BIO 152 Exam 2 HUMAN ANATOMY AND
PHYSIOLOGY LATEST AND NEW VERSION 2025
100% SOLVED
All of the following produce pollen except:
- Angiosperms
-Gymnosperms
-Pine trees
-Mosses
-Grasses - -Mosses
Does the following contribute to secondary growth:
- The shoot apical meristem - No
Does the following contribute to secondary growth:
- The vascular cambium - Yes
Does the following contribute to secondary growth:
-Axillary buds - No
True/False: The shoot tip of a rapidly growing sunflower plant may be 1 foot off the ground and 2 feet
off the ground a week later. The change in height involves primary growth - True
True/False: The shoot tip of a rapidly growing sunflower plant may be 1 foot off the ground and 2 feet
off the ground a week later. The change in height involves the action of the plant hormone auxin - True
True/False: The shoot tip of a rapidly growing sunflower plant may be 1 foot off the ground and 2 feet
off the ground a week later. The change in height involves cell divisions in the lateral meristems - False
Which type of cell is dead at maturity? - Schlerenchyma, Vessels, and Tracheids (xylem transport cells)
Which of the following structures is not correctly matched with the meristem is produces?
-leaves by apical meristem
-root cap by apical meristem
-primary xylem by vascular cambium
-companion cells by vascular cambium
-All are correctly matched - -Primary xylem by vascular cambium
The driving force for movement of materials from source to sink in the phloem is most directly related
to: - pressure generated by the active accumulation of sucrose in sieve tube members
, What is the best reason for considering iron (Fe) to be an essential element for plants? - In the absence
of iron, a plant cannot complete its life cycle
Gametophytes are produced when: - a spore undergoes mitosis
T/F Only the sporophyte can produce spores - True
T/F Mitosis always occurs in both the sporophyte and the gametophyte - True
T/F The primary function of nutrients stored in a fruit is to attract animals for dispersal - True
T/F The alga Chara can be found in streams and other fresh bodies in Wisconsin. It is a charophyte and
therefor is an ancestor of modern day land plants - False- sister group
A fruit is: - A mature ovary
Which tissue makes up most of the wood of a tree? - Secondary xylem
In angiosperms, which of the following is most likely to be responsible for increasing genetic exchange
between plants and a single species? - The evolution of animal pollinated flowers
T/F The Darwins' experiment demonstrated that bending towards the light in coleoptiles can be blocked
by covering the coleoptile tip - True
T/F In phototropism, changes in strength of the bonds between cell wall molecules leads to differences
in rates of cell elongation on the lighted vs shaded sides of the coleoptile - True
Experiments on the positive phototropic response of plants indicate that: - Auxin can move to the shady
(dark) side of the stem
Stomata: - open to allow gas exchange and close to decrease water loss
Arrange the following five events in order to correctly explain the flow of sugars in the phloem. Note:
not all steps are included
1- Source cells produce sugar
2-Water exits the source as water potential becomes more positive
3-Water diffuses into the sieve tubes following the water potential gradient
4-Sugars are actively transported into the sieve tubes
5-Sugars are used up at the sink - 1-4-3-5-2
In seed plants, which of the following is part of a pollen grain and has a function most like that of the
seed coat - Sporopollenin
Phytochromes are proteins that help link plant growth and development to the light environment.
Which statement is not true about their functions or modes of action?
-They help plants sense blue and green light
-They help link the circadian rhythm of plants to the day/night cycles
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