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Biology MCAT Ch:1,2,3_Kaplan
Terms in this set (18)
Which of the following does not describe connective tissue cells?
A. They account for most cells in muscles, bones and tendons.
B. They secrete substances to form the extracellular matrix
C. In organs, they tend to form the stroma
D. In organs, they provide support for epithelial cells.
A. They account for most cells in the bones, muscles and tendons.
~ Though bones and tendons are composed primarily of connective tissue, Muscle tissue is not because its considered a different type of tissue.~
List the types of nucleic acids that can form the genome of a virus?
Mitochondrial DNA is what 2 things?
Circular and Self-replicating
Which of the following is NOT a function of the smooth ER?
A. Lipid synthesis
B. Poison detoxification
C. Protein synthesis
D. Transport of proteins
C. Protein synthesis
What is the main function of the nucleolus?
Which organelle is surrounded by a single membrane?
What structure does NOT contain tubulin?
~Microfilaments are composed of actin~
Which mechanisms can account for a bacterium's ability to increase its genetic variability and adapt to resist different antibiotics
conjugation and transduction
Upon ovulation, the oocyte is released into the what?
What is the last point in the meiotic cycle in which the cell has a diploid number of chromosomes?
A. During interphase
B. During Telophase I
C. During interkinesis
D. During telophase II
B. During telophase I
During which phase of the menstrual cycle does progesterone concentration peak?
Which of the following would NOT be seen during pregnancy?
High levels of GnRH.
~High levels of progesterone and estrogen inhibit GnRH secretion, preventing FSH and LH secretion and the onset of a new menstrual cycle.
Which of the following developmental stages ahs the greatest nuclear-to-cytoplasmic ratio?
A. Eight-cell embryo
What system does the germ layer Ectoderm (Outermost layer) gives rise to and list the structures associated.
Integument system: Epidermis, hair, nails, epithelia of nose and mouth and lower anal canal.
From which of the following layers does the notochord form?
B. Mesoderm (Middle layer)
The influence of a specific group of cells on the differentiation of another group of cells is called:
Which if the following is likely to be found in maternal blood during pregnancy?
Progesterone produced by the placental cells.
A cell releases a substance that diffuses through the environment, resulting in differential of a nearby cell. this is an example of what?
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