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63 terms

Test 2

STUDY
PLAY
24
A cell with 24 chromosomes divides by the mitosis. How many chromosomes are present in each of the daughter nuclei?
1
Haploid refers to _______ chromosomes of each type.
True
The mechanism of cytokinesis (division of the cytoplasm) is different in plant and animal cells.
S
During which phase of the cell cycle are the chromosomes duplicated?
True
Meiosis results in the production of 4 haploid nuclei.
Centromere
Sister chromatids are attached to each other at the_______.
Interphase
Which "phase" is NOT a formal stage of mitosis?
Telophase
During which phase does the nuclear envelope begin to reform?
Dividing
Visible chromosomes are a feature of a ________nucleus.
Mitosis
When humans donate blood, the red blood cells of the donor are replaced by_________.
G1
In terms of the cell cycle, neurons are generally "locked" in_________.
False
During mitosis, homologous chromosomes "pair."
Golgi Body
The cell wall material in the vesicles of the cell plate was "packaged" in a _______.
Mitochondrian
Which organelle is responsible for "maternal" inheritance in humans?
No
The cell wall is an intracellular cellular structure.
True
Individual genes have a specific location on a specific chromosomes.
Binary Fission
Bacteria divide by______.
Parasitic Bacteria
Bacterial diseases are caused by______.
True
Most bacteria are heterotrophic saprobes.
True
Eukaryotic cells evolved from a prokaryotic ancestor.
Bubonic Plague
Which disease ravaged the population of Europe in the 1400's?
False
At some point, viral cells divide.
False
Plant and bacterial cell walls are the same.
Prophase I
"Crossing Over" occurs during_______.
1
Human sperm cells carry______chromosome of each and every type.
Increase
Crossing over tends to______genetic diversity.
Meiosis
Oogenesis and spermatogenesis utilize______.
False
After meiosis, each gamete(sperm or egg) is_______.
Anaphase I
The centromeres DO NOT divide in meiosis as the cell moves into:
Lipids
Nile blue can be used to test for the presence of________.
False
Proteins are only found in animal tissue.
Amino Acids
Ninhydrin can be used to test for the presence of______.
Increase
If an omnivorous dinosaur began eating more plant than animal tissue, the starch concentration of its stomach contents would_______.
True
All proteins are polymers of amino acids.
Starch
Which biochemical would you not expect to find in the stomach contents of a carnivore.
False
Apples have more protein than milk.
False
Qualitatively, the biochemical profiles of plants and animals are very different.
Transmission Electron
Which type of microscope can be used to observe very small subcellular structures?
Light
Which type of microscopy uses chemical stains to add color and increase contrast?
Scanning Electron
Which type of microscope can be used to observe very small surface detail?
1000
In general, light microscopes can magnify an object up to approximately______X.
True
In general, bacterial cells are smaller than the cells of eukaryotic plants and animals.
Onion, Phloem, Xylem, Bacterial
Which type of cell has a cell wall?
Centriole
Which organelle is not found in a typical plant cell?
False
Prokaryotic cells possess a nucleus.
Golgi Body
Which organelle does not have a double membrane?
A plasma membrane
All cells possess______.
Prokaryotic
Cytoplasm lacking membrane-bound organelles is a feature of_______cells.
False
Bacterial, plant, and animal cells all have a cell wall.
Golgi Bodies
Which organelle functions in "packaging"?
True
Eukaryotic cells capable of photosynthesis would all possess at least one chloroplast.
True
Prokaryotes lack any membrane-bound organelles.
Chloroplasts
Which double membrane bound organelle is not the site of cellular respiration?
Nucleus
Chromatin is a feature of which organelle?
Nucleus
Eukaryotic chromosomes are found in the________.
Single
The endoplasmic reticulum is surrounded by a________membrane.
All eukaryotic cells
An endoplasmic reticulum is a feature of__________.
Rough
Endoplasmic reticulum with ribosomes attached is referred to as ______endoplasmic reticulum.
Chloroplasts
Starch grains are the storage form of polysaccharide. Where would you expect to find them?
Always true
The Cell Theory states that all living things are composed of cells. This statement is_________.
True
The cell theory states that all cells come from pre-existing cells.
Bacterial
In which type of cell would you expect to find cytoplasmic DNA?
True
By definition, prokaryotes do not exhibit true multicellularity.