Edition FINAL EXAM QUESTIONS WITH
CORRECT SOLUTIONS||UPDATED
2025||100% GUARANTEED
PASS||ALREADY GRADED ||<<UPDATED
SYLLABUS>>
1) Which of the following is true of a lysosome?
A) The lysosome may function in glycosylation.
B) The lysosome functions in export packaging.
C) The lysosome may mature from a late endosome.
D) The contents of the lysosome originate in the smooth ER.
E) all of the above - ANSWER✔c
(lysosomes mature from a late endosome, see kapitel 12, figure 12.1)
2) Which organelle has only a single membrane around it?
A) ribosome
B) nucleus
C) chloroplast
D) peroxisome
E) mitochondrion - ANSWER✔d
(peroxisome: all others are surroundet by a double membrane, except ribosome
which has none)
3) Prokaryotes have __S ribosomes with __S and __S subunits, whereas
eukaryotes have __S ribosomes with __S and __S subunits.
A) 100, 60, 50; 90, 60, 40
B) 80, 50, 30; 100, 60, 40
, C) 70, 50, 30; 80, 60, 40
D) 70, 40, 30; 80, 50, 30
E) 80, 60, 40; 70, 50, 30 - ANSWER✔c
(S = sedimentation coefficient)
4) The major structural elements of the cytoskeleton are
A) the extracellular matrix and the cell wall.
B) cleavage furrows and G-actin.
C) microtubules, microfilaments, and intermediate filaments.
D) proteoglycans and cellulose microfibrils.
E) the cytoplasm and cytosol. - ANSWER✔c
(microtubules, microfilaments and intermediate filaments)
5) Communication between animal cells is facilitated by
A) tight junctions.
B) adhesive junctions.
C) plasmodesmata.
D) gap junctions.
E) both choices B and C - ANSWER✔d
(gap junctions, gap = lucka)
(plasmodesma in plant cells)
(tight and adhesive junctions for linking cells, no communication)
6) Which of the following is not believed to be a virus or to be caused by a virus?
A) scrapie
B) AIDS
C) TMV
D) Epstein-Barr
E) T 4 phage - ANSWER✔a
(BSE by sheep and goats)
7) The hallmark feature of peroxisomal diseases is the presence of