Bio 1407: Exam 3 Ch. 29, 30, 40, 35, 36 Questions With
Complete Solutions
"Germination" can refer to 2 different events. Correct Answers
the growth of the pollen tube into the embryo sac, and the
growth of the seedling from the seed
"Germination" can refer to 2 different events... Correct Answers
the growth of the pollen tube into the embryo sac, & the growth
of the seedling from the seed
A birdhouse is nailed into a tree 6ft. up from the ground. If the
tree grows about 2 ft. taller each year, how far from the ground
will the birdhouse be 25 years later? Correct Answers 6 feet
A botanist examines 2 plants. Plant A has large colorful petals;
plant B has extremely tiny white flowers. Which one is most
likely animal pollinated? Correct Answers Plant A
A bryologist (a scientist that studies mosses, & their allies) gives
a lecture to your biology class. In her lecture, she makes a
reference to fern reproduction. She says, "Fern spores germinate
into ___." Correct Answers gametophytes, which are often
heart-shaped and have rhizoids that anchor the fern to the
substrate
A fruit-bearing dioecious flower would have... Correct Answers
a gynoecium
A large watermelon fruit is very heavy and contains nearly 90%
water. Since the skin of a watermelon is thick and lacks stomata,
,transpiration does not "pull" water into the watermelon. So, how
does all that water get into the fruit? Correct Answers water is
transported in the phloem along w/ the sugars while they are
being translocated into the fruit
A plant exposed to a toxin that ABA receptor sites in the plasma
membrane. What is the likely consequence of this exposure?
Correct Answers The plant will lose excess water through
transpiration & suffer dehydration
A plant will usually wilt when which component of water
potential reaches 0 MPa? Correct Answers turgor pressure
A researcher is investigating the morphology of complete
flowers. Which of the following organs must his flowers
contain? Correct Answers calyx, corolla, androecium, &
gynoecium
A seed that lands in the forest soil is homozygous mutant for the
CONSTANS (CO) gene, and as a result does not produce any
functional CONSTANS protein. What do you predict will
happen during the development of this seed? Correct Answers
It will germinate and grow vegetatively. If it is from a
photoperiodic species, it will fail to produce flowers.
A stem that cannot increase in diameter is lacking what type of
tissue? Correct Answers vascular cambium
A waxy cuticle prevents desiccation. What is the cost of this
adaptation? Correct Answers Reduced gas permeability
, All of the following describe the characteristics of sclerenchyma
cells, except which? Correct Answers their function is
primarily to transport oxygen & carbon dioxide throughout the
leaf
All of the following statements about ferns are correct except
Correct Answers the gametophyte is a conspicuous generation
Antipodals & Synergids are... Correct Answers produced in the
female gametophyte
At a certain point in the flowering process, shoots become
committed to making a flower. This is called... Correct Answers
floral determination
Based on the number of species, the most successful extant
phylum of plants is the... Correct Answers Anthophyta
Based on the outcome for plants, a monkey eating a banana is
a... Correct Answers disperser
Bryophytes, like ferns and certain other tracheophyte plants,
require Correct Answers water to reproduce sexually
Children in the Southeastern US play w/ red maple fruits (Acer
rubrum). The fruits are tossed in the air & spin back to the
ground, acting like small helicopters. Which part of the fruit
allows for this? Correct Answers the pericarp
Compound leaves... Correct Answers have a blade divided into
leaflets
Complete Solutions
"Germination" can refer to 2 different events. Correct Answers
the growth of the pollen tube into the embryo sac, and the
growth of the seedling from the seed
"Germination" can refer to 2 different events... Correct Answers
the growth of the pollen tube into the embryo sac, & the growth
of the seedling from the seed
A birdhouse is nailed into a tree 6ft. up from the ground. If the
tree grows about 2 ft. taller each year, how far from the ground
will the birdhouse be 25 years later? Correct Answers 6 feet
A botanist examines 2 plants. Plant A has large colorful petals;
plant B has extremely tiny white flowers. Which one is most
likely animal pollinated? Correct Answers Plant A
A bryologist (a scientist that studies mosses, & their allies) gives
a lecture to your biology class. In her lecture, she makes a
reference to fern reproduction. She says, "Fern spores germinate
into ___." Correct Answers gametophytes, which are often
heart-shaped and have rhizoids that anchor the fern to the
substrate
A fruit-bearing dioecious flower would have... Correct Answers
a gynoecium
A large watermelon fruit is very heavy and contains nearly 90%
water. Since the skin of a watermelon is thick and lacks stomata,
,transpiration does not "pull" water into the watermelon. So, how
does all that water get into the fruit? Correct Answers water is
transported in the phloem along w/ the sugars while they are
being translocated into the fruit
A plant exposed to a toxin that ABA receptor sites in the plasma
membrane. What is the likely consequence of this exposure?
Correct Answers The plant will lose excess water through
transpiration & suffer dehydration
A plant will usually wilt when which component of water
potential reaches 0 MPa? Correct Answers turgor pressure
A researcher is investigating the morphology of complete
flowers. Which of the following organs must his flowers
contain? Correct Answers calyx, corolla, androecium, &
gynoecium
A seed that lands in the forest soil is homozygous mutant for the
CONSTANS (CO) gene, and as a result does not produce any
functional CONSTANS protein. What do you predict will
happen during the development of this seed? Correct Answers
It will germinate and grow vegetatively. If it is from a
photoperiodic species, it will fail to produce flowers.
A stem that cannot increase in diameter is lacking what type of
tissue? Correct Answers vascular cambium
A waxy cuticle prevents desiccation. What is the cost of this
adaptation? Correct Answers Reduced gas permeability
, All of the following describe the characteristics of sclerenchyma
cells, except which? Correct Answers their function is
primarily to transport oxygen & carbon dioxide throughout the
leaf
All of the following statements about ferns are correct except
Correct Answers the gametophyte is a conspicuous generation
Antipodals & Synergids are... Correct Answers produced in the
female gametophyte
At a certain point in the flowering process, shoots become
committed to making a flower. This is called... Correct Answers
floral determination
Based on the number of species, the most successful extant
phylum of plants is the... Correct Answers Anthophyta
Based on the outcome for plants, a monkey eating a banana is
a... Correct Answers disperser
Bryophytes, like ferns and certain other tracheophyte plants,
require Correct Answers water to reproduce sexually
Children in the Southeastern US play w/ red maple fruits (Acer
rubrum). The fruits are tossed in the air & spin back to the
ground, acting like small helicopters. Which part of the fruit
allows for this? Correct Answers the pericarp
Compound leaves... Correct Answers have a blade divided into
leaflets
