Save
Upgrade to remove ads
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

Biology key terms

QuestionAnswer
Organism All living things
Biogenesis All livings things are produced by another living thing
Biosphere All the places on the earth that support living things
Biodiversity The variety of living things in an area
Continuity of life Living things of the same type reproduce over generations
Characters of life: 1) cellular basis All living things are made up of cells
Biomolecules The chemicals used by organisms
Unicellular Single-cell organisms. Eg: yeast, bacteria
Multicellular A complex organism made of many cells. Eg: humans, animals
2) organisation Levels in multicellular organisms to help them function properly.
Type of level Cell-tissue-organ-organ system-organism
3) Reproduction The ability of an organisms to produce same type of individual
Sexual reproduction Produced by fusing sex cells from two parents. Eg: humans, animals
Asexual Produced by only one parent without sex cells.Eg: strawberry plants
4) Heredity The passing of characteristics from one generation to the next
Gene Unit of heredity. Controls the passing of characteristic from one generation to the next
5) Nutrition How organisms use and get food
Autotroph Organisms that can make its own food
Photosynthesis The way plants and some other organisms make their food using sunlight energy
Heterotroph Organisms that cannot make their own food so they must find and take in food
Matter The cycle through organisms as it makes and takes in food
Energy Flows from the sun to plants
6) metabolism The chemical reactions that take place in an organisms
7) Respiration The release of energy from food so organisms can do work
8) Excretion The removal of waste products of metabolism from cells
9)Homeostasis All the ways an organisms can maintain the best internal conditions for metabolism
10) Response Ways organisms react to internal and external changes in their environment
Stimulus The changes in an organisms environment
Receptor Structure that senses the changes in the organisms environment
Growth The increase in size of an organism
Microscope Used to magnify specimens (cells)
Parts: Eye Piece Used to see/ magnify the image
Nosepiece Holds and positions objective lenses
Objective lens Used to magnify specimen by different powers (x4,x10x40)
Stage Used to hold the slide
Stage height adjuster To move stage up and down
Diaphragm Used to control the amount of light shined on the specimen
Conductor Used to focus the light ( not all microscopes show this)
Light source Provides light to the specimen
Base Used to keep the microscope stable
Coarse focus Focuses the image approximately
Fine Focus Focuses the image completely
Stage clips Keeps the slide in place
Arm Used to move the microscope safely around
Cell The smallest unit that holds all the characteristics of life
Microscopy The study of small objects
Specimen A sample of cell or tissue from animal or plant cell viewed under a light microscope
Cell microstructure The structure and organelles of animal&plant cells viewed under a microscope
Organelles Structures in cells
Cell membrane Surrounds cell, controls what enters and exits cell
Cytoplasm All the living parts of a cell except for nucleus
Protoplasm All living parts of cell including nucleus
Nucleus The control centre of the cell, contains DNA
The cell wall Only found in plant cells, gives it structure and strength
Vacuole It is used for storage and plant cells have a bigger vacuole than animals cells
Chloroplast Also only found in plant cells, gives plants it green colour through pigment called chlorophyll
Iodine stain Brown stain used to see PLANT CELLS clearer under microscope
Methylene blue stain Used to see ANIMAL CELLS clearer under microscope
Created by: Maevaduch
 

 



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