Lecture 12

Question 1

___ complete the life cycle of a flowering plant and start the next generation.

Answer 1

Seeds

Question 2

Seed coat = ___.

Answer 2

integuments

Question 3

Endosperm = ___ ___ + ___.

Answer 3

polar nuclei, sperm

Question 4

Seeds develop from ___ ___.

Answer 4

fertilized ovules

Question 5

Seeds include an ___ ___ and some form of nutritive tissue within a ___ ___.

Answer 5

embryonic plant, seed coat

Question 6

“Dicot” and “monocot” refer to the number of ___ ___ (or ___) present in the seed.

Answer 6

seed leaves, cotyledons

Question 7

In dicot seeds, they are attached to + enclose the embryonic plant, they occupy the greatest part of the seed, and they absorb the nutrients from the endosperm = ___.

Answer 7

cotyledons

Question 8

In dicots, cotyledons enclose the ___ ___.

Answer 8

embryonic plant

Question 9

In dicots, cotyledons absorb the nutrients from the ___.

Answer 9

endosperm

Question 10

A lima bean is an example of a ___ seed with a thin seed coat.

Answer 10

dicot

Question 11

Small opening in the surface of an ovule, through which the pollen tube penetrates; often visible as a small pore in the ripe seed = ___.

Answer 11

micropyle

Question 12

Scar on a seed marking the point of attachment to its seed vessel = ___.

Answer 12

hilum

Question 13

The dicot embryo consists of the ___, ___, and ___.

Answer 13

epicotyl, hypocotyl, radicle

Question 14

Embryonic root = ___.

Answer 14

radicle

Question 15

Portion of embryo between cotyledon attachment and radicle (between stem and root) = ___.

Answer 15

hypocotyl

Question 16

Develops into the shoot, and typically has embryonic leaves = ___.

Answer 16

epicotyl

Question 17

In a monocot seed, the cotyledon transfers food from the ___ to the ___.

Answer 17

endosperm, embryo

Question 18

In several monocot families, large amounts of ___ are present.

Answer 18

endosperm

Question 19

A corn kernel is an example of a ___ seed.

Answer 19

monocot

Question 20

One-seeded fruit in which the seed coat is fused to the pericarp = ___.

Answer 20

grain

Question 21

In corn, an extensive ___ occupies much of the seed. There is a small ___ with a single ___.

Answer 21

endosperm, embryo, cotyledon

Question 22

Sheath protecting a young shoot tip in a grass or cereal (monocots) = ___.

Answer 22

coleoptile

Question 23

Sheath protecting the root of a germinating grass or cereal grain (monocots) = ___.

Answer 23

coleorhiza

Question 24

Emergence of the radicle through the seed coat = seed ___.

Answer 24

germination

Question 25

Seed germination consists of the emergence of the ___ through the ___ ___.

Answer 25

radicle, seed coat

Question 26

Process of altering the seed coat to allow quicker water absorption and improve rates of germination = ___.

Answer 26

scarification

Question 27

Small seeds are buried ___, while bigger seeds are buried ___.

Answer 27

shallowly, deeper

Question 28

In dicot germination, the ___ elongates and breaks through the soil.

Answer 28

hypocotyl

Question 29

In monocots, the ___ emerges, protecting the ___ tip.

Answer 29

epicotyl