Pcb 4023 - Study guides, Class notes & Summaries

PCB 4023 exam 1 Questions With Complete Solutions

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

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...

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

(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.

PCB 4023 Exam 1 Quizzes

PCB 4023 Exam 1 Quizzes.

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...

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...

PCB 4023L Final Study Guide