Open Ended Flashcards
How do trees get water from their roots to the leaves?
Capillary action helps bring water up to the roots through the stems, cohesion - attraction between same kinds of molecules - and adhesion - attraction between different molecules- work together to distribute water to the leaves
Difference between saturated and unsaturated fats?
Saturated fats contain no double bonds
Saturated fats are solid at room temperature because of the tightly packed molecules
Unsaturated fats contain at least one double bond
Unsaturated fats are liquid at room temperature because the molecules are not tightly packed and have a lower melting point
Difference between Dehydrolysis and Hydrolysis
In a dehydrolysis reaction molecules lose H and OH atoms
In a hydrolysis reaction molecules gain H and OH atoms
Hydrolysis adds water, while dehydrolysis removes it
What are the 6 characteristics of life?
Cells/ organization
Growth
Reproduction
Homeostasis/Adaptation
Response to stimulation
Energy/Metabolism
*THINK OF EXAMPLES FOR EACH JUST IN CASE *
Ex.) An example of response to stimuli could be putting on a jacket when you’re cold, or a prey running away from a predator
How and why does Ice float?
Hydrogen bonds allow molecules to be spaced farther apart, this ultimately lowers the density, thus making it float
Floating ice helps to preserve underwater life and gives animals like polar bears a foundation
Describe what happens when blood ph drops
Human blood contains buffers in order to keep the blood ph at a consistent level around 7.4. A drop in blood ph is known as acidosis. It causes nausea, vomiting, fatigue, and can lead to death if not treated
Describe what happens when blood ph increases?
An increase in blood ph is known as alkalosis. It can cause muscle weakness, twitching, hyperventilation, and can lead to a coma. Not as life threatening as acidosis
what are the 7 functional groups
Hydroxyl
Methyl
Carbonyl
Carboxyl
Amino
Phosphate
Sulfhydryl
