Biology Flashcards
(24 cards)
What organelle is only found in plants and traps energy from the sun to make glucose?
Chloroplasts
What organelle produces proteins?
Ribosomes
What organelle controls all cell activities and contains DNA?
Nucleus
What organelle contains water and other materials and are used to store small molecules?
Vacuoles
What organelle is made up of filaments and tubules that provide a framework for the cell, maintaining structure?
Cytoskeleton
What organelle sorts and packages proteins and other molecules for transport out of cell?
Golgi Apparatus
What organelle separates the inside of the cell from the external environment?
Cell membrane
What organelle is a network of membrane-covered channels that transport materials made in the cell?
Endoplasmic Reticulum (ER)
What organelle includes the organelles and other life - supporting materials like sugar or water
It also has a jelly like composition
Cytoplasm
What organelle has a tough, rigid structure lying just outside a plant’s cell membrane?
Cell Wall
What organelle is the powerhouse of the cell and is where energy is released from glucose to fuel cell activities?
Mitochondria
What organelle are small, membrane - covered sacs that transport and/or store materials inside the cell?
Vesicles
Which 2 organelles are only found in plant cells?
Chloroplasts and Cell Wall
What do you do to find the total magnification of a microscope?
ocular lens x magnification
What is the equation for total magnification of low power?
4 (magnification) x 10 (ocular lens)
= 40 (total magnification)
What is the equation for total magnification of medium power?
10 (magnification) x 10 (ocular lens) = 100 (total magnification)
what is the equation for total magnification of high power?
40 (magnification) x 10 (ocular lens) = 400 (total magnification)
what dial do you turn for low power adjustment?
the coarse adjustment dial
what dial do you turn for both medium and high power adjustment?
the fine adjustment dial
why are cells so small?
a tiny cell is a lot faster and more efficient than a big one
easier to move around being smaller
why are cells so small?
a tiny cell is a lot faster and more efficient than a big one
easier to move around being smaller
true or false; all cells are exactly alike?
false, each cell has a specific function and because of that, may differ in shape and size
What helps define a prokaryote cell?
- has no nucleus
- has no organelles
- is always unicellular
-ex; bacteria
What helps define a eukaryote cell?
- has a nucleus
- has all organelles
- can be unicellular or multicellular
- ex; animal or plant cell
