Which of the following is a common energy currency in living cells that powers most living organisms?
A) Sunlight
B) Heat
C) ATP
D) Phosphate
C
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Match the following items with the correct phrases.
_______1. Organisms that prefer salty environments are called ____________________. _______2. Organisms that have especially demanding nutritional requirements are called ____________________. _______3. Organisms that prefer environments having decreased concentrations of oxygen are called ____________________. _______4. Organisms that prefer refrigerator temperature are called ____________________. _______5. Organisms that grow best in environments containing increased concentrations of carbon dioxide are called _______________. a. capnophiles b. fastidious organisms c. halophiles d. microaerophiles e. psychrotrophs
You are interested in expression of regions of the X chromosome at different times in human fetal development. You hypothesize that large regions of the X chromosomes will be expressed at times when parts of the reproductive organs are developing
What structural and chemical characteristics of the X chromosome might you look at over time to determine when expression of genes on the X chromosome is enhanced or repressed? What will be an ideal response?
What is the chemical in tobacco smoke that's able to activate the brain's reward pathways, thus making smoking a very addictive process?
What will be an ideal response?
Glycolysis is an anaerobic process used to catabolize glucose. What does it mean for this process to be anaerobic?
(a) no oxygen is required (b) no oxidation occurs (c) it takes place in the lysosome (d) glucose is broken down by the addition of electrons