science Flashcards
Terms
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- has a pH of 2
- HCl
- Used to mix substances.
- stirring rod
- What is the DNA structure known as
- double helix
- Carbon Dioxide
- CO2
- Has a pH of 6
- 7-up
- An organism's role in its ecosystem
- niche
- Contains the chromosomes...
- nucleus
- Two or more atoms bonded together
- molecule
- A chromosome is a long strand of......
- genes
- A relationship between two organisms.
- Symbiosis
- 2 or more different atoms bonded together
- compound
- Oxygen
- O
- The ................was a major research project mapping all the genes of a person's chromosomes.
- Human Genome Project
- Light produced by living organisms
- bioluminescence
- thymine-
- adenine
- Euglena and sperm move with this structure.
- flagellum
- made up of only 1 kind of atom
- element
- Placed on top of a specimen to be magnified.
- cover slip
- cytosine-
- guanine
- Sucrose
- C12 H22 011
- Has a pH of 7
- saliva, milk, water, tums
- Has the function of anchoring kelp to a rock.
- holdfast
- 2 or more of the same atom bonded together
- molecule
- An atom which has lost or gained electrons so that it has a positive or negative charge.
- ion
- Has a pH of 8
- baking soda
- The number of organisms that an area can support
- carrying capacity
- The most common molecule in any cell is...
- Water
- Production site of protein.
- ribosomes
- A gene is a long strand of.....
- DNA
- Used to measure mass in grams.
- triple beam balance
- has a pH of 7, example
- saliva
- Movement of substances from a high to a low concentration.
- diffusion
- Has a pH of 4
- vinegar
- Holds substances when a sealed stopper is used.
- flask
- Has a pH of 3
- lemon
- Calcium
- Ca
- Has a pH of 12
- amonia
- Where an organism lives.
- habitat
- Number of independent variables in a well conducted experiment.
- 1
- Specimen to be magnified is placed here.
- microscope slide
- Sodium losses 1 electron
- Na+1
- Used to scoop powders from the stock container.
- chemical spatula
- Needs heat in order to occur
- Endothermic Reaction
- An organism that lives at the expense of another organism.
- parasite
- The three most common elements in the human body.
- Hydrogen, Carbon, Oxygen.
- Drying
- Dessication
- Salt
- NaCl
- The study of the interaction between organisms and their enviroment.
- Ecology
- Condition that determines how many organisms can live in an area.
- Limiting Factor
- Part of the shore that is under water during high tide and exposed during low tide.
- intertidal zone
- Study of Plants
- Botany
- Floating animals.
- zooplankton
- Scientist who determined structure of DNA.
- Watson and Crick
- Keeps specimens at a constant warm temperature.
- incubator
- A substance composed of only one kind of atom.
- element
- transports protein throughout the cell.
- rough endothermic reticulum
- Cell reproduction that creates eggs and sperm.
- meiosis
- powerhouse of the cell, food molecules are broken down to release energy.
- mitochondria
- All th reactions that occur in an organism.
- metabolism
- A body part which is smaller in size that it once was and which now has no known function.
- vestigal structure
- diffusion of water across a cell membrane.
- osmosis
- Determing the age of organisms by finding their position in sedimentary rocks.
- relative dating
- blur of electrons around the nucleus of an atom.
- electron cloud
- 8NaCl
- 8 molecules of salt, 8 atoms of sodium, 8 atoms of chlorine.
- The smallest subatomic particle.
- electron
- Used to hold hot test tubes.
- test tube tongs
- Little difference between high and low tide.
- Neap Tide
- Used to cut dissection specimens.
- scalpel
- pH of 7
- neutral
- Two scients who first stated that all living things are composed of cells.
- Schwann and Schleiden
- Combined mass of the protons and number of electrons.
- Atomic Mass
- cells that do not have an organized nucleus
- prokaryotes
- Specimen to be dissected is placed here.
- dissecting pan
- Organisms with traits that suited their enviroment best lived and passed their genes to their offspring.
- Darwin
- The most common holding container for small volumes of chemical substances.
- test tube
- Storage site for water or food
- vacuole
- The gravitational pull on an object.
- Weight
- Contains enzymes to break down old cell parts and cell waste.
- lysomes
- Remains or signs of life that once lived.
- fossils
- Used to grow bacteria on agar.
- petri dish
- what other cell does not have an organized nucleus.
- bacteria
- Used to write on glass.
- wax pencil
- The theory of evolution that states that the environment will determine which organisms will survive and pass on their traits to the next generation.
- natural selection
- Transportation system of the cell. No ribosomes.
- smoothe endothermic reticulum
- Multiple test tubes are placed in this.
- test tube rack
- The determination of age by how much atomic energy is given off.
- radioactive dating
- Used to hold flaps of material during dissection.
- tweezers
- Used to measure temperature.
- celcius thermometer
- scientist who first saw and named cells
- Robert Hooke
- Composed of genes- heredity ingormation of the cell.
- chromosomes
- The most common holding container
- beaker
- Used to lift hot beakers.
- beaker tongs
- Hypothesized that organisms inharit traits from their parents, that occured during their life.
- Lamark
- The amount of matter in an object.
- mass
- Used to measure volume.
- graduated cylinder
- These cells would not contain chloroplasts
- brain, root, and blood cells