Can pass through the plasma membrane

a. peptide

b. steroid

What does mono mean in biology

A person touches a hot surface with his hand and his hand springs back. Which two systems are operating?

What is dna used for in eukaryotic cells?

If an original cell has the genetic makeup AaSs. What would the genetic makeup of the daughter cells be?

Epidermal cells contain few, if any chloroplasts. How does this affect the amount of light reaching the mesophyll?

12. How can water move from one tracheid into a neighboring cell? 3. How can materials move from one sieve tube element into the next?

Why is oxygen important for all body cells? A) It is involved in sugar production B) It reduces the amount of urea in blood. C) It increases the formation of lactic acid. D) It is involved in energy producing cycles.

Which is the largest artery in the body?

Why will antibotics work against bacteria but not viruses

A 10-year-old boy has an unknown infection and will need to provide a urine specimen for culture and sensitivity. To assure that the sensitivity results are accurate, which step is most important? a.