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Biology Lab Final Exam Key Concepts: Labs 1–12 Questions with 100% Verified Answers Latest Update

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Biology Lab Final Exam Key Concepts: Labs 1–12 Questions with 100% Verified Answers Latest Update

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Biology Lab Final Exam Key Concepts: Labs 1–12
Questions with 100% Verified Answers Latest Update
Question: Lab safety

Answer:

gloves, goggles, closed‑toe shoes, no food/drinks, no mouth pipetting.

Question: Graduated cylinders

Answer:

read at bottom of meniscus.

Question: Serological pipettes

Answer:

measure 1-25 mL using pipette pump.

Question: Micropipettes

Answer:

(P20, P200, P1000) measure microliters (µL).

Question: Digital balance

Answer:

must be tared before use.

Question: Metric conversions

Answer:

1 mm = 1000 µm; 1 µm = 1000 nm.

Question: Scientific notation

Answer:

one digit before decimal.

Question: Dilution formula

Answer:

C1V1 = C2V2.

Question: Solvent added

, Answer:

V2 - V1.

Question: Serial dilutions

Answer:

repeated dilutions by constant factor (e.g., 1/10 → 1/100 → 1/1000).




Question: Water

Answer:

is polar; good solvent.

Question: pH

Answer:

= -log[H+]. Lower pH = more acidic.

Question:

Answer:


Question: Buffers

Answer:

resist pH change (e.g., bicarbonate in blood).

Question: Conductivity

Answer:

requires ions.

Question: Benedict's test

Answer:

reducing sugars → green/yellow/orange/red.

Question: Iodine

Answer:

starch → blue/black.

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