a&p practice quiz chapter 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| The numerous short hair-like projections that move things across the surface of cells are | Cilia
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| For facilitated diffusion to occur it requires | A gardient and transport mechanism
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| A solution which contains a high concentration of salts relative to the cytosol of a cell is a(n) | Hypertonic solution
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| Diffusion is dependent on | a gardient, the size of the molecule and random molecule movement
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| 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
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| Mitosis is division of the _______ and forms _____ cells after cytokinesis | nucleus; 2
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| One key difference between mitosis and meiosis is that mitosis forms _____ cells while meiosis forms ______ cells. | diploid; haploid
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| During what phase of mitosis do the chromosomes form a line along the equator of the cell? | Metaphase
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| During what phase of mitosis does the nuclear envelope disappear and the chromosomes condense? | Prophase
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| The paired chromosomes separate and migrate towards the poles of a cell during | Anaphase
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| The _______ are the folds of the mitochondria that form the matrix | cristae
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| 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
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| The ________ is the organelle active in most of the lipid and carbohydrate synthesis within the cell. | smooth endoplasmic reticulum
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| The __________ acts as the cell's "post office" by sorting, processing, and packaging materials to be transported within the cell or excreted | Golgi complex
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| _________ contain digestive enzymes and are used to clean up the cell, digest bacteria that have entered the cell, or breakdown worn-out organelles | Lysosomes
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| The structure that controls the movement of materials into and out of cells is the | plasma membrane
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| The cellular structure that is composed mostly of a lipid bilayer with imbedded proteins is the | plasma membrane
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| The network of membranes that provide channels for the movement of materials throughout the cytoplasm is the | endoplasmic reticulum
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| The _________ are sites of protein synthesis within cells | ribosomes
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| Materials are packaged in vesicles for transport by the | golgi complex
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| 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
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| If a blood cell is immersed in a solution that causes fluid to diffuse from the cell, the solution is a/an _________ solution | hypertonic
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| Substances can enter a cell either with or against the concentration gradient by __________ transport, which is powered by ________. | active; ATP
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| Cellular respiration requires ________ to break down organic nutrients to release energy, which is captured in high energy ________ bonds | oxygen; phosphate
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| ________ cellular respiration occurs in _________ and produces most of the ATP formed by cellular respiration. | Aerobic; mitochondria
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| The genetic code of ________ is formed by the sequence of organic ________ in its nucleotides. | DNA; bases
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| In __________, the sequence of bases in DNA determines the sequence of bases in mRNA, and the process occurs in the __________. | transcription; nucleus
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| Mitotic cell division produces _____ daughter cells with ________ chromosome content as the parent cell. | two; identical
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| In mitotic division, replication of chromosomes occurs during | interphase.
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| In mitotic division, the division of the parent cell occurs by ________ during ________. | cytokinesis; telophase
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