Hyphal aggregates that allow for the formation of the most complex fungal tissues, such as sclerotia and sporocarps, are held together by: (a) adhesive matrices (b) anastomoses (c) special septa (d) a, b, and c
Answer- C
Hyphal aggregates are held together by septa. Septa is the apparatus that differentiates the cellular material from one cell to another. Septa is found in all higher fungi. They usually contain pores that may allow cellular organells or even nuclei to be exchanged between cells
Hyphal aggregates that allow for the formation of the most complex fungal tissues, such as sclerotia...
Platyhelminth adhesive organs A. regulate release from the substrate B. allow adhesion via hooks C. allow tapeworms to anchor onto host tissues D. None of the above is correct
Which of the following is not involved in the formation of a eukaryotic transcription initiation complex? a. TATA box b. transcription factors c. snRNA d. promoter
Both animals and fungi are heterotrophic. What distinguishes fungal heterotrophy from animal heterotrophy is that most FUNGI derive their nutrition by ________. * a. Releasing strong acids to breakdown food outside its body, then absorbs it b. Ingesting materials c. Releasing enzymes to breakdown food outside its body, then absorbs it d. Absorbing food from hosts with its hyphae d. Absorbing food from hosts with its hyphae
All of the following are true regarding macrophages EXCEPT: A) They are found in most tissues of the body. B) Each type of macrophage recognizes and destroys only one specific type of pathogenic agent. C) Macrophages play an important role in both innate and adaptive immunity. D) Macrophages can engulf bacteria following opsonization.
10. Protein folding, in most cases, is complex and inhibited by aggregation. Which of the following is false regarding protein folding? A. Chaperones of the heat shock classes do not promote folding, but rather inhibit aggregation. B. Enzymes promote the formation of proper disulfide linkages by eliminating improper folding. C. All proteins require the input of energy and the assistance of chaperones for folding. D. Secondary structures usually form first in folding.
22) Proteins must be complex set of mol bond formation eins must bend and fold as they are synthesized with a x set of molecules assisting in this process. Disulfide formation helps to guide and stabilize this protein folding. What type of reaction is disulfide bond formation? a) oxidation-reduction b) acid-base c) isomerization d) splitting ("lysis") e) high energy bond transfer SH HS s-s Cys, free cysteines disulfide bor 23) Which of the following has a hydrophobic side chain? a)...
8) Financial markets allow for all but which one of the following? A) allow most participants to routinely earn high returns with low risk B) price securities according to their riskiness C) shift consumption through time from higher-income periods to lower D) channel funds from lenders of funds to borrowers of funds
TFIIB contributes to pre-initiation complex formation by O A. Enhancing TFIID binding to DNA. Positioning the catalytic site of RNA polymerase Il over the +1 start of transcription. ОВ. Directly interacting with TBP through its C-terminal domain. C. Both A and B are correct. D. A, B and C are all correct. E.
The nuclear pore complex (NPC) contains_____ structures that form a gel-like matrix that allow small molecules to diffuse through, but require larger proteins to enter via importin or other nuclear chaperones. a. nuclear localization signals (NLS) b. nuclear lamina c. structural nucleoporin d. FG-nucleoporin
1. Where in the circulatory system and its associated tissues is the partial pressure of O2lowest and the partial pressure of CO2highest? a. alveolar capillary bed d. body tissue surrounding systemic capillaries b. exhaled air e. pulmonary arteries and systemic veins c. pulmonary veins and systemic arteries 2. Increasing the value of which of the following stabilizes the R-state of hemoglobin and makes it harder to unload O2? a. [BPG] d. [O2] b. [CO2] e. temperature c. ...