Q: Q: What causes a voltage to exist across the membrane in cells? A:

OPTIONS:
- insulators
- increase in energy
- same charge
- difference in charges

A: difference in charges

input: OPTIONS:
- glucose
- testosterone
- Cortisol
- insulin Now, answer this question: Q: What hormone does the endocrine system secrete to help cells absorb blood sugar? A:
A:
output: insulin

Q: What astronomical phenomenon is often comprised of remnants of the earliest material that formed in the solar system? A:

OPTIONS:
- asteroids
- particles
- comets
- meteorites

Answer: meteorites

Problem: OPTIONS:
- lazy proteins
- navigation proteins
- installation proteins
- transport proteins
Q: Q: The help with diffusion comes from special proteins in the membrane known as what? A:
Answer: transport proteins

Problem:OPTIONS:
- faster nuclei
- light nuclei
- active nuclei
- smaller nuclei

Q: Fission is a type of radioactivity in which large nuclei spontaneously break apart into what? A:
****
A: smaller nuclei

Problem:OPTIONS:
- one partial-life
- one full-life
- one quarter-life
- one half-life

Q: What do we call the amount of time it will take for half of the radioactive material to decay? A:
****
A:
one half-life