bio 161 psu exam 1
Study online at https://quizlet.com/_70un6p
1. homeostasis the body's ability to maintain a constant en-
vironment
2. two types of control systems in the body negative and positive feedback loops
3. negative feedback loops body senses change and reacts to negate or
reverse the condition
4. positive feedback loops self-amplifying cycles in which an initial
change leads to a greater change
5. four major categories of organic mole- carbohydrates, lipids, proteins, nucleic acids
cules
6. monomer single molecular unit of a polymer
7. polymer molecule containing many repeating single
molecules (monomers)
8. three main types of lipids triglycerides, phospholipids, steroids
9. function of phospholipids cell/organelle membranes
10. composition of phospholipids fatty acids, phosphate group, glycerol
11. function of triglyerides energy storage and insulation
12. composition of triglycerides 1 glycerol and 3 fatty acids
13. protein polymer of amino acid monomer
14. nucleic acids function hereditary (DNA) and protein syn-
thesis (RNA)
15. gene expression making proteins from our DNA
1/8
, bio 161 psu exam 1
Study online at https://quizlet.com/_70un6p
16. transcription makes a working copy of the gene (RNA)
17. translation translates nucleotides to amino acids
18. cytoplasm -fluid inside cell
-location of many cellular reactions including
some with cellular respiration
19. nucleus -location of DNA
-surrounded by nuclear membrane (lipids)
that helps regulate transport in and out
20. endoplasmic reticulum -made of lipids
-location of translation (protein synthesis)
via ribosomes
21. ribosomes organelles made of protein and RNA that
direct protein synthesis in the cytoplasm
22. Golgi bodies -stacks of membranes
-packaging proteins for transport in mem-
brane
23. vesicles small membrane sacs that specialize in mov-
ing products into, out of, and within a cell
24. mitochondria -function in ATP production (cellular respira-
tion)
-have a small piece of circular DNA
--inherited from mom
--mutations can cause diseases
25. Cytoskeleton -network of proteins in the cytoplasm
2/8
Study online at https://quizlet.com/_70un6p
1. homeostasis the body's ability to maintain a constant en-
vironment
2. two types of control systems in the body negative and positive feedback loops
3. negative feedback loops body senses change and reacts to negate or
reverse the condition
4. positive feedback loops self-amplifying cycles in which an initial
change leads to a greater change
5. four major categories of organic mole- carbohydrates, lipids, proteins, nucleic acids
cules
6. monomer single molecular unit of a polymer
7. polymer molecule containing many repeating single
molecules (monomers)
8. three main types of lipids triglycerides, phospholipids, steroids
9. function of phospholipids cell/organelle membranes
10. composition of phospholipids fatty acids, phosphate group, glycerol
11. function of triglyerides energy storage and insulation
12. composition of triglycerides 1 glycerol and 3 fatty acids
13. protein polymer of amino acid monomer
14. nucleic acids function hereditary (DNA) and protein syn-
thesis (RNA)
15. gene expression making proteins from our DNA
1/8
, bio 161 psu exam 1
Study online at https://quizlet.com/_70un6p
16. transcription makes a working copy of the gene (RNA)
17. translation translates nucleotides to amino acids
18. cytoplasm -fluid inside cell
-location of many cellular reactions including
some with cellular respiration
19. nucleus -location of DNA
-surrounded by nuclear membrane (lipids)
that helps regulate transport in and out
20. endoplasmic reticulum -made of lipids
-location of translation (protein synthesis)
via ribosomes
21. ribosomes organelles made of protein and RNA that
direct protein synthesis in the cytoplasm
22. Golgi bodies -stacks of membranes
-packaging proteins for transport in mem-
brane
23. vesicles small membrane sacs that specialize in mov-
ing products into, out of, and within a cell
24. mitochondria -function in ATP production (cellular respira-
tion)
-have a small piece of circular DNA
--inherited from mom
--mutations can cause diseases
25. Cytoskeleton -network of proteins in the cytoplasm
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