BIO LAB EXAM QUESTIONS WITH COMPLETE SOLUTIONS

BIO LAB EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
Facilitated diffusion - ANSWER-- large molecules, charged, polar
ex. glucose, ion (Na+ and Ca+), H2O
- require protein transporter
- no energy required
- passive - with concentration gradient

Active Transport - ANSWER-- moves against concentration gradient
- low to high
- requires energy ATP

pH and hot temperature - ANSWER-- denatures (changes shape) of membrane proteins
- pH is the concentration of hydronium ions relative to pure water, which is neutral (7)
- human blood is 7.4

Beet experiment - ANSWER-- more pigment released = high damage. Low percent
transmittance

- less pigment released (lighter) = low damage. High percent transmittance
types of scientific literature - ANSWER-Primary, secondary, popular, grey, blogs

primary and secondary literature - ANSWER-Primary
- novel and original data
- methods section
- investigation, experiment, test, model, discovery, simulation
- refer to results/data

Secondary
- using published data
- "review articles"
- usually lack methods/results section
- analysis (meta-analysis), synthesis, theory

Popular vs grey vs blogs - ANSWER-popular
- not peer reviewed
- newspapers, magazines
- not cited in reports

Grey
- governmental

Blogs