题目内容

The longest cell in an animal is a（）

A. lymphocyte
B. red blood cell
C. hepatocyte
D. nerve cell

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（）consists of stroma, organelles, and inclusions

A. The cell membrane
B. The cytoplasm
C. The nucleus
D. None of the above

（）is parallel to the ground, and the animal body is divided into two asymmetrical parts: the back and the abdomen

A. The forehead
B. Sagittal plane
Cross section
D. None of the above

（）is one of the nuclear components, which has the functions of rRNA synthesis, processing and ribosome subunit assembly

A. Nuclear membrane
B. Caryoplasm
Chromatin
D. Nucleolus

The organelle related to cell division and spindle formation is（）

A. mitochondrion
B. centrosome
C. endoplasmic reticulum
D. Golgi complex