Q3:3. Which of the following is not related with the straits of DNA?
A. It consists of nucleotides, which are made up of deoxyribose, phosphate, and nitrogen base.
B. It has single helix structure.
C. RNA is synthesized according to instructions from it.
D. It has antiparallel structure, which means 5 end bonding with 3end.
Q4:4. The animal cell is filled with cytoskeletons so that it can keep its shape stable.
True
False
Q5:5. Which of the following is false about cytoskeletons?
A. Centrosome which makes spindle fibers is made up of two centrioles.
B. Pseudopods that allow ameba to move is an example that is related with microfilaments.
C. Flagella are not made of microtubules when present in prokaryotes.
D. Cilia and spindle fibers consist of 9 pairs of microtubules organized around 2 singlet microtubules.
Q6:6. Cell membrane is more permeable than cell wall.
True
False
Q7:7. What decides either it is passive transport or active transport?
A. Was the energy (ATP) used?
B. Did solute move?
C. Was there any movement of solvent?
D. Was the movement random?
Q8:8. Explain the differences between endoplasmic reticulum (ER) and Golgi apparatus.
选项1