Best Grades | Must Pass | Latest Update | Correct Answers | 2026/ 2027
Bio 348 Exam 1 Ultimate Study Guide
Questions and Correct Answers | Latest
Update
Ribosomes
Makes proteins
Integral proteins
Channeling/Transporting molecules across membrane
Peripheral Proteins
Temporary involved in cell signaling. ION CHANNELS
Passive transport
Movement of solute along concentration gradient; no ATP required.
Active transport
Movement of solute against its concentration gradient; ATP required!!
Osmosis
~1~
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Diffusion of water from area of high concentration to low concentration.
Does not require transport protein.
Simple Diffusion
fat-soluble molecules directly through the phospholipid bilayer
Facilitated diffusion
Movement of specific molecules across cell membranes through protein
channels
Boundary organ
An organ where one surfaces faces outside the body and the other
surfaces face inside the body
Boundary organs
Respiratory system, Urinary System, Digestive System, Reproductive
system,
Receptor (feedback loop)
Senses change in body
~1~
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Control Center (feedback Loop)
Assesses information and determines the next action
Effector (feedback loop)
the cell or organ that carries out the final corrective action
If this an example of positive or negative feedback? The uterine contracting during childbirth,
releasing hormones to cause even more contraction
Positive feedback
If this an example of positive or negative feedback? When a wound causes bleeding your
blood clots, and platelets cling to the injury site, and release chemicals to attract even more
platelets
Positive feedback
Examples of negative feeback
Homeostasis of blood pressure, Sweating, Shivering
extracellular fluid compartments
~1~
Bio 348 Exam 1 Ultimate Study Guide
Questions and Correct Answers | Latest
Update
Ribosomes
Makes proteins
Integral proteins
Channeling/Transporting molecules across membrane
Peripheral Proteins
Temporary involved in cell signaling. ION CHANNELS
Passive transport
Movement of solute along concentration gradient; no ATP required.
Active transport
Movement of solute against its concentration gradient; ATP required!!
Osmosis
~1~
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Diffusion of water from area of high concentration to low concentration.
Does not require transport protein.
Simple Diffusion
fat-soluble molecules directly through the phospholipid bilayer
Facilitated diffusion
Movement of specific molecules across cell membranes through protein
channels
Boundary organ
An organ where one surfaces faces outside the body and the other
surfaces face inside the body
Boundary organs
Respiratory system, Urinary System, Digestive System, Reproductive
system,
Receptor (feedback loop)
Senses change in body
~1~
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
Control Center (feedback Loop)
Assesses information and determines the next action
Effector (feedback loop)
the cell or organ that carries out the final corrective action
If this an example of positive or negative feedback? The uterine contracting during childbirth,
releasing hormones to cause even more contraction
Positive feedback
If this an example of positive or negative feedback? When a wound causes bleeding your
blood clots, and platelets cling to the injury site, and release chemicals to attract even more
platelets
Positive feedback
Examples of negative feeback
Homeostasis of blood pressure, Sweating, Shivering
extracellular fluid compartments
~1~
