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A&P prac quiz chap3

a&p practice quiz chapter 3

QuestionAnswer
The numerous short hair-like projections that move things across the surface of cells are Cilia
For facilitated diffusion to occur it requires A gardient and transport mechanism
A solution which contains a high concentration of salts relative to the cytosol of a cell is a(n) Hypertonic solution
Diffusion is dependent on a gardient, the size of the molecule and random molecule movement
A toxin targets the enzymes active in the formation of ATP. Which of the following membrane mechanisms would be limited due to the lack of ATP? Active Transport
Mitosis is division of the _______ and forms _____ cells after cytokinesis nucleus; 2
One key difference between mitosis and meiosis is that mitosis forms _____ cells while meiosis forms ______ cells. diploid; haploid
During what phase of mitosis do the chromosomes form a line along the equator of the cell? Metaphase
During what phase of mitosis does the nuclear envelope disappear and the chromosomes condense? Prophase
The paired chromosomes separate and migrate towards the poles of a cell during Anaphase
The _______ are the folds of the mitochondria that form the matrix cristae
The _________ is the organelle which is sometimes referred to as the powerhouse of the cell due to the fact that it produces ATP most efficiently mitochondria
The ________ is the organelle active in most of the lipid and carbohydrate synthesis within the cell. smooth endoplasmic reticulum
The __________ acts as the cell's "post office" by sorting, processing, and packaging materials to be transported within the cell or excreted Golgi complex
_________ contain digestive enzymes and are used to clean up the cell, digest bacteria that have entered the cell, or breakdown worn-out organelles Lysosomes
The structure that controls the movement of materials into and out of cells is the plasma membrane
The cellular structure that is composed mostly of a lipid bilayer with imbedded proteins is the plasma membrane
The network of membranes that provide channels for the movement of materials throughout the cytoplasm is the endoplasmic reticulum
The _________ are sites of protein synthesis within cells ribosomes
Materials are packaged in vesicles for transport by the golgi complex
If a 5% glucose solution (A) is separated from a 10% glucose solution (B) by a semipermeable membrane, glucose will diffuse from ____ to ____, and water will diffuse from ____ to ____. B to A; A to B
If a blood cell is immersed in a solution that causes fluid to diffuse from the cell, the solution is a/an _________ solution hypertonic
Substances can enter a cell either with or against the concentration gradient by __________ transport, which is powered by ________. active; ATP
Cellular respiration requires ________ to break down organic nutrients to release energy, which is captured in high energy ________ bonds oxygen; phosphate
________ cellular respiration occurs in _________ and produces most of the ATP formed by cellular respiration. Aerobic; mitochondria
The genetic code of ________ is formed by the sequence of organic ________ in its nucleotides. DNA; bases
In __________, the sequence of bases in DNA determines the sequence of bases in mRNA, and the process occurs in the __________. transcription; nucleus
Mitotic cell division produces _____ daughter cells with ________ chromosome content as the parent cell. two; identical
In mitotic division, replication of chromosomes occurs during interphase.
In mitotic division, the division of the parent cell occurs by ________ during ________. cytokinesis; telophase
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