Types of Fruit PHOTOSYNTHESIS
Fruits can be eaten raw, frozen, stewed, It is the process by which plants, some
cooked, or dried. All fruits may be classified bacteria, and some protistans use the
into three major groups: simple, aggregate, or energy from sunlight to produce sugar,
multiple. which cellular respiration converts into
adenosine triphosphate (ATP), the "fuel"
Simple Fruits : one fruit that has developed used by all living things.
from the ovary of a single flower. Simple
fruits may either be fleshy, like plums and
peaches, or dry, such as walnuts and hazelnuts.
e.g. apples, pears, plums, tomatoes, peaches
Aggregate Fruits : a fruit formed from
several ovaries of one flower that produces
many tiny fruits clustered tightly together. e.g.
raspberries, blackberries, strawberries
Multiple Fruits : a fruit formed from the
fusion of the ovaries of many different flowers
which develop closely together to form one
bigger fruit. e.g. pineapples, figs, breadfruit,
The process of photosynthesis takes place
SEED in the chloroplasts, specifically using
chlorophyll, the green pigment involved in
After fertilization ovules developed into photosynthesis.
seed. The photosynthetic process uses water and
A seed is made of seed coat and embryo. releases the oxygen that we absolutely
The embryo is made up of a radicle, an must have to stay alive.
embryonal axis, and one or two The chemical reaction of photosynthesis
cotyledons. is: 6CO2 + 6H2O (+ light energy) →
C6H12O6 + 6O2
MAJOR TYPES OF FRUITS
Type Definition Examples
SIMPLE From a single pistil
Dry Indehiscent At maturity dry; does not split open
Achene Close-fitting pericarp surrounding a single seed Sunflower
Grain Close-fitting pericap fused to a single seed Corn, wheat
Nut Thick, woody pericarp surrounding a single seed Walnut, hazelnut
Dry Dehiscent At maturity dry and splits open
Legume Pod that splits along two opposite sides Beans, peas
Capsule Fruit opening by several splits or pores Cotton, poppy
Schizocarp Fruit splitting into 1-seeded segments Dill
Fleshy Mostly fleshy at maturity; do not usually split open
Drupe 1- to 2-seeded; the innermost pericarp layer, stony Plum, peach
and enclosing the seed(s)
Berry 1- to many-seeded; no stony innermost layer of Tomato, grape,
AGGREGATE Formed by fusion of several separate pistils of one Raspberry, cherimoya
MULTIPLE Formed by fusion of several separate pistils of Pineapple, fig
several grouped flowers