True or False: Sharing information is not an important part of science.
False
100
This organelle directs the cells activity.
What is the nucleus.
100
When a cube of sugar is placed in a beaker of water, the sugar molecules spread through the beaker by?
Diffusion
100
How many molecules of ATP are produced from one cycle of respiration within a cells mitochondria?
38 ATP
100
The stage of mitosis in which the chromatids move to opposite poles?
What is Anaphase
200
True or False: A theory can be proven true beyond all doubt.
False
200
List the two types of hairs found on the external surface of some cells that aids in movement. Short = ?? Long = ???
Short = Cilia Long = Flagella
200
Glucose enters a cell most rapidly by?
facilitated diffusion
200
True or False: Chromatography is a method of separating components of a chemical based on their varying rates of movement upon a piece of filter paper?
True
200
The number of viable eggs that can be produced from a single cell during meiosis?
1 egg cell and 3 polar bodies
300
True or False: Scientists have identified all species of organisms on earth.
False
300
True or False: Microfilaments help to form the skeleton of the cell to give it shape.
True
300
When the cells in a plant have low turgor pressure, the plant?
Wilts
300
Name the plastid that is responsible for the color yellow in plants and flowers.
Xanthophyll
300
If a gamete cell has 12 chromosomes, how many chromosomes do the other cells in this organism have?
24
400
A small group used to represent an entire population is called a ?
Sample
400
The maximum size to which a cell may grow is limited ultimately by the amount of?
Membrane surface
400
The part of the cell that functions to maintain homeostasis relative to the cell’s environment is the?
Cell Membrane
400
Write out the complete formula for Photosynthesis.
6CO2 + 6H2O Sunlight/Chlorophyll 6O2 + C6H12O6
400
What is the production of sperm cell (gametes) called?
spermatogenesis
500
A microscope that scans the surface of an object with a beam of electrons is called a ?
SEM (Scanning Electron Microscope)
500
a.) Who was the first person to observe dead cork cells?
b.) Who was the first person to observe living protoplasm (cells)?
a.) Robert Hooke
b.) Antonie van Leeuwenhoek
500
When a solution has reached an equal distribution of molecules, we say it is in a state of ?