ONE EIGHTH CONTEST 2025
Presbyterian Boys' Sec. School - 55 points
Oti Boateng SHS - 35 points
T.I. AMASS, Kumasi - 34 points
ONE EIGHTH CONTEST 2025
Our Lady of Grace SHS - 56 points
Bishop Herman College - 39 points
Ejisuman SHS - 27 points
ONE EIGHTH CONTEST 2025
GSTS - 50 points
Nkwatia Presbyterian SHS - 45 points
Ashaiman SHS - 28 points
ROUND 1
SECOND SET OF BIOLOGY QUESTIONS
PREAMBLE
Name the edible part of the given fruit.
1. Orange
ANSWER: Endocarp
2. Coconut
ANSWER: Endosperm
3. Mango
ANSWER: Mesocarp
EXPLANATION
1. The endocarp is the innermost layer of the fruit surrounding the seeds. In oranges, the juicy segments we eat are part of the endocarp.
2. The endosperm is the nutritive tissue inside the seed that provides food for the developing embryo. In coconuts, the white flesh (copra) and the liquid (coconut water) are derived from the endosperm.
3. The mesocarp is the middle layer of the fruit. In mangoes, the fleshy, juicy part that we eat is the mesocarp.
PRACTICE QUESTIONS
1. Name the three layers of the pericarp from the outside to the inside.
ANSWER: Epicarp (exocarp), mesocarp and endocarp.
2. Which layer of the pericarp forms the outer skin of the fruit?
ANSWER: The epicarp.
3. Which layer of the pericarp forms the juice sacs of an orange?
ANSWER: The endocarp.
4. Which layer forms the white spongy pith of an orange?
ANSWER: The mesocarp.
5. Which layer of the pericarp is eaten in a mango?
ANSWER: The mesocarp.
6. Which layer forms the hard stone of a mango?
ANSWER: The endocarp.
7. What type of fruit is a mango?
ANSWER: A drupe.
8. What type of fruit is a coconut?
ANSWER: A fibrous drupe.
9. Which layer of the pericarp forms the fibrous husk of a coconut?
ANSWER: The mesocarp.
10. Which layer of the pericarp forms the hard shell of a coconut?
ANSWER: The endocarp.
11. What is a fruit?
ANSWER: A ripened ovary, usually with seeds inside.
12. From which part of the flower does the pericarp develop?
ANSWER: The ovary wall.