The body is made up of many different cell types, from small circular red blood cells to the elongated smooth muscle cells 20X its size. Why is there such variation in size and shape?
A. different cell sizes are due to nutritional differences
B. cell size and shape does not vary among cell type...
The body is made up of many different cell types, from small circular red blood cells to the elongated
smooth muscle cells 20X its size. Why is there such variation in size and shape?
A. different cell sizes are due to nutritional differences
B. cell size and shape does not vary among cell types
C. variations in cell shape and size are due to chromosomal differences between cells
D. different variations in size and shape allow differentiated cell types to perform unique functions -
ANSWERD. different variations in size and shape allow differentiated cell types to perform unique
functions
Metabolism is defined as _____.
A. the taking in of nutrients
B. the breakdown of substances into simpler forms
C. the removal of wastes produced by chemical reactions
D. all the chemical reactions occurring in an organism that support life - ANSWERD. all the chemical
reactions occurring in an organism that support life
During metaphase of mitosis, chromosomes first condense and become visible when stained and viewed
under a microscope.
True / False - ANSWERFalse
What type of chemical bond involves the sharing of a pair of electrons by two atoms in a molecule?
,A. hydrogen bond
B. covalent bond
C. ionic bond - ANSWERB. covalent bond
What occurs during the stage of protein synthesis called translation?
A. a polypeptide is built, based on mRNA base sequence.
B. tRNA is produced in the nucleus.
C. Complementary strands of DNA are assembled.
D. mRNA is built, using DNA as a template. - ANSWERA. a polypeptide is built, based on mRNA base
sequence
Cytokinesis is the process by which the _____ of a cell divides.
A. nucleus
B. cytoskeleton
C. cytoplasm - ANSWERC. cytoplasm
The origin of the term "anatomy" is related to
A. the Greek word for "function"
B. the function of internal organs
C. the name of the first anatomist
D. the Greek word for "cutting up" - ANSWERD. the Greek word for "cutting up"
, In cellular respiration,
A. cells breathe, or take in, O2 and give off CO2.
B. energy is released from molecules and is transferred to other molecules.
C. mitochondria release glucose molecules.
D. energy is absorbed from glucose and is transferred to CO2. - ANSWERB. energy is released from
molecules and is transferred to other molecules.
Which organelle contains the nucleolus?
A. the endoplasmic reticulum
B. the nucleus
C. the Golgi apparatus
D. the mitochondrion - ANSWERB. the nucleus
The elbow is distal to the wrist.
True / False - ANSWERFalse
Osmosis is the movement of
A. molecules from a high concentration to a low concentration.
B. water through a selectively permeable membrane to a solution containing a higher concentration of
impermeant solute.
C. ions from a low pressure region to a high pressure region through a selectively permeable membrane.
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