Jamb 1987 Biology Questions
Question 16:
The correct sequence of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside is
- A Pith, phloem, cambium, xylem, parenchyma, collenchyma and epidermis
- B Xylem, phloem, cambium, cortex, endodermis, collenchyma and epidermis
- C Pith, xylem, cambium, phloem, collenchyma, parenchyma and epidermis
- D Phhloem, xylem, cambium, cortex, endodermis, collenchyma and epidermis
Question 17:
Secondary thickening is initiated in a dicotyledonous stem by the
- A Xylem parenchyma
- B Secondary phloem
- C Endodermis
- D Cambium
Question 18:
In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to
- A Prevent alga growth in culture solution
- B Allow root growth
- C Prevent breakdown of mineral elements
- D Prevent photosynthesis in the root
Question 19:
The vitamin which is important in the formation of the retina pigment is
- A Vitamin A
- B Vitamin B
- C Vitamin C
- D Vitamin D
Question 20:
Which of the following lists of organs is directly involved in nutrition?
- A Oesophagus, bronchus, stomach, pancreas and anus
- B Spleen, pharynx, duodenum, jejunum and rectum
- C Teeth, oesophagus, ileum lungs and large intestine
- D Salivary gland, liver, stomach, villi and colon