Unit 4 Flashcards
Place the five steps of mitosis in order:
Anaphase
Interphase
Metaphase
Prophase
Telophase
(remember: I PMAT)
Interphase
Prophase
Metaphase
Anaphase
Telophase
When _______ are first formed, they have a nucleus, but it is absorbed before they begin their function in circulation.
red blood cells
white blood cells
platelets
red blood cells
________ attack foreign cells directly or secrete an enzyme that immobilizes foreign substances.
Enzymes
Thrombocytes
Nerves
Lymphocytes
Lymphocytes
__________ provides a transport system between cell parts and a surface on which reactions may take place.
Centrosome
Mitochondria
Endoplasmic reticulum
Organelles
Endoplasmic reticulum
_________ is the part between the outer cell membrane and the nuclear membrane.
Vacuole
Cytoplasm
Nucleus
Cytoplasm
These cells occur as continuous sheets on surfaces where material is transported to the cells.
Sensory cells
Absorptive cells
Nerve cells
Muscle cells
Absorptive cells
During mitosis, step three is referred to as _____________ .
metaphase
telophase
prophase
interphase
metaphase
_______ is the division of cells in which the genetic material of the cell is duplicated exactly.
Meiosis
Mitosis
Mitosis
During mitosis or meiosis, thin fibers called ___________ are attached to the chromosomes.
centromere
gametes
spindle fibers
tetrad
spindle fibers
The ________ is found in nearly all cells; it contains the hereditary information and is the control center for the cell.
cytoplasm
nucleus
axion
DNA
nucleus
________ are the cells that form layers of bone in the early stages of ossification (bone formation).
Dendrites
Osteoblasts
Basophils
Collagen
Osteoblasts
_________ are like a digestive organ and can be used to digest molecular matter or even the cell itself if it is dead or dying.
Golgi bodies
Chloroplasts
Lysosomes
Centrosomes
Lysosomes
Sex cells always have half the number of chromosomes that are present in ___________ body cells.
parent cells
somatic
daughter cells
ova
somatic
A group of four chromosomes is called (a) _________________.
gametes
parent cells
somatic
tetrad
tetrad
___________ are small bodies found on the surface of the endoplasmic reticulum or suspended free of other organelles in the cytoplasm.
Mitochondria
Lysosomes
Centrioles
Ribosomes
Ribosomes
What best descibes a cell membrane?
Rigid and pointless
Squishy and open
Rigid and open
Squishy and encloses cell contents
Squishy and encloses cell contents
The golgi apparatus processes ____________.
ribosomes
proteins
fats
vacuoles
proteins
What makes it impossible for a plant cell/plant to move?
Chloroplasts
Nucelus
Chloroplasm
Cell Wall
Cell Wall
The main job of the nucleolus is to make _____.
rRNA
RNA
genes
DNA
rRNA
What process takes place in the mitochondria?
Digestion
Oxygenation
Respiration
Photosynthesis
Respiration
Which organelle is most associated with a “factory-warehouse?”
Nucleus
Smooth ER
Rough ER
Cell Membrane
Smooth ER
