Biology Pt1 Flashcards
(26 cards)
What is the formula for calculating magnification?
Magnification = Image size / Actual size
True or False: The magnification of a microscope can be calculated using the total magnification of the eyepiece and objective lenses.
True
Fill in the blank: The order of magnitude is a way to compare numbers by their _____ in powers of ten.
size
What is the order of magnitude of 1000?
3
Which type of cell is typically larger, plant cells or animal cells?
Plant cells
What is one key difference between plant and animal cells?
Plant cells have a cell wall; animal cells do not.
True or False: Both plant and animal cells contain mitochondria.
True
What organelle is responsible for photosynthesis in plant cells?
Chloroplasts
Fill in the blank: Specialized cells perform specific functions that contribute to the _____ of an organism.
homeostasis
Name one type of specialized cell found in animals.
Nerve cell (neurons)
What are root hair cells specialized for?
Absorbing water and nutrients from the soil.
True or False: Red blood cells contain a nucleus.
False
What is the primary function of white blood cells?
To fight infection.
What structure gives plant cells their shape and support?
Cell wall
Fill in the blank: The _____ is a jelly-like substance within both plant and animal cells.
cytoplasm
What is the function of the endoplasmic reticulum?
Protein and lipid synthesis.
True or False: All specialized cells have the same organelles.
False
What is the magnification of an image that is 200 mm when the actual size is 20 mm?
10x
What is the order of magnitude of 0.01?
-2
Name one type of specialized cell in plants.
Guard cells
Fill in the blank: Animal cells lack a _____, which is found in plant cells.
cell wall
What role do ciliated cells play in the respiratory system?
They help to move mucus and trapped particles out of the airways.
True or False: Specialized cells can change their function as needed.
False
What is the function of stem cells?
To differentiate into various types of specialized cells.