BIO 192 - Worksheet #10

BIO 192 - Worksheet #10
Seeds and Fruits

1. What are four types of seed dormancy?

2. In a peach:
a) What is the more "technical" name for the peel?
b) What is the more "technical" name for the peach pit?
c) What is the more "technical" name for the fleshy part of the peach?
d) The answers to a, b, and c combined make up what structure?

3. What is another name for a mature ovary in angiosperms?

4. What is a hypanthium?

5. Specifically describe the characteristics of an imperfect pistillate dioecious flower?

6. Describe the following types of fruits:
a) pepo -
b) nut -
c) achene -
d) drupe -
e) pome -
f) hesperidium -
g) berry -
h) capsule -

7. MATCHING (each has only one answer)

A. Cucurbitaceae
B. Lamiaceae
C. Rosaceae
D. Rutaceae
E. Solanaceae
F. Bromeliaceae

__________ i.) has a capsule as a fruit type
__________ ii.) has an achene as a fruit type
__________ iii.) flowers have an upper and lower lip
__________ iv.) has a pome as a fruit type
__________ v.) includes cucumbers, pumpkins, squash, and watermelons
__________ vi.) has a multiple fruit
__________ vii.) a hypanthium is usually present
__________ viii.) has a pepo as a fruit type
__________ ix.) includes tomatoes and potatoes
__________ x.) includes pineapples
__________ xi.) includes mint, basil, sage, rosemary, and thyme
__________ xii.) includes the citrus family
__________ xiii.) has a berry as a fruit type
__________ xiv.) has a nut as a fruit type
__________ xv.) includes medicinal plants
__________ xvi.) has a hesperidium as a fruit type
__________ xvii.) includes strawberries
__________ xviii.) has a drupe as a fruit type
__________ xix.) can be composed of 100 to 200 ovaries
__________ xx.) includes tobacco

8. REVIEW - Place an X to indicate which characteristics apply to which group of plants.

Characteristic
Mosses
Ferns
Gymnosperms
Angiosperms
a) multicellular embryo . . . .
b) contain xylem and phloem . . . .
c) spores are heterosporous . . . .
d) protected, "non-naked" seeds . . . .
e) sporophyte stage is dominant . . . .
f) non-swimming sperm, pollen . . . .
g) sporophytes are diploid . . . .
h) ovules contained inside ovaries . . . .
i) animal pollinators, fruits . . . .
j) spore mother cells produce 4 diploid spores only one of which actually survives . . . .
k) contain megasporangium . . . .
l) endosperm provides food for embryo . . . .