Experiment 1 Flashcards
When viewed under the microscope, the specimen letter “e” was in ______ position
inverted
When moved from left to right under the microscope, it was observed that it moves in the ____________
opposite direction
Two lens system in compound microscopes
eyepiece and objective lenses
What causes the images to be observed
The lenses through the objective invert the position of the image under the microscope as the light passes through these two objectives
Total magnification equation
Power objective x Power of the eyepiece
Objective that can be changed with minimal or no refocusing
Parfocal
When the microscope is adjusted from one magnification to another, it remains in focus the entire time.
Parfocal
What is used for very large magnifications
Oil Immersion Objective
Oil Immersion Objective is used only at ________ that require _______
Very large magnification, High-resolution power
Allows the objective to collect more light to form an image
Mirror
Oil allows the objective to collect more light to form an image due to its _______
Refractive index
Defined as the measure of bending of a light ray when it passes from one medium to another
Refractive index
Routinely used for immersion
Cedar Wood Oil / Cedar Oil
Alternative to Cedar Oil
Liquid Paraffin
Closing and opening of the Iris Diaphragm
reduces the amount of illumination of the specimen but increases the amount of contrast
Thread experiment deals with the so-called ________
Depth of Focus
__________- deals with the so-called Depth of Focus
Thread experiment
The range of distance for which the specimen is imaged with an acceptable sharpness on the image plane
Depth of focus
For handling of microscope, the proper way is ___________ and ________ with your other hand
hold the arm, Support the base
________ when focusing on the microscope
Open both eyes
Guava
Psidium guajava
Ferm
Asplenium nidus
Gumamela
Hibiscus rosa-sinensis
Coconut
Cocos nucifera
Mango
Mangifera indica
Corn
Zea mays
Mung bean
Vigna radiata
Ulasimang bato, Pansit-pansitan
Peperomia pellucida
The tiny openings present in the epidermis of leaves
Stomata
Opening in the center
pore
Stomata is a ____________ epidermal cell
kidney-shaped
Stomata is the tiny opening present on _______
the epidermis of leaves
Stomata is bordered by a pair of specialized parenchymal cells which are the __________
guard cell
Functions of stomata
Guard cells regulate the size of an opening
Stomata optimizes C gain per unit H2O loss
It facilitates the exchange of gases while limiting water loss by closing and opening the pores in the leaves
It removes oxygen and takes in Carbon dioxide at the time of photosynthesis
Guard cells regulates the __________
size of the opening
Stomata optimizes
C gain per unit H2O loss
Stomata facilitates ________
exchange of gases
Stomata limits water loss by ________
Closing and opening of the pores
Removes _______ and take in ______ at the time of Photosynthesis
Oxygen and carbon dioxide
Parts of stomata
Epidermal cells
Subsidiary cell
Stomata pores
Guard cells
Male gametophytes
Pollen grains
important to the evolution of land plants
Pollen grains
Pollen grains are innovative structures that allow seeds to ______ and _______
Break reproduction, development of embryo to conquer dry land
Waxy layer of the leaf
cuticle
A zygote that develops
Embryo
Seeds contain _______, a zygote the develops
embryo
Seeds contain an embryo, a zygote that develops to grow leading to “__________”
Germination
What is the importance of the waxy layer of the leaf (cuticle covering) in relation to their evolution on land
It deflects sunlight thereby reduces rate of water loss
Transport nutrients and water through ________ and ________
Xylem and Phloem
Have scattered vascular tissues
Monocot root
Vascular tissues that are arranged in a ring-like form
Dicot roots
Primitive structures of moss
They lack true vascular tissues
They lack true stems, roots, and leaves
They have cells that can perform those general function
