Cell Physiology BDS lecture 4 Body Fluid Compartments

Cell Physiology BDS lecture -4 Body Fluid Compartments and MCQs Dr Pradeep Kumar Professor in Physiology KGMU, Lko

The electrogenic Na K ATPase plays a critical role in cellur physiology by a) using the energy ATP to extrude 2 Na out of cell in exchange for 3 K in to the cell b) When 3 sodium comes out and 2 potassium comes in the cell 2 ATP are synthesized c) 3 sodium and 2 potassium enter the cell by secondary active transport d) using the energy ATP to extrude 3 Na out of cell in exchange for 2 K in to the cell

Cell membrane a) Have variable protein and lipid content depending on the location of the cell b) Have stable composition throughout the life of the cycle c) Contain relatively few protein molecules d) Contain many carbohydrate molecules

The Golgi complex a) is an organelle responsible for breakdown of protein and lipids b) is an organelle that participates in post translational processing of protein c) is an organelle that participates in transcription d) is an organelle that participates in energy production

Gap junctions are intra cellular connections that a) allow for transport across a tissue barrier b) for sharing small molecules between cells c) serve as a barrier to prevent protein molecules with in cell membrane d) responsible for exocytosis

Which of the following is not found in the cell membrane? a) Cholesterol b) Phospholipids c) Proteins d) Nucleic acids

Protein synthesis occurs at the a) Mitochondria b) Lysosomes c) Within the nucleus d) Ribosomes

Oxygen enters a cell via? a. Diffusion b. Filtration c. Osmosis d. Active transport

The transport of H 2 O across a semi permeable is termed as a) Active transport b) Diffusion c) Osmosis c) facilitated diffusion

Which is not correctly matched a) Mitochondria Makes ATP b) Vacuoles Storage areas c) Smooth ER d) Golgi apparatus Synthesis of nuclear proteins Packages and distributes cellular products

Many substances are removed from the cell to outside by a) pinocytosis b) chemotaxis c) phagocytosis c) exocytosis

In a patient who has become dehydrated, body water should be replaced by which of the following a) distilled water b) 5% glucose solution c) 0. 9% Na. Cl d) hyperoncotic albumin

An action potential in a nerve a) is terminated by influx of Na+ excessive receptors b) is terminated by efflux of K+ c) is initiated by efflux of Na+ d) is initiated by influx of K+

An example of co-transport is a) Na+-K+ pump b) Ca++ pump c) Na+- H+ pump d) Na+ glucose transport

The appearance of which of the following distinguishes eukaryotic cells from lower units of life? a) DNA b) RNA c) Protein d) Nucleus

Which of the following characteristics are same in Simple diffusion and facilitated diffusion ? a) Can be blocked by specific inhibitors b) Do not require adenosine triphosphate (ATP) c) Require transport protein d) Transport solute against concentration gradient

Which of the following is primarily responsible for the upward movement of action potential graph? a) Inhibition of the Na 1, K 1 -ATPase b) Movement of K 1 into the cell c) Movement of K 1 out of the cell d) Movement of Na 1 into the cell e) Movement of Na 1 out of the cell

Which of the following transport mechanisms is not rate limited by career a) Facilitated diffusion via carrier proteins b) Primary active transport via carrier proteins c) Secondary co-transport d) Secondary counter-transport e) Simple diffusion through protein channels

Cells from the same person, the variation in the proteins expressed by each cell type is due to a) differences in the DNA contained in the nucleus of each cell b) differences in the numbers of specific genes in their genomes c) cell-specific expression and repression of specific genes d) differences in the number of chromosomes in each

Which of the following characteristics of a cell membrane is most affected by its cholesterol content? a) Thickness b) Ion permeability c) Fluidity d) Glycosylation e) Hydrophobicity