MCAT Exam Complete
Questions with Verified Latest
2025-2026 Correct Answers
GRADED A+
Resolution
- ANS - differentiate close objects
magnification
- ANS - increase size
eyepiece magnification
- ANS - 10x
objective magnification
- ANS - 4x,10x,20x, 100x
Cell Theory
- ANS - -all living things composed of cells
-cell=basic functional unit of life
-cells from other cells only
,-cells have DNA (parent-->daughter cells)
total magnification
- ANS - eyepiece x objective
diaphragm (microscope)
- ANS - controls light
image contrast
hematoxylin
- ANS - -commonly used dye
-shows nucleic acids (DNA,RNA)
how does the dye hematoxylin show nucleic acids?
- ANS - binds to the negative sugar-phosphate backbone
phase contrast microscope
- ANS - -living organisms
-differences in refractive indices among different subcellular
structures
electron microscope
- ANS - -atomic level
,-samples must be sliced thinly and impregnated with heavy
metals for contrast
prokaryotes
- ANS - before nuclei (no nuclei)
eukaryotes
- ANS - after nuclei
types of prokaryotes
- ANS - bacteria and blue-green algae
prokaryote characteristics
- ANS - -unicellular
-no nucleus or membrane bound organelles
-cell wall in all
-ability to carry other pieces of DNA
What type of genetic material is present within prokaryotes?
- ANS - -single circle molecule of DNA
-within nucleoid region
, plasmids
- ANS - -circular DNA
-small
-few genes
-replicate independently
cocci
- ANS - spherical bacteria
bacilli
- ANS - rod-shaped bacteria
how do antibacterials work?
- ANS - tend to attack bacterial specific structures
Eukaryote characteristics
- ANS - -protists, fungi, plants, and animals
-cell walls in fungi and plants
-nucleus
-unicellular or multicellular
cytoskeleton proteins
- ANS - -actin filaments
Questions with Verified Latest
2025-2026 Correct Answers
GRADED A+
Resolution
- ANS - differentiate close objects
magnification
- ANS - increase size
eyepiece magnification
- ANS - 10x
objective magnification
- ANS - 4x,10x,20x, 100x
Cell Theory
- ANS - -all living things composed of cells
-cell=basic functional unit of life
-cells from other cells only
,-cells have DNA (parent-->daughter cells)
total magnification
- ANS - eyepiece x objective
diaphragm (microscope)
- ANS - controls light
image contrast
hematoxylin
- ANS - -commonly used dye
-shows nucleic acids (DNA,RNA)
how does the dye hematoxylin show nucleic acids?
- ANS - binds to the negative sugar-phosphate backbone
phase contrast microscope
- ANS - -living organisms
-differences in refractive indices among different subcellular
structures
electron microscope
- ANS - -atomic level
,-samples must be sliced thinly and impregnated with heavy
metals for contrast
prokaryotes
- ANS - before nuclei (no nuclei)
eukaryotes
- ANS - after nuclei
types of prokaryotes
- ANS - bacteria and blue-green algae
prokaryote characteristics
- ANS - -unicellular
-no nucleus or membrane bound organelles
-cell wall in all
-ability to carry other pieces of DNA
What type of genetic material is present within prokaryotes?
- ANS - -single circle molecule of DNA
-within nucleoid region
, plasmids
- ANS - -circular DNA
-small
-few genes
-replicate independently
cocci
- ANS - spherical bacteria
bacilli
- ANS - rod-shaped bacteria
how do antibacterials work?
- ANS - tend to attack bacterial specific structures
Eukaryote characteristics
- ANS - -protists, fungi, plants, and animals
-cell walls in fungi and plants
-nucleus
-unicellular or multicellular
cytoskeleton proteins
- ANS - -actin filaments
