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biology I

Horizontales
This mineral is essential to bone growth, and is found in dairy products and broccoli and many other foods
two atoms of hydrogen bonded with one atom of __________ is a water molecule
From the far reaches of our solar system Earth appears to be a pale blue ______.
animals store glucose in this highly branched molecule
Earth's early oceans where life arose are often described this way
the chemical symbol of 1 across (also California's abbreviation)
carbon atoms can form a chain, but if the first and last carbon in a chain connect, a _________ is formed
a flagella is like a _________ that helps a cell propel itself
A social, hard-working insect
A large, long-legged, and long-necked bird. (it's also the name of a large machine used in construction for moving heavy objects by suspending them from a projecting arm or beam)
The most important sugar in biology. Green plants make it and all cells use it as an energy source
SER + RER = ____
the _______ duckling was actually a swan
The first lifeforms to perform photosynthesis
organisms must ______ their wastes
When the bonds between carbons of a triglyceride are all single bonds, the triglyceride is a ______________ fat.
cells ____ ATP as an energy currency to run all their molecular machinery.
The Golgi apparatus packages proteins and carbohydrates into secretory ___________ .
The theory that the eating of prokaryotes by ancestral cells resulted in the formation of mitochondria and chloroplasts in the earliest eukaryotic cells
abbreviation for the element gold
the number of mitochondria in a typical bacterial cell
the offspring of a male donkey and a female horse. they are usually infertile, They are considered more patient, hardier and longer-lived than horses, and less obstinate and more intelligent than donkeys
This evolutionary milestone allowed cells to specialize and contribute the health of the organism of which they are a part
protons and neutrons have higher ________ than electrons
abbreviation for the element lead
The second lightest element
The cell is the basic ________ of life
Try this analogy, Ewe: ________:: egg:sperm
The nucleus is often called the control _______, of the cell because it controls the cells proteins synthesis
when the sperm from a male fertilizes an egg from a female, producing offspring that is genetically different from both parents
opposite of trans, for fats this means that hydrogens are on the same side of carbon=carbon double bond
A honey-making pollinator
a rib is one
Phospholipids will naturally form a __- layer with their hydrophobic tails in the center and their hydrophilic heads on the outside.
a molecule, for example a water molecule, that has an electrically positive end, and an electrically negative end.
A time when the diversity of life dramatically increased.
Slang for a fungus
The point of a microscope is to ____________ things that are too small to see with the naked eye
The _____________, nitrogen, hydrogen, oxygen, carbon, and phosphorous are abundant in life.
A very healthy oil, shown to reduce bad cholesterol
Ironically, to multiply a cell must __________.
Enzymes are very specific for their _______________ .
Verticales
Predators and prey ___-evolve., meaning as prey gain new defenses, predators evolve ways to overcome those defenses...
A cell's energy currency
The ___________Trench the deepest part of the ocean where many extremophiles live in this high pressurized, cold and dark environment
This word describes the 3D structure of proteins
A place where transfats were banned earlier than in the rest of the US
A structural plant polysaccharide consisting several hundred to many thousands glucose units. It is hard for humans to digest and so provides roughage in our diet
It is easier for a cow to __________ cellulose than for a human
A portion of DNA that provides protein-making instructions
Felis catus is its scientific name
The pizza ________ was spotted carrying a slice of pizza down a flight of subway stairs
Try this analogy, __________ :macro:: little : big
offspring of a male lion and a female tiger. it is the largest of all existing felines. They enjoy swimming, which is a characteristic of tigers, and are sociable like lions, and typically grow larger than either parent species
Eating, growing, and reproducing are some of life's ___________.
The phylogenic tree of life indicates that there ___ one common origin to the diversity of life on earth
Water-based (like inside your cells)
A part of the foot that is often emphasized in ballet
A hydrophobic molecule will __________ water.
A flying mammal
Jon the kinesin often has a large cargo to _________ on his microtubule highway
Do you ______ to live, or live to ___?
short microscopic hairlike vibrating structures found in large numbers on the surface of certain cells, either causing currents in the surrounding fluid, or, providing propulsion.
Plants capture energy from the ____ and store it in glucose molecules
Usually smaller than a bacteria. Many biologists don't consider it alive, but it sure interacts with life, even inserting its dna into our dna
A _______ cm is a unit of volume.
A protein that catalyzes chemical reactions
Try this analogy, _______: big toe:: hand:foot
The inside lining of the _____ is covered by light-sensing cells that convert light into electrical impulses, which are sent to the brain via the optic nerve.
Carl Sagan says 'we are stardust,' _______ most of the elements in our bodies were forged in supernovae (exploding stars)
A night bird of prey that hoots and seems wise
Try this analogy, _______: ankle:: hand:foot
The numbers you collect in a scientific study are your _________.
If an organism is not multi-cellular, then it is ___-cellular
12, 28, 40, 48, 62, and 76 across are about important milestones in a _______ of life's evolution
'a lifeform' is a synonym for '__organism'
The cell membrane is ______ -permeable, meaning some substances can get through it, but others cannot.
A phospholipid has a hydro-___________ tail
Atoms like to have 8 of these in their outer shell
A centrosome is made of _______ centrioles
A thousand millimeters is equal to one ___________
electrons don't literally orbit in a circular paths around the nucleus. A modern view is that there is a ___________, or a region of space where the electrons have a high probability of being found. (see pic)
Protein making machines
The only human cell with a flagella
a large tree with a rounded, multi-branched crown. It usually grows from 60 to 80 feet tall with a crown two-thirds as great.
abbreviation for the element barium
Earth is the ______ celestial body known to harbor life forms.
Different cells _________ different genes, and this explains their differences in appearance and function.
Mitochondria ___ the plural of mitochondrium; and cilia ___ the plural of cilium; and bacteria ___ the plural of bacterium.
It would be hard to ________ the ribosomes in a cell because there can be millions of them
This layer in our stratosphere didn't exist before the photosynthetic cyanobacteria started producing oxygen. Now it protects life from harmful UV rays.
Try this analogy, _______: leg :: hand:foot
cilia are like little ________.
The three broadest categories of life (according to the modern classification system shown ) are : bacteria, archaea, ______ eukarya.
The beautifully colored part of the eye (also a flower)
We get our mitochondrial DNA from our ______.
Neither archaea, ______ bacteria have membrane-bound organelles.