Question

proton B, neutron C.atom D. electron 24. TEM and SEM have greater B. magnification than light microscopy C. field of view D. resolution 25. The jelly like fluid that fills prokaryotic and cakaryotic cells is called A. flagella B. tubulin C.actin D. membrane E. cytoplasm 26. Cofactors that are required for en ryme functionare A. proteins B.morgan substrates Corganic molecules D. D 27. What type of junction is associated with attaching adjacent cells to form ties? A. Tight junction B. Anchoring junction C. Gup junction Petticoat junction Dflagella 28. Which component of the cytoskeleton can be made with collagen? A. Intermediate filament B. Microtubule C. Microfilmen E. Cilia 29. Based on the endosymbiont theory which was coce a free living prokaryote? A. Chloroplast B. Golgi CLysosome Drough endoplasmic reticulum E B and D 30. Exporting large substances out of the cell can be accomplished by A. exocytosis B. facilitated diffusie Cendocytosis D. osmosis 31. Lipase is an enzyme which breaks down A. Sugar B. Proteins C. DNA D. Fats 32. Which is not true of the plasma membrane? A. Composed of triglycerides B. Has proteins integrated in it C. Is continually recycled D. is part of the endomembrane system EB and 33. Which is not a mechanism to regulate eneryme activity? A. competitive inhibition B. feedback inhibition C o-competitive inhibition D. prohibition D. Ribosome E.A,B, 34. Which would not be found in a prokaryote? A. DNA B. plasma membrane C. cytoplasm CD Cincreasing enzyme 35. Non-competitive inhibition of enzymes involves A binding to the active site B. binding to a second site function D. Mechanical 36. Moving vesicles across a cell is an example of A. Chemical work B . Pilates C. Transport work work 37. Synthesizing proteins from amino acids is an example of

Answer 1

24. TEM and SEM have greater resolution than light microscopy.

The answer is D. Resolution.

Explaination:

The electron microscopes use a beam of electrons to produce images of specimens whereas light microscopes use a light to produce images of specimens. Light microscopes showed only the shape and structure of the specimen in its image and electron microscopes such as tem and sem showed shape and structure of specimen along with its subcellular structures. Therefore, electron microscopes have greater resolution than light microscopes.

25. The jelly like fluid that filled in prokaryotic and eukaryotic cells is called Cytoplasm.

The answer is E. Cytoplasm.

Explaination:

Cytoplasm is a sticky and gel like fluid that is filled in prokaryotic as well as eukaryotic cells. It consists of 90% water and 10% salts and proteins. Cytoplasm is mostly responsible for giving the shape to the cells and keeping cell organelles at their places.

26. The cofactors that are required for enzyme function are organic molecules.

The answer is C. Organic molecules.

Explaination:

The Cofactors of enzymes are the non proteinaceous compounds responsible for the biological activity of proteins. The cofactors are either the ion or the organic molecules. Organic molecules cofactors are also called as coenzymes. They are mostly the vitamins or derivatives of the vitamins.

27. The answer is B. Anchoring junctions.

Explaination:

Anchoring junctions are present between the adjacent cells. They attached to the extracellular matrix of the cells. They keep the cells together and form the tissue. Examples: heart and skin. These junctions are also called as desmosomes.