A.图甲中过程①为脱分化,体现了植物细胞的全能性 |
B.图甲中过程②常需用纤维素酶或果胶酶处理将愈伤组织分散成单个细胞 |
C.图甲中过程③培养过程中加入适量葡萄糖有利于维持渗透压 |
D.由图乙可知,人参细胞的数量和培养时间等因素会影响人参皂苷Rg3产量 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2