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Welcome to Dr. Stephens’ Cellular Fun

Jeopardy

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CellularEndomembrane

systems

Mitochondria, Chloroplasts, Etc. OH MY!

A Potpourri &Hodgepodge

Of CELLS!!

Let it in…Kick it Out!!

Membranes

Planes, trains and Automobiles of cell

membranes

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Part of the endomembrane system that has ribosomes attached

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What is the Rough E.R.

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Cells which lack a nuclear membrane and organelles.

These are found only in Domains Archaea and

Prokarya

What is a Prokaryote

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Cells that have a definite membrane-bound nucleus and organelles. Found in the following kingdoms: Plantae,

Animalia, Protista, & Fungae.

What is a Eukaryote (eukaryotic)

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Surrounded by a tonoplast, this organelle is found in mature plant cells

and stores organic compounds and inorganic ions for the cell

What is a Central Vacuole

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Membrane enclosed sacs of hydrolytic enzymes used by

animal cells to digest macromolecules; acidic

environment found within these structures

What are Lysosomes

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The process by which some molecules are allowed to enter a cell

while others are not.

What is selective permeability

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These are the functions (name 2) of the smooth E.R.

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What is lipid production, carbohydrate metabolism, drug detoxification and

calcium release

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Vesicles that bud from the E.R. join the cis face of this organelle; this

organelle helps to process and package them where the vesicles are then “pinched” off of the trans face.

What is Golgi apparatus

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In eukaryotes, this organelle makes rRNA and adds it to proteins to make ribosomal subunits, which are passed

out of the nucleus to aid in protein formation.

What is NucleolusContinue

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Prokaryotes do not have nuclei, but they have “this region” where DNA is

concentrated

What is the nucleoid

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The cellular structure that is involved in producing ATP during aerobic

respiration

What is Mitochondria

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This organelle contains enzymes that break down fatty acids for energy or

detoxify alcohol and poisons; converts H2O2 to water

What is a peroxisome

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This is an example of a type of plastid (and this plastid’s function)

What is (e.g.) a chloroplast (contains chlorophyll to help function in

photosynthesis Continue

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All cells have “these” 4 things in common

What is a)plasma membrane, b)ribosomes, c)genetic material, d) cytosol, etc.

Continue

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Within the mitochondria’s phospholipid bilayer is a mitochondrial

matrix (where respiratory enzymes help in respiration). This matrix is surrounded by these large surface area folds on the inner membrane

What are CristaeContinue

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Mitochondria and chloroplasts contain a small amount of this nucleic acid

(that directs sythesis of some of their proteins)

What is DNA

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This organelle is not part of the endomembrane system and can grow

larger and increase in number by splitting in two when they reach a

certain size

What is a Peroxisome

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Within a chloroplast’s double membrane is

a)“this fluid”, b)“these flattened sacs” and c) “many flattened sacs

stacked together”

What is stroma, thylakoid and grana

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This endomembrane organelle can be confused with H2O2 decomposers, but this organelle fuses with and digests food vacuoles and aids in autophagy

What is Lysosome

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Roots and tubers store this colorless plastid (that stores starch)

What are Amyloplasts

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These are the anchors that hold the cilia and flagella in place

What are basal bodies

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This is a lab tool used in the cell fractionation process where denser

substances are separated from smaller, less dense substances in a

“fast spinning” process

What is a centrifuge

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An endocytosis process where a cell takes in fluid-like material (in an invagination process with the cell

membrane)

What is pinocytosis

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These are the organelles that are primarily involved in ion storage

What are vacuoles

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What organelle is expected to be found in abundance in the arm

muscles of an Olympic weight lifter

What are mitochondria

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These pump excess water out of the cell, thereby maintaining the

appropriate concentration of salts and other molecules.

What is a contractile vacuole

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These are two sites of protein synthesis within a cell

What are cytoplasm, mitochondria, and/or E.R.

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Chloroplasts and mitochondria contain prokaryote-like ribosomes, so they are

thought to have evolved from “this Kingdom”.

What is Monera (the bacteria)

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This is the primary difference when comparing mitochondrial and

chloroplast membranes

Mitochodria is a bilayer…chloroplast is a “trilayer” (2 outer membranes and thylakoid “membranous system”).

Continue

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Cilia and flagella move due to their interaction of the cytoskeleton with

these types of proteins

What are Motor Proteins

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This is the name of the currently accepted model describing cellular

membranes

What is the Fluid Mosaic Model

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In 2003, this award was rewarded to Agre and MacKinnon who worked on ion and water transport across the

plasma membrane

What is the Nobel Prize in Chemistry

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Getting hungry yet? This membrane model inferred that all membranes

were treated equal and that hydrophilic proteins coated both sides

of the membrane.

What is the DAVSON-DANIELLI sandwich model

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This “steroid” is a temperature buffer for membranes, as it makes

membranes less fluid by restraining movement of phospholipids but it also

lowers the membrane solidification temperature.

What is cholesterolContinue

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This “very cool” word describes molecules that have both hydrophilic and hydrophobic regions (and thus

lend themselves to make great membranes!)

What is “amphipathic”Continue

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In order for membranes to work properly, they must have the

approximate consistency of “this” (give a food example)

What is salad oil

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Glycoproteins and glycolipids are short-branched segments of “these” that are covalently bonded to lipids

and proteins and play a functional part in the membrane.

What are carbohydrates

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This general class of proteins spans the membrane bilayer where the

hydrophobic, nonpolar amino acids are near the hydrophobic tails…and the hydrophilic portions are found on the outside and inside of the membrane

What are integral proteins

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“These proteins” serve the function of catalyst of chemical reactions, as their

active site is exposed to certain substances

What is an enzymatic protein

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Membrane proteins of adjacent cells help to hook the cells together …an

example of these junctions are ________________

What is gap or tight junctions

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The tendency for molecules of any substance to spread out evenly into

the available space

What is diffusion

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Hydrophilic substances that need to get into and out of the cell do not do well going through the hydrophobic

part of the membrane. So they might pass through these hydrophilic

channels

What are Transport Proteins

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A type of transport protein that allows specifically for the passage of water

What are Aquaporins

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A membrane transport process where energy is not required to move

something

What is Passive Transport

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Substances diffuse down their _____________________________, which is diffusing from an area of high to low

concentrations

What is a Concentration Gradient

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If I transfer my animal cell to this type of solution (related to solute

concentration) , the cell will likely shrivel up

What is hypertonic

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Paramecium are examples of organisms that have a special

adaption called “this” that allows them to control water uptake and exit

What is osmoregulation

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This wilting, and sometimes lethal action occurs to plant cells with walls (and some other types of cells) when

submerged into a hypertonic environment

What is plasmolysis

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A generic term referring to a molecule that binds specifically to a receptor

site of another molecule

What are ligands

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A transport protein that generates voltage across a membrane.

What is an electrogenic pump

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