Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Mrs. Long's Science1

An Exam study guide for 1st nine weeks

QuestionAnswer
What is the basic metric unit for mass? Length? Mass- Gram, Length- Meter
What instrument is used to measure the mass of an object? a beam balance
How is the volume of an irregular shaped object measured? water displacement method
Define Scientific Method A method of investigation involving observation and theory to test scientific hypothesis
Define Hypothesis a possible set of explanation for a set of observations or answer to a scientific question.
Define Prediction a forecast of what will happen based on past experience of evidence
What is technology and it's purpose? Technology is how people change the world around them to meet their needs and solve practical problems
Define classification the process of grouping things based on their similarities
Why do scientists make models? to create representations of complex objects or processes
What are some life science careers? biologist, botanist, zoologist, doctor, marine biologist
Define taxonomy the scientific study of how things are classified
What does the scientific name consist of? genus and species
How are the numbers of classification levels that an organism shares related to the characteristics of the organisms? the more classification levels that two organisms share, the more characteristics they have in common
What did Redi and Pasteur's experiments prove? That spontaneous generation is false
What is homeostasis? the maintenance of stable internal conditions
Give one example of a stimulus and a response. The light a plant grows toward, plant growing toward the light.
The invention of the _____________ made it possible for people to discover and learn about cells. microscope
Where do autotrophs get their energy? Heterotrophs? autotrophs- make their own energy heterotrophs- get energy from animals and the sun.
What happens during photosynthesis? plants and other organisms use energy from the sun to convert carbon dioxide and water into oxygen and glucose
What is produced during photosynthesis? glucose and oxygen
what happens during respiration? cells break down simple fod molecules such as sugar and release the energy they contain
how are photosynthesis and respiration related? together they form a cycle that keeps the levels of oxygen and carbon dioxide fairly constant in the earth's atmosphere they are also opposite equations
photosynthesis is helpful to heterotrophs because... ... we eat plants, and without photosynthesis, plants wouldn't live
what stage of respiration releases the most energy? stage 2
___________ captures energy from sunlight in photosynthesis chlorphyll - pigments
Lactic acid fermentation usually occurs ... in athletes when you are doing strenuous activities
What is one product of fermentation in yeast cells? alcohol
Oxygen and carbon dioxide transport inside and outside of plants through the _________ stomata
Most chemical reactions in cells require what to occur? water
for a compound to be considered organic, it must contain... carbon
The major way that a bacterial cell differs from a plant or animal cell is that it is a prokaryote (which doesn't have a nucleus)
List the three parts of the cell theory. - All living things are composed of cells - Cells are the basic units of structure and function in a living thing -All cells are produced from other cells
What is the regular cycle of growth and division that cells undergo called? cell cycle
List the order of the stages of the cell cycle. Interphase- In Prophase- Paris Metaphase - My Anaphase - Aunt Telophase- Tessie Cytokinesis- cooked
Interphase cell grows to full size, replication occurs, DNA is copied, cell prepares to divide
Metaphase chromosomes line up across the middle of the cell
Cytokinesis cytoplasm divides, and two new cells are formed they have the same number of chromosomes as parent cell
What happens during mitosis? the process where a cell divides to make new cells
___ is copied during replication DNA
Chromatids are... identical strands of chromosomes
What forms around the chromatids during mitosis? 2 new nuclei
The shape f a DNA molecule is a ... spiral staircase
Name the nitrogen bases that make up the rungs of the DNA ladder. Where are they located on the molecule? What pairing pattern occurs. adenine - thymine guanine - cytosine they are located on the rungs of the DNA ladder
why are living things organized into groups? because it makes them easier to study
Popular Biology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards