Chapter 3: Cell Structure Flashcards
Higher cells like those of the body are called
Eukaryotic
Cells without organelles are called
Prokaryotes
The sperm cell has a _____ to propel it
Flagellum
Cells are measure in terms of
Micrometer
Living cells were first observed by a man named
Anton Von Leeuvenhoek
The cell membrane is called the
plasma membrane/plasmalemma
Protoplasm inside the nucleus
Nucleoplasm
Molecule with unequal distribution of electrons
polar
compounds that do not readily dissolve in water
non-polar
How many chromosomes in the human body
46
Spherical particle in the nucleoplasm
Nucleolus
Folds of the inner membrane of the mitochondria
Cristae
All cells have approximately the same number of
mitochondria
Proteins are assembled from
Amino Acids
Expulsion of lysosome enzymes into the cell cytoplasm is known as
autolysis
membrane forming a collection of cavities
endoplasmic reticulum
rough er is the site of
protein synthesis
the points of collection for compounds to be secreted are the
golgi apparatus
messenger RNA attaches to ____ during protein synthesis
Ribosomes
The molecule that copies codes from the DNA molecule in the nucleus is called the
Messenger RNA - mRNA
___RNA will go into the cytoplasm and collect amino acids
Transfer RNA - tRNA
Two centrioles is also known as
centrosome
Cellular organelles located on the surface are ___ and ___
Cilia and Flagella
Euglena are propelled by
Flagellum
Paramecium is propelled by
cilia
____ cause plants to look green
chloroplasts
____ occurs inside chloroplasts
photosynthesis
Layers of proteins, enzymes, and chlorophyll make up the ___
Grana
Plant cell walls are composed of
Cellulose
Carotenoid pigments
Xanthophyll and Carotene
Pattern of the bi-phospolipid layer
Fluid Mosaic Pattern
It is on the ___ of the mitochondria that cellular respiration occurs
Cristae
_____ is a natural process by which cells in the body die and is controlled by specific genes
Apoptosis
Structure within protoplasm
Organelles
Organelles for phtosynthesis
chloroplasts
Protoplasm inside nucleus
nucleoplasm
One-thousandth of a milimeter
Micrometer
Attracts water
Hydrophillic
Repels Water
Hydrophobic
Protoplasm outside the nucleus
cytoplasm
dark threads in nucleus
chromatin
controls all cell functions
DNA
Contain digestive enzymes
Lysosome
Smooth ER
Agrannular
Resembles a stack of saucers
Golgi Body
Foreign proteins
Antigens
Protein makes long hollow cylinders
Tubulin
Plants look green
Chlorophyll
Bacteria cells are
prokaryotic
The most prominent structure in the cell is the
nucleus
the first person to observe a living cell was
Leeuwenhoek
ATP is needed in cells for which process
Active Transport
Which is NOT a function of protein in the cell membrane ATP synthesis Pass molecules and ions Receptors for hormones Identity Markers Sodium-potassium pump
Identity Markers
Protoplasm is
the liquid portion of a cell
Clumps of atoms distributed throughout a medium is a
Colloid
Compounds of unequal distribution of bonding electrons are said to be
soluble
which of the following would not go into a solution sodium potassium chlorine phosphorus none of the above
None of the above
Which of the following are NOT colloidally suspended in the cytoplasm Proteins carbohydrates fats nucleic acid none of the above
None of the above
Which of the following are not surrounded by a membrane nucleus nucleolus animal cell vacuole plant cell
Plant cell
The code to make protein is found in the
DNA
The genetic material of the cell is found in the
Chromatin
There are many folds in the plasma membrane nuclear membrane mitochondrion membrane vacuole membrane plant membrane
Mitochondrion membrane
Cellular respiration occurs on the
cristae
Mitochondria with many cristae will be found in which cells
Muscle
Maintenance and repair of cellular components is a function of the
lysosome
Sac-like or channel-like cisternae are found in the
endoplasmic reticulum
the site of protein syntehsis in the cell is the
ribosome
The concentration of compounds to be secreted is a function of the
golgi body
the substance that gives plants a green color is
Chlorophyll
The substance that gives plants a red-orange color is
carotene
The fier in our diet from plants is the substance
cellulose
protein syntehsis relies on which of the following grana leucoplasts mRNA vacuoles lamella
mRNA
during protein synthesis amino acids are collected. The code for a particular amino acid is made possible by three bases using the element
nitrogen
centrioles function during
cell division
the number of plastids found in a plant cell
3
the process of photosynthesis occurs in the
chloroplast
the nuclear membrane allows certain materials to leave the nucleus thorugh
pores
the protoplasm outside the nucleus is called the
cytoplasm
the nuclear membrane is sometimes refereed to as the nuclear
envelope
Chromosomes are made of DNA molecules and
proteins