Which term refers to the process by which large particles are taken in by a cell?
a. Phagocytosis
b. Pinocytosis
c. Exocytosis
d. Diffusion
a. Phagocytosis
Phagocytosis refers to the process by which large particles are taken in by a cell.
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Mouse pigmentation is subject to epistasis of the B alleles by the d alleles. B (black) is dominant over b (brown), and
D is dominant over d. Homozygous d is epistatic to the black and brown genes. Given this information, what genotype(s) result in a white mouse (no pigment)?
a. BBdd only b. Bbdd only c. bbDD only d. bbDd only e. BBdd and Bbdd
If ?P = 0.3 MPa and ?S = -0.45 MPa, the resulting ? is _____.
a. +0.15 MPa b. -0.15 MPa c. -0.75 MPa d. +0.75 MPa e. -0.42 MPa
The fluid mosaic model proposed by Singer and Nicolson in 1972 explained that
A. the cell membrane was composed of lipids and proteins. B. the cell membrane was composed of a phospholipid bilayer but the polar ends of the phospholipid molecules were reversed. C. the cell membrane was composed of a phospholipid bilayer between two layers of globular proteins. D. the cell membrane was composed of a phospholipid bilayer with globular proteins actually inserted into the bilayer.
A eukaryotic flagellum can either push a cell through a liquid environment or pull it through depending on the undulating pattern of movement.
Answer the following statement true (T) or false (F)