhouse of the cell' is theA feature common to prokaryotes and many eukaryotes (e.g. plants, fungi) isWhich organelle is the site of protein synthesis?According to the fluid-mosaic model, the cell membrane is composed mainly ofWhich is absent in a prokaryotic cell?Genetic material in a eukaryotic cell is primarily located in theThe cell theory was NOT proposed byWhich cell organelle contains hydrolytic enzymes for intracellular digestion?Plant cells differ from animal cells in havingThe endoplasmic reticulum studded with ribosomes is calledWhich of these is the largest among typical cells/structures?Who was the first scientist to see and describe a live cell?Which scientist discovered the nucleus of the cell?Matthias Schleiden, who studied plant tissues in 1838, was a GermanIn which year did Theodor Schwann report his studies of animal cells?From plant tissues, Schwann concluded that which feature is unique to plant cells?Who explained in 1855 that new cells form by division of pre-existing cells?The statement Omnis cellula-e cellula means that every cell arises fromWhich statement belongs to the cell theory as understood today?The original theory of Schleiden and Schwann failed to explainCells that have a membrane bound nucleus are calledThe semi-fluid matrix that fills the volume of a cell is theWhich organelle is non-membrane bound and found in all cells?Which non-membrane bound organelle of animal cells helps in cell division?Which organisms have the smallest known cells?Which is the largest isolated single cell?A human red blood cell is about how many micrometres in diameter?Which bacterial shape is described as spherical?A comma-shaped bacterium is known as aWhich prokaryotes lack a cell wall around the cell membrane?Small circular DNA outside the main bacterial chromosome is calledA phenotypic character often conferred on bacteria by plasmid DNA isMesosomes of prokaryotes are essentiallyBacteria that take up the Gram stain are calledA thick and tough glycocalyx of a bacterium is called aA loose sheath form of glycocalyx in bacteria is known as theIn a bacterium the cell wall mainly providesIn cyanobacteria, membranous extensions containing pigments are calledA bacterial flagellum is made of which three parts?Small bristle like fibres on a bacterial surface that help attachment areThe two subunits of a prokaryotic 70S ribosome areEukaryotic ribosomes have a sedimentation coefficient ofIn ribosome sizes, the letter S stands forA chain of ribosomes attached to a single mRNA is called aWhich structure is absent in almost all plant cells but present in animal cells?The plasma membrane is mainly composed ofThe major lipids of the cell membrane are arranged in a bilayer. They areIn the membrane bilayer, the polar heads of lipids faceThe human erythrocyte membrane has roughly what percentage of protein?Membrane proteins lying on the surface of the membrane are classed asThe fluid mosaic model of the membrane was proposed byMovement of water by diffusion across a membrane is calledPolar molecules cross the membrane with the help ofThe Na+/K+ pump is an example ofPassive transport across the membrane takes placeThe cell wall of algae is made of cellulose, galactans, mannans andThe middle lamella that glues neighbouring plant cells is mainlyWhich structures pass through cell walls and connect the cytoplasm of neighbouring plant cells?In a maturing plant cell, the secondary wall is laid downWhich organelle is not a part of the endomembrane system?The major site of lipid synthesis in the cell is theThe convex face of the Golgi apparatus, which receives vesicles from the ER, is theThe principal function of the Golgi apparatus isLysosomal enzymes are optimally active atThe single membrane that surrounds a plant vacuole is theIn plant cells the vacuole can occupy up to what share of cell volume?In Amoeba, osmoregulation and excretion are carried out by theInfoldings of the inner mitochondrial membrane are calledMitochondria are called power houses of the cell because theyThe mitochondrial matrix contains which type of DNA and ribosomes?Which plastids contain fat soluble carotenoids giving yellow, orange or red colour?Plastids that store starch, as in potato, areWhich leucoplasts store oils and fats?Stacks of thylakoids in a chloroplast are calledIn a chloroplast, chlorophyll pigments are located in theWho first observed ribosomes as dense particles under the electron microscope in 1953?Which of these is a component of the cytoskeleton?Cilia are small outgrowths of the cell membrane that work likeThe axoneme of a cilium or flagellum shows which arrangement of microtubules?The wall of a centriole has how many evenly spaced peripheral fibrils?In which year did Robert Brown describe the nucleus?Nuclear pores allow movement of which molecules between nucleus and cytoplasm?Which mature cell types lack a nucleus?The nucleolus is the site of active synthesis ofChromatin contains DNA, RNA and basic proteins calledA chromosome with its centromere in the middle forming two equal arms isA chromosome with a terminal centromere is called