OAT- BIOLOGY EXAM QUESTIONS WITH GUARANTEED ACCURATE ANSWERS
5 views 0 purchase
Course
OAT- BIOLOGY
Institution
OAT- BIOLOGY
OAT- BIOLOGY EXAM QUESTIONS
OAT- BIOLOGY EXAM QUESTIONS WITH GUARANTEED ACCURATE ANSWERS
Ingestion - ACCURATE ANSWERS Acquisition of food
Assimilation - ACCURATE ANSWERS Building of new tissues from digested food
Monosaccharide - ACCURATE ANSWERS single sugar subunit
- carb
Ex: gluco...
,Polysaccharide - ACCURATE ANSWERS✔✔ Polymer of sugar
subunits
-carb
- insoluble in water
- Ex: glycogen, cellulose, starch
Lipids - ACCURATE ANSWERS✔✔ 3 fatty acids bonded to glycerol
- chief means of food storage
-Major component of adipose tissue
-Steroids, waxes, carotenoids, poryphyrins
Proteins - ACCURATE ANSWERS✔✔ Polymers of amino acids joined
by peptide bonds
-Hormones (ACTH & Insulin), enzymes, structure proteins (collagen),
transport (hemoglobin), antibodies
Enzymes - ACCURATE ANSWERS✔✔ ↓ activation E and ↑ rate of rxn
- do NOT affect overall E
-↑ temp : ↑ enzyme action/ optimal pH= 7.2 (except pepsin and
pancreas)
Competitive Inhibitors (enzymes) - ACCURATE ANSWERS✔✔
Compete with substrate for binding at ACTIVE site
,- can be overcome by adding more substrate
-Vmax not affected
Noncompetitive Inhibitors (enzymes) - ACCURATE ANSWERS✔✔
bind at allosteric site
- diminishes Vmax
Eukaryotes - ACCURATE ANSWERS✔✔ Cell wall in fungi and plants
- Nucleus, and membrane bound organelles
Centrioles - ACCURATE ANSWERS✔✔ microtubules involved in
spindle organization during cell division
-NO membrane
-plants lack centrioles
Centromere - ACCURATE ANSWERS✔✔ Near middle of eukaryotic
chromosomes where spindle fibers attach
Lysosome - ACCURATE ANSWERS✔✔ Membrane bound
, -Involved in ingestion
-Hydrolytic enzymes
-has the ability to "commit suicide"
Mitochondria - ACCURATE ANSWERS✔✔ -generate energy
(oxidative phosphorylation → ATP)
-self-replicating organelles
-contain DNA in circular plasmids
Desmosomes - ACCURATE ANSWERS✔✔ "Spot welds"
-attach cells together and give cells mechanical strength
-Ex: skin
Tight junctions - ACCURATE ANSWERS✔✔ seal the spaces between
cells and prevent cell leakage
Ex: intestinal cells
Nucleus - ACCURATE ANSWERS✔✔ "information center"
-Contains chromosomes, DNA and RNA
-Separated by a double membrane nuclear envelope
Nucleolus - ACCURATE ANSWERS✔✔ Within the nucleus
-Ribosome synthesis takes place
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GRADEUNITS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.49. You're not tied to anything after your purchase.
