MICROSCOPES
The part of the microscope you look through, which typically has a magnification of 10x.
What is the eyepiece (or ocular lens)?
The starting color of Benedict's solution before it is heated and reacts with a simple sugar.
What is blue?
The first step of nutrition in animals; the physical act of taking food materials into the body.
What is ingestion?
This machine spins samples at high speeds to separate liquid materials based on their densities.
What is the centrifuge?
A printed series of paired statements used by biologists to identify an unknown organism based on its physical characteristics.
What is a dichotomous key?
The total magnification achieved when using a 10x eyepiece and the 40x objective lens.
What is 400x?
The specific chemical indicator used to test for the presence of starch.
What is iodine solution (or Lugol's solution)?
The general process of building large, complex molecules (like proteins or hormones) from smaller, simpler molecules absorbed by the cells.
What is synthesis?
This technique uses electricity to pull small pieces of DNA through a jelly-like material called a gel.
What is electrophoresis?
In the scientific name Felis leo, this is the name of the species.
What is leo?
The way a specimen's image appears to move when viewed through the microscope, compared to how the stage is actually moved.
What is inverted and reversed (or moves in the opposite direction)?
The essential physical condition required for Benedict's solution to react with a simple sugar and show a color change to brick red.
What is heat (or boiling/heating)?
The process that converts the chemical energy stored in digested nutrients (like glucose) into usable cellular energy (ATP).
What is cellular respiration?
This technique is often used to separate different pigments found in a leaf or different components found in black ink.
What is chromatography?
Only organisms that are of the same species can do this.
What is breed and produce fertile offspring?
The function of the diaphragm or light intensity control, located beneath the stage.
What is regulating the amount of light passing through the specimen?
The color change observed when iodine solution yields a positive test for the presence of starch.
What is blue-black (or dark purple/black)?
If waste products from metabolism, such as carbon dioxide or urea, are not removed, this life function is disrupted.
What is excretion?
The primary reason scientists apply colored stains (like methylene blue or iodine) to microscopic specimens before viewing them.
What is to increase contrast (or to make internal structures visible)?
The number of micrometers that are equal to 1 millimeter (mm).
What is 1,000?
As magnification increases (e.g., from 40x to 400x), the area of the slide visible to the user does this.
What is decreases (or shrinks)?
If a potato tested positive with iodine but negative with Benedict's solution, this is the complex carbohydrate that the potato primarily contains.
What is starch?
If your body temperature drops too low, your nervous system triggers a physical reaction to generate heat and restore normal internal body temperature.
What is homeostasis?
In DNA separation, the smaller fragments travel this way through the gel compared to the larger fragments.
What is faster (or further)?
If 10 cheek cells fit side-by-side across a field of view that is 2,000 micrometers wide, this is the estimated width of a single cheek cell.
What is 200 micrometers?