GCU BIO 182 LAB MIDTERM
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Total Magnification - ANSWER Oculars X Objective Lens
Parts of Microscope - ANSWER o Oculars
o Objective lens
o Stage
o Stage clamp
o Iris diaphragm lever
o Light
o Body / Arm
o Coarse Focus Adj. knob
o Fine Focus Adj. knob
o Mechanical Stage Adj. Knob
Bacteria, Protist - ANSWER ______________ organization are simple, _____________ organization are
complex.
Protist, Bacteria - ANSWER ______________ have membrane-bound nuclei & organelles,
______________ have no nucleus
Bacteria, Protist - ANSWER ______________ DNA is NOT in the nucleus, ______________ DNA is found
in compact chromosomes.
Protist, Bacteria - ANSWER ______________ are typically larger in size then ______________.
Extremophiles - ANSWER _________________ are organisms that live in "extreme" environments.
, Extremophiles Examples - ANSWER o Acidophiles like acidic environments that have low pH levels.
o Alkaliphiles like alkaline environments that have a high pH levels.
o Anaerobic thrive in areas without oxygen.
Coccis - ANSWER ___________ are round bacteria
Bacillis - ANSWER ___________ are rod shaped
Spirillums - ANSWER ____________are spiral shaped
Euglena - ANSWER o Small single cell body organisms
o Sort of a combination of plants and animals
o They make their own food, but can eat other things like animals
o Live in water
o Slimy & resemblance of algae
Paramecium - ANSWER o Small single cell organisms
o Have jelly like fluid called protoplasm inside them
o Their food and other materials float in the protoplasm
o Live in lakes, ponds, streams, rivers, puddles, moist soil, or the body of animals
o Tiny hair-like things called cilia around the outside of their cell
Diatoms - ANSWER o Heavy silica celled walls
o Dead cells sink to the ocean floor forming large deposits of diatomaceous
o Used for filtering (syrups, alcoholic and non alcoholic drinks, medicines, solvents, ect.)
o Used for high-temperature insulation
Radiolarians - ANSWER o Tiny single celled eukaryotes
o Produce intricate mineral skeletons
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Total Magnification - ANSWER Oculars X Objective Lens
Parts of Microscope - ANSWER o Oculars
o Objective lens
o Stage
o Stage clamp
o Iris diaphragm lever
o Light
o Body / Arm
o Coarse Focus Adj. knob
o Fine Focus Adj. knob
o Mechanical Stage Adj. Knob
Bacteria, Protist - ANSWER ______________ organization are simple, _____________ organization are
complex.
Protist, Bacteria - ANSWER ______________ have membrane-bound nuclei & organelles,
______________ have no nucleus
Bacteria, Protist - ANSWER ______________ DNA is NOT in the nucleus, ______________ DNA is found
in compact chromosomes.
Protist, Bacteria - ANSWER ______________ are typically larger in size then ______________.
Extremophiles - ANSWER _________________ are organisms that live in "extreme" environments.
, Extremophiles Examples - ANSWER o Acidophiles like acidic environments that have low pH levels.
o Alkaliphiles like alkaline environments that have a high pH levels.
o Anaerobic thrive in areas without oxygen.
Coccis - ANSWER ___________ are round bacteria
Bacillis - ANSWER ___________ are rod shaped
Spirillums - ANSWER ____________are spiral shaped
Euglena - ANSWER o Small single cell body organisms
o Sort of a combination of plants and animals
o They make their own food, but can eat other things like animals
o Live in water
o Slimy & resemblance of algae
Paramecium - ANSWER o Small single cell organisms
o Have jelly like fluid called protoplasm inside them
o Their food and other materials float in the protoplasm
o Live in lakes, ponds, streams, rivers, puddles, moist soil, or the body of animals
o Tiny hair-like things called cilia around the outside of their cell
Diatoms - ANSWER o Heavy silica celled walls
o Dead cells sink to the ocean floor forming large deposits of diatomaceous
o Used for filtering (syrups, alcoholic and non alcoholic drinks, medicines, solvents, ect.)
o Used for high-temperature insulation
Radiolarians - ANSWER o Tiny single celled eukaryotes
o Produce intricate mineral skeletons
