<h2>
Name and Function of The Microscope </h2>
A. Objective Lens.
function: gathers light from the specimen, magnifies the image of the specimen, and projects the magnified image into the body tube.
B. Stage Clips
function: hold the slides in place
C. Stage
function: This is the section on which the specimen is placed for viewing.
D. Light
focused light and lenses to magnify a specimen.
E. Base
The bottom of the microscope,used for support Illuminator.
F. Ocular Lens( Eyepiece )
The lens the viewer looks through to see the specimen.
G. Arm
connects to the base and supports the microscope head.
H. Diaphragm
used to vary the intensity and size of the cone of light that is projected upward into the slide.
I. Coarse Adjustment
used to bring the specimen into approximate or near focus.
J. Fine Adjustment
used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses.
There could be several orgins
Question: A "mystery molecule" was isolated in a laboratory and scientists found that the molecule readily crossed artificial membranes. Which of the following molecules can be ruled out as the "mystery molecule?"
a) CO2
b) O2
c) Cl-
d) H2O.
Answer:
c) Cl-
Explanation:
Membranes are the bilayers of phospholipids. The core of the membranes is non-polar and hydrophobic in nature due to the presence of non-polar fatty acid tails of phospholipids. The non-polar core of the membranes does not allow the charged particles such as chloride ions and the other polar and large substances to move through the membrane. The observed molecule could easily cross the artificial membrane. This means that the molecule was not a charged particle such as chloride ions.
Answer:
See below
Step-by-step explanation:
All the enzymes used in the glycolysis reactions are proteins.
The body can use proteins as alternate sources of energy, but they are involved only in the Tricarboxylic Acid Cycle and the reactions linking glycolysis to the cycle, and these occur after glycolysis.
Because alleles can be either dominant or recessive. For example eyes : brown dominant and blue recessive. The mom can have Bb which is dominant and recessive and the dad can have bb only recessive. There’s going to be a combination of alleles which leaves the outcome unknown. The offspring can inherit either: Bb or bb
