Biology I
Biology II
Biology III
Biology IV
Biology V
100
This structure, made of microtubules, helps direct chromosome movement during cell division:
What are CENTRIOLES
100
This is the nickname for the plasma membrane:
What is the FLUID MOSAIC MODEL
100
Name one of two eukaryotic organelles known to contain its own separate DNA:
What is: 1. Mitochondria 2. Chloroplasts
100
The nature of the cell membrane is that it permits some things to pass through, and others not. This means the cell membrane is:
What is SEMI, OR SELECTIVELY PERMEABLE
100
After phospholipids, this is the next most abundant molecule in cell membranes:
What are PROTEINS
200
This is the primary molecule that makes up the cell membrane, as well as the arrangement that it uses to do so:
What is a PHOSPHOLIPID BI-LAYER
200
This structure, made of microtubules, allows certain cells to move - such as the tails of sperm cells:
What are FLAGELLA
200
This passive transport mechanism moves water down its concentration gradient:
What is OSMOSIS
200
This organelle is NOT membrane bound, is found in prokaryotes, and helps assemble proteins:
What are RIBOSOMES
200
Endoplasmic reticulum that lacks ribosomes:
What is SMOOTH ER
300
Humans receive all their mitochondria from this parent - and EXPLAIN WHY:
What is Mom -- because Dad's mitochondria are packed in the sperm's flagella -- which does not enter the egg.
300
This portion of the phospholipid PREFERS TO BE IN WATER:
What is the HYDROPHILIC HEAD REGION
300
This structure, made of microtubules, resemble tiny hairs and usually surround cells to give them movement - as with the paramecium:
What are CILIA
300
This type of cell transport DOES NOT REQUIRE ENERGY:
What is PASSIVE TRANSPORT
300
This acts as a strong supporting layer that surrounds the outside of the cell membrane in plant cells:
What is the CELL WALL
400
This is also known as the powerhouse of cells, because the energy of cells is processed into a usable form here:
What is the MITOCHONDRIA
400
This is known as the SOLAR POWER PLANT of certain cells, because the sun's energy is processed into a usable form within this organelle:
What is the CHLOROPLAST
400
This type of passive transport moves solutes down the concentration gradient WITH THE AID OF ANOTHER MOLECULE:
What is FACILITATED DIFFUSION
400
This organelle is known as the MEMBRANE FACTORY OF THE CELL:
What is the ROUGH ER
400
This portion of a phospholipid does NOT PREFER WATER:
What is the HYDROPHOBIC TAIL REGION
500
This organelle is known as the "post office" of the cell, because products are packaged here for export:
What is the GOLGI APPARATUS
500
This eukaryotic organelle is studded with ribosomes:
What is ROUGH ER
500
This theory explains how some cells contain organelles whose DNA is separate from the nuclear DNA of that cell:
What is the THEORY OF ENDOSYMBIOSIS
500
Choroplasts get their color from this pigment:
What is CHLOROPHYLL
500
This eukaryotic organelle is where lipids are produced and where toxins are filtered:
What is SMOOTH ER
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