Fruit And Flower

Question 2

What is a stigma?

Answer 2

Sticky top where pollen lands.

Question 3

What is the style in a flower?

Answer 3

Tube connecting stigma to ovary.

Question 4

What is an ovary?

Answer 4

Enlarged base containing ovules (becomes fruit after fertilization).

Question 5

What is an ovule?

Answer 5

Inside ovary; becomes seed.

Question 6

What does the anther do?

Answer 6

Produces pollen (male gametes).

Question 7

What is the function of the filament?

Answer 7

Supports the anther.

Question 8

What is the role of petals?

Answer 8

Attracts pollinators.

Question 9

What is the purpose of sepals?

Answer 9

Protects the developing flower bud.

Question 10

What is a perfect flower?

Answer 10

Has both male (stamen) and female (carpel) parts.

Question 11

What is an imperfect flower?

Answer 11

Missing either stamen or carpel (unisexual).

Question 12

What defines a complete flower?

Answer 12

Has all 4 basic parts (sepals, petals, stamens, carpels).

Question 13

What is an incomplete flower?

Answer 13

Missing one or more basic parts.

Question 14

What is a monocot flower?

Answer 14

Petal number in multiples of 3; examples include Tulip and Lily.

Question 15

What is a dicot flower?

Answer 15

Petal number in multiples of 4 or 5; examples include Rose and Sunflower.

Question 16

What is the basic definition of a fruit?

Answer 16

A fruit is the mature ovary of a flower. Contains seeds that develop from ovules after fertilization.

Question 17

What is a simple fruit?

Answer 17

Develops from a single ovary of one flower.

Examples: Apple, Cherry, Pea pod.

Question 18

What is an aggregate fruit?

Answer 18

Develops from multiple ovaries of one flower.

Examples: Raspberry, Strawberry.

Question 19

What is a multiple fruit?

Answer 19

Develops from ovaries of multiple flowers fused together.

Example: Pineapple.

Question 20

What are the characteristics of fleshy fruits?

Answer 20

Soft, juicy tissue.

Examples: Apple, Grape, Tomato.

Question 21

What are dry fruits?

Answer 21

Dry outer covering when mature.

Examples: Peanut, Walnut, Pea pod.

Question 22

What is a drupe?

Answer 22

Fleshy fruit with a single hard pit.

Examples: Cherry, Peach.

Question 23

What is a pome?

Answer 23

Core of fruit contains seeds; flesh from receptacle.

Examples: Apple, Pear.

Question 24

What is a legume?

Answer 24

Dry fruit that splits along two sides.

Examples: Pea, Bean pod.

Question 25

What is a nut?

Answer 25

Dry, hard, indehiscent fruit. ## Footnote Examples: Acorn, Hazelnut.

Question 26

What type of fruit is an apple?

Answer 26

Simple, Fleshy, Pome.

Question 27

What type of fruit is a peach?

Answer 27

Simple, Fleshy, Drupe.

Question 28

What type of fruit is a raspberry?

Answer 28

Aggregate Fruit.

Question 29

What type of fruit is a pineapple?

Answer 29

Multiple Fruit.

Question 30

What type of fruit is a pea pod?

Answer 30

Simple, Dry, Legume.

Question 31

What type of fruit is an acorn?

Answer 31

Simple, Dry, Nut.

Question 32

What type of fruit is a strawberry?

Answer 32

Aggregate Fruit.

Question 33

What is a key recognition tip for simple fruits?

Answer 33

If it's from ONE ovary of ONE flower, it’s Simple Fruit.

Question 34

What is a key recognition tip for aggregate fruits?

Answer 34

If it’s from MANY ovaries of ONE flower, it’s Aggregate Fruit.

Question 35

What is a key recognition tip for multiple fruits?

Answer 35

If it’s from MANY ovaries of MANY flowers fused, it’s Multiple Fruit.

Question 36

What is a key recognition tip for drupes?

Answer 36

If it’s fleshy + pit → Drupe.

Question 37

What is a key recognition tip for pomes?

Answer 37

If it’s fleshy + core → Pome.

Question 38

What is a key recognition tip for legumes?

Answer 38

If it’s dry + splits open → Legume.

Question 39

What is a key recognition tip for nuts?

Answer 39

If it’s dry + hard + does NOT split → Nut.

Question 40

What is the first step in the Angiosperm life cycle?

Answer 40

Pollination: Pollen grains (n) from anther land on stigma of a flower.

Question 41

What happens during pollen tube growth?

Answer 41

Pollen tube grows down the style toward the ovule in the ovary.

Question 42

What is double fertilization?

Answer 42

Formation of zygote (2n) and endosperm (3n) simultaneously. ## Footnote 1 sperm fertilizes the egg → forms a Zygote (2n) and 1 sperm fuses with two polar nuclei → forms Endosperm (3n).

Question 43

What occurs during seed development?

Answer 43

Zygote (2n) → Embryo inside seed; Endosperm (3n) → Food supply for embryo.

Question 44

What is the result of fruit formation?

Answer 44

Ovary tissue matures and becomes the fruit; Ovules develop into seeds inside the fruit.

Question 45

What is pollination?

Answer 45

Transfer of pollen to the stigma.

Question 46

What is a zygote?

Answer 46

Fertilized egg cell (2n).

Question 47

What is endosperm?

Answer 47

Nutritive tissue (3n) for seed development.

Question 48

What is a fruit?

Answer 48

Mature ovary containing seeds.

Question 49

What is a seed?

Answer 49

Mature ovule containing embryo.

Question 50

What does the zygote become?

Answer 50

Becomes the embryo (baby plant).

Question 51

What does the endosperm become?

Answer 51

Becomes the food for the baby plant.

Question 52

What does the ovary become?

Answer 52

Becomes the fruit.

Question 53

What does the ovule become?

Answer 53

Becomes the seed.

Question 54

What is unique to Angiosperms regarding fertilization?

Answer 54

Double fertilization is ONLY true for Angiosperms (Flowering Plants). ## Footnote Gymnosperms (like Pine trees) do not have double fertilization — they only form a zygote!