1999 年
生物 · 共 59 題 · 點擊選項即時核對答案
In the set-up above, the rate of movement of the air bubble measures
Which of the following blood vessels has the lowest blood pressure ?
All cells in a flowering plant have
Directions : Questions 24 and 25 refer to the photomicrograph below, which shows the transverse section of two blood vessels connecting the heart and the lung :
Which heart chamber is connected to vessel X ?
Directions : Questions 24 and 25 refer to the photomicrograph below, which shows the transverse section of two blood vessels connecting the heart and the lung :
Which of the following comparisons between the blood in vessels X and Y is correct ?
| Oxygen concentration: X | Oxygen concentration: Y | Glucose concentration: X | Glucose concentration: Y | |
|---|---|---|---|---|
| higher | lower | higher | lower | |
| lower | higher | lower | higher | |
| higher | lower | lower | higher | |
| lower | higher | higher | lower |
Directions : Questions 26 and 27 refer to the photomicrograph below, which shows a human blood smear :
Which type of cells contains the least amount of DNA ?
Directions : Questions 26 and 27 refer to the photomicrograph below, which shows a human blood smear :
Which of the following descriptions of cell type Q is incorrect ?
A person has not taken any food for 24 hours. Which of the following components of the blood increases in concentration after passing through the intestinal villus of the person ?
Mary bought a bunch of blue flowers from the market. In order to find out whether the colour was artificially introduced or not, she prepared a section of the stem and observed it under the microscope. Which of the following correctly shows the condition of the section if the colour of the flowers was artificially introduced ? (Key : ■ area stained blue)
When you are reading through a page, only a few words can be seen clearly each time. This is because