Peptides and proteins - Study guides, Class notes & Summaries

MICR221 EXAMINATION QUESTIONS WITH ALL CORRECT ANSWERS AB toxins - Answer-A has toxic enzymatic activity and B binds to receptors on host cells so A can be internalised by endocytosis botulinum toxin - Answer-blocks release of acteylcholine from stimulatory motor neurons so no muscle contraction and flaccid paralysis tetanus toxin - Answer-blocks release of glycine (stops acetylcholine release) from inhibitory interneurons stimulating muscle contraction (uncontrolled) how botulinum an...

Eukaryote - ACCURATE ANSWERS An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin - ACCURATE ANSWERS This shows as pale areas in the nucleas under electro magnification. It is a less densly packed form of ...

Key part of peptide / protein biosynthesis Correct Answer increase in gene expression of the cellular genes that encode for these proteins (hormones) Proteins & peptides might be ______ and/or ______ to generate their full biological activity Correct Answer glycosylated ; dimerized Proteins & peptides are (hydrophobic or hydrophilic)? Correct Answer hydrophilic - therefore can be stored in vesicles & won't diffuse through lipid membrane. Are peptides / proteins stored in vesicles or se...

This chapter summary was written using the textbook Lehninger Principles of Biochemistry, 4th edition. The text was used as supplemental knowledge for a Biochemistry course. This note reviews amino acids, including their structure and function, and how they become peptides or proteins.

Which of the following is not a secondary lymphoid organ? A. Spleen B. Thymus C. Lymph nodes D. Liver E. Tonsils - ACCURATE ANSWERThymus Primary lymphatic organs are where lymphocytes are formed and mature. Stem cells to divide and mature into B- and T- cells: There are two primary lymphatic organs: the red bone marrow and the thymus gland. Which of the following is not a component of the reticuloendothelial cell system? A. Microglial cells B. Kupffer cells C. Langerhans cells D...

Steroid and thyroid hormones bind to target cells' _____________________ receptors - ️️intracellular... because they are lipophilic/hydrophobic and easily penetrate the lipid membrane of target cell Once formed, (steroids/peptides) immediately diffuse through plasma membrane to reach blood - ️️steroids (Steroids/Peptides) dissolve in blood - ️️Peptides, steroids cannot since they are hydrophobic Only the (bound/unbound) hormones are active and capable of binding with target...

Micro Chapter 17 Review Textbook Questions - UTA 2460 Dr. Parks Already Passed Which of the following best describes the innate nonspecific immune system? a. a targeted and highly specific response to a single pathogen or molecule b. a generalized and nonspecific set of defenses against a class or group of pathogens c. a set of barrier mechanisms that adapts to specific pathogens after repeated exposure d. the production of antibody molecules against pathogens b. a generalized and non...

QUIZ QUESTION: In an example of inflammation-mediated antibody damage to cells, Ig binds to self antigen on epithelial cells → complement binds Ig and is activated → pro inflammatory fragments of complement proteins are produced → the fragments bind to vessel walls → neutrophils move out of vessels → neutrophils bind to ____________ via receptors → neutrophils are triggered to release granules that damage cells. 1. complement proteins 2. Ig Fc portion 3. infected cells 4. sel...

NUSC 1165 Exam 1 Latest 2024 With Verified Questions And Answers (GRADED A+) Which organ is the main site of digestion and absorption? - ANSWER-small intestine Which type of digestive enzymes break down fats? Proteins? Carbohydrates? - ANSWER-Lipase- fats Pepsin- protein Amylase- carbs What is the function of bicarbonate in our gastrointestinal tract? - ANSWER-neutralizes stomach acid upon arrival to intestine What stimulates gastrin release? - ANSWER-stomach peptides/amino aci...

Eukaryote : An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin : This shows as pale areas in the nucleas under electro magnification. It is a less densly packed form of chromatin; 10% is even l...