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Biology: Concepts and Applications

Cecie Starr, Christine A. Evers, Lisa Starr

Chapter 27

Plant Reproduction and Development - all with Video Answers

Educators

Chapter Questions

00:42

Problem 1

A flower's ___ has one or more ovaries in which eggs develop, fertilization occurs, and seeds mature.
a. pollen sac
b. carpel
c. receptacle
d. sepal

Leah Lampen
Leah Lampen
Numerade Educator
03:33

Problem 2

Name one reward that a pollinator may receive in return for a visit to a flower of a coevolved plant.

Leah Lampen
Leah Lampen
Numerade Educator
01:55

Problem 3

Meiosis of cells in pollen sacs forms haploid _____,
a. megaspores
b. microspores
c. stamens
d. sporophytes

Dennis Howard
Dennis Howard
Numerade Educator
01:18

Problem 4

Meiosis in an ovule produces ____ megaspores.
a. two
b. four
c. six
d. eight

Leah Lampen
Leah Lampen
Numerade Educator
01:27

Problem 5

Seeds are mature _____ fruits are mature ____.
a. ovaries; ovules
b. ovules; stamens
c. ovules; ovaries
d. stamens; ovaries

Prashant Bana
Prashant Bana
Numerade Educator
01:38

Problem 6

The seed coat forms from the ____.
a. integuments
b. coleoptile
c. endosperm
d. sepals

Dennis Howard
Dennis Howard
Numerade Educator
02:24

Problem 7

A new plant forms from a stem that broke off of the parent plant. This is an example of ___>
a. parthenogenesis
b. exocytosis
c. vegetative reproduction
d. nodal growth

Leah Lampen
Leah Lampen
Numerade Educator
01:23

Problem 8

Cotyledons develop as part of ____.
a. carpels
b. accessory fruits
c. embryo sporophytes
d. petioles

Leah Lampen
Leah Lampen
Numerade Educator
03:21

Problem 9

Plant hormones _____.
a. may have multiple effects
b. are active in developing plant embryos
c. are active in adult plants
d. all of the above

Leah Lampen
Leah Lampen
Numerade Educator
03:37

Problem 10

_______ is the stimulus for phototropism.
a. Red light
b. Far-red light
c. Green light
d. Blue light

Leah Lampen
Leah Lampen
Numerade Educator
01:19

Problem 11

Sunlight resets biological clocks in plants by activating and inactivating ____.
a. phototropins
b. phytochromes
c. photoperiodisms
d. far-red light

Leah Lampen
Leah Lampen
Numerade Educator
03:09

Problem 12

Solar tracking is similar to ______.
a. phototropism
b. gravitropism
c. photoperiodism
d. thigmotropism

Leah Lampen
Leah Lampen
Numerade Educator
01:11

Problem 13

In some plants, flowering is a ____ response.
a. phototropic
b. gravitropic
c. photoperiodic
d. thigmotropic

Joanna Quigley
Joanna Quigley
Numerade Educator
03:22

Problem 14

Match the observation with the hormone..
____ethylene
____ cytokinin
____ auxin
____gibberellin
____ abscisic acid
a. Your cabbage plants bolt (they form elongated flowering stalks)
b. The philodendron in your room is leaning toward the window.
c. The last of your apples is getting really mushy.
d. The seeds of your roommate's marijuana plant do not germinate no matter what he does to them.
e. Lateral buds on your Ficus plant are sprouting branch shoots.

Leah Lampen
Leah Lampen
Numerade Educator
02:45

Problem 15

Match the terms with the most suitable description.
______ovule
______receptacle
______ double fertilization
______anther
______carpel
______mature female gametophyte
______mature male gametophyte
a. pollen tube together with its contents
b. embryo sac of seven cells, one with two nuclei
c. starts out as cell mass in ovary; may become a seed
d. stigma, style, and ovary
e. pollen sacs inside
f. base of floral shoot
g. formation of zygote and first cell of endosperm

Leah Lampen
Leah Lampen
Numerade Educator