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Bio Reading Quiz- Chp. 26 & 30
Terms in this set (47)
Seed plants are ________.
Besides the seed, what other major structure diminishes a plant's reliance on water for reproduction?
In which of the following geological periods would gymnosperms dominate the landscape?
Which of the following structures widens the geographic range of a species and is an agent of dispersal?
FR: The Triassic Period was marked by the increase in number and variety of angiosperms. Insects also diversified enormously during the same period. Can you propose the reason or reasons that could foster coevolution?
Both pollination and herbivory contributed to diversity, with plants needing to attract some insects and repel others.
FR: What role did the adaptations of seed and pollen play in the development and expansion of seed plants?
Seeds and pollen allowed plants to reproduce in absence of water. This allowed them to expand their range onto dry land and to survive drought conditions.
AC: At what stage does the diploid zygote form?
Which of the following traits characterizes gymnosperms?
The plants carry exposed seeds on modified leaves.
Megasporocytes will eventually produce which of the following?
What is the ploidy of the following structures: gametophyte, seed, spore, sporophyte?
1n, 2n, 1n, 2n
In the northern forests of Siberia, a tall tree is most likely a:
FR: The Mediterranean landscape along the sea shore is dotted with pines and cypresses. The weather is not cold, and the trees grow at sea level. What evolutionary adaptation of conifers makes them suitable to the Mediterranean climate?
The trees are adapted to arid weather, and do not lose as much water due to transpiration as non-conifers.
FR: What are the four modern-day phyla of gymnosperms?
The four modern-day phyla of gymnosperms are Coniferophyta, Cycadophyta, Gingkophyta, and Gnetophyta.
Which of the following structures in a flower is not directly involved in reproduction?
Pollen grains develop in which structure?
In the course of double fertilization, one sperm cell fuses with the egg and the second one fuses with ________.
the polar nuclei of the center cell
Corn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and produces monosulcate pollen. It is most likely:
FR: What are the two structures that allow angiosperms to be the dominant form of plant life in most terrestrial ecosystems?
Angiosperms are successful because of flowers and fruit. These structures protect reproduction from variability in the environment.
Which of the following plant structures is not a defense against herbivory?
White and sweet-smelling flowers with abundant nectar are probably pollinated by
bees and butterflies
Abundant and powdery pollen produced by small, indistinct flowers is probably transported by:
Plants are a source of ________.
all of the above
Plant regions of continuous growth are made up of ________.
Which of the following is the major site of photosynthesis?
Which layers of the stem are made of parenchyma cells?
cortex and pith
Stem regions at which leaves are attached are called ________.
Which of the following cell types forms most of the inside of a plant?
Tracheids, vessel elements, sieve-tube cells, and companion cells are components of ________.
The primary growth of a plant is due to the action of the ________.
Which of the following is an example of secondary growth?
increase in thickness or girth
Secondary growth in stems is usually seen in ________.
Roots that enable a plant to grow on another plant are called ________.
The ________ forces selective uptake of minerals in the root.
Newly-formed root cells begin to form different cell types in the ________.
zone of maturation
The stalk of a leaf is known as the ________.
Leaflets are a characteristic of ________ leaves.
Cells of the ________ contain chloroplasts.
Which of the following is most likely to be found in a desert environment?
spines instead of leaves
AC: Which of the following statements is false?
Negative water potential draws water into the root hairs. Cohesion and adhesion draw water up the phloem. Transpiration draws water from the leaf.
When stomata open, what occurs?
Water vapor is lost to the external environment, increasing the rate of transpiration.
Which cells are responsible for the movement of photosynthates through a plant?
sieve-tube elements, companion cells
The main photoreceptor that triggers phototropism is a ________.
Phytochrome is a plant pigment protein that:
mediates morphological changes in response to red and far-red light
A mutant plant has roots that grow in all directions. Which of the following organelles would you expect to be missing in the cell?
After buying green bananas or unripe avocadoes, they can be kept in a brown bag to ripen. The hormone released by the fruit and trapped in the bag is probably:
A decrease in the level of which hormone releases seeds from dormancy?
A seedling germinating under a stone grows at an angle away from the stone and upward. This response to touch is called ________.
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