Openstax Anatomy and Physiology Chapter 3 Questions and Correct Answers/ Latest Update / Already Graded

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Openstax Anatomy and Physiology
Chapter 3 Questions and Correct
Answers/ Latest Update / Already
Graded
Active Transport


Ans: Form of transport across the cell membrane that requires input of

cellular energy




Amphipathic


Ans: Describes a molecule that exhibits a difference in polarity between

its two ends, resulting in a difference in water solubility




Anaphase


Ans: Third stage of mitosis (and meiosis), during which sister chromatids

separate into two new nuclear regions of a dividing cell




Anticodon

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Ans: Consecutive sequence of three nucleotides on a tRNA molecule

that is complementary to a specific codon on an mRNA molecule




Autolysis


Ans: Breakdown of cells by their own enzymatic action




Autophagy


Ans: Lysosomal breakdown of a cell's own components




Cell Cycle


Ans: Life cycle of a single cell, from its birth until its division into two new

daughter cells




Cell Membrane


Ans: Membrane surrounding all animal cells, composed of a lipid bilayer

interspersed with various molecules; also known as plasma membrane

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Centriole


Ans: Small, self-replicating organelle that provides the origin for

microtubule growth and moves DNA during cell division




Centromere


Ans: Region of attachment for two sister chromatids




Centrosome


Ans: Cellular structure that organizes microtubules during cell division




Channel Protein


Ans: Membrane-spanning protein that has an inner pore which allows

the passage of one or more substances




Checkpoint