Pcb 4023 - Study guides, Class notes & Summaries
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PCB 4023 exam 1 Questions With Complete Solutions
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PCB 4023 exam 1 Questions With Complete Solutions
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PCB 4023 UPDATED Exam Questions and CORRECT Answers
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A cell can differently respond to different extracellular signals, but the responses occur 
withinfairly similar time ranges, i.e., in a few minutes. 
(a) True 
(b) False(b) False 
Imagine that you have added the ER retention (KDEL) signal to the C-terminus of 
acytoplasmic protein. If the gene was expressed in a cell, predict the final location in which 
your protein will localize. 
(a) Mitochondria 
(b) ER 
(c) Cytoplasm 
(d) Nucleus(c) Cytoplas
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PCB 4023 CERTIFICATION Exam Questions and CORRECT Answers
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Regarding acids, bases, and pH, which of these statements is true? 
a. Substances that release protons when they dissolve in water are termed acids and result in a 
pH lower than 7. 
b. Substances that release protons when they dissolve in water are termed bases and result in 
a pH lower than 7. 
c. Substances that release protons when they dissolve in water are termed acids and result in a 
pH higher than 7. 
d. Substances that release protons when they dissolve in water are termed bases and...
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PCB 4023 Key PASSED Exam Questions and CORRECT Answers
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Which of these is NOT a postulate of cell theory? 
a. All cells come from previous cell 
b. Cells are the smallest unit of life 
c. All cells have a nucleus 
d. All living organisms are composed of at least one cellc
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PCB 4023 TOP Exam Questions and CORRECT Answers
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(Q003) Which of the following is the main point of control for regulating gene expression 
levels?transcription 
(Q007) If lactose and glucose are both available to a bacterial cell, which carbon source(s) 
will be used?glucose 
(Q005) Excess amounts of the amino acid tryptophan result in downregulation of the 
expression of the enzymes required for its synthesis due tothe repressor binding to the 
operator.
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PCB 4023 Exam 1 Quizzes
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PCB 4023 Exam 1 Quizzes
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PCB 4023 Exam 1 Quizzes.
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PCB 4023 Exam 1 Quizzes.
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PCB 4023L Final Study Guide
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Which are the different types of tissue that exist? Correct Answer: 1.Epithelia 
2.Connective 
3.Muscle 
4. Nervous Tissue 
 
Microvilli is found on what cells? Correct Answer: Epithelia 
 
Types of Epithelia Correct Answer: 1. Simple squamous 
2.Simple cuboidal/cubical 
3.Simple columnar 
4.Pseudostratified columnar 
5.Stratified squamous 
6.Stratified cuboidal 
7.Transitional 
8.Specialized epithelia-Goblet cells 
 
Where are connective tissue cells located? Correct Answer: ECM 
 
What are...
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PCB 4023 Exam 1 Quizzes
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Which of the following structures is the smallest? 
A. chloroplast 
B. lipid bilayer 
C. mitochondrion 
D. DNA molecule 
D. DNA molecule 
 
 
 
Which of the following is NOT evidence that cells are highly complex and organized? 
A. Organelles have a very distinct shape and location 
B. Each type of organelle has a consistent composition of macromolecules 
C. Many of the most basic processes within a cell are distinct in all organisms 
D. DNA duplication occurs with a very small error rate 
C. Ma...
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PCB 4023L Final Study Guide 2023
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PCB 4023L Final Study Guide
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