Mitotic activity by the apical meristem of a root makes which of the following more possible?
A) increased delivery of water to the aboveground stem
B) decreased absorption of mineral nutrients
C) increased absorption of carbon dioxide.
D) effective lateral growth of the stem
A
You might also like to view...
Which of the following is not true about histone modification and the enzymes that create them?
A. The enzymes responsible are often part of multiprotein complexes that include transcription factors. B. The enzymes responsible can work with chromatin remodeling complexes to alter specific regions of chromatin in response to environmental signals. C. The modifications can be passed on by epigenetic inheritance. D. The enzymes responsible can create histone variants. E. All of these choices are correct.
Which of the following pairs of terms best describes the concept of membrane potential?
a) diffusion / facilitated diffusion b) concentration gradient / electrical gradient c) passive processes / active processes d) low concentration / high concentration e) selective permeability / osmosis
The three steps that take place in each cycle during PCR occur in which order?
A. DNA synthesis, denaturation, and annealing B. DNA denaturation, annealing, and synthesis C. DNA annealing, denaturation, and synthesis D. DNA denaturation, synthesis, and annealing
Place the steps of bacterial antigen processing and presentation in the correct order
1. Lysosomal enzymes digest the bacterium into molecular bits. 2. The antigen-MHC complex is displayed on the cell surface. 3. The endocytic vesicle fuses with a lysosome. 4. A bacterium is engulfed by a phagocytic cell.
a. 4-3-1-2 b. 4-3-2-1 c. 3-4-2-1 d. 3-4-2-1 e. 2-4-3-1