Plants are autotrophic
Why are plants able to serve as the base of food chains, but animals are not able to do so?
The plant species that we commonly call "aspen" is widespread in the northern hemisphere, and has leaves that commonly tremble in the wind. Which of the following is its correct scientific name? (Note: You should be able to determine this based solely upon the format of the name!)
the movement of a substance from a region of high concentration to a region of low concentration
Diffusion is defined as...
The chemical that is present in primary cell walls and which makes the primary wall pliable or "stretchable" is...
The movement of a large polar molecule across a cellular membrane from the side with a higher concentration is called...
Which of the following is "costly" to cells because it requires an expenditure of energy?
If Golgi body vesicles that have formed in the cytoplasm move to the plasma membrane and dump their contents to the outside, what occurred?
growth in plants is closed (or determinate) and localized.
When comparing growth in plants with growth in animals...
In a plant, the cell walls of adjacent cells are "glued" together by a region known as the...
The chemical that usually present in secondary cell walls and that makes the secondary wall hard and rigid is...
The cytoplasm of a plant cell is connected to cytoplasm of adjacent cells by little channels called...
The term "cell" (as used in biology) was coined by ______, who observed a piece of cork with a simple microscope.
The part of a cell wall that is formed after a cell has stopped growing in size is called the ______ wall.
In plant cells, the organelle in which the reactions of photosynthesis take place is the...
The organelle that serves as the "powerhouse" of the cell (where food is broken down to provide energy) is the...
Flagella, cilia, spindle fibers, and cell plate fibers are all made of ______ that aggregate together.
CO2 and O2
When a plant carries out photosynthesis, what two chemical compounds are taken in by the plant and used as reactants?
O2 and C6H12O6
What two chemical compounds are produced/made/given off as products of photosynthesis?
Sunlight or the Sun
what provides the energy that "drives" the reactions of photosynthesis? (In other words, where does the energy come from or originate?)
Cell wall, chloroplasts, and a vacuole
List three structures or features of a cell that, if present, would indicate to you that the cells were from a plant and not from an animal.
During RNA splicing, the non-coding regions that are removed from the molecule are called...
the enzymes present in the cell
The chemical reactions that take place in a plant cell will be determined by...
inherited traits are controlled by genes that occur in pairs
According to Mendel's Law of Unit Characters,
If an organism has 2 identical alleles (e.g., TT) for a genetic trait, it is said to be...
the electron transport chain
during aerobic respiration, the majority if the ATP molecules produced are made during the set of reactions called...
plants carry out photosynthesis
Plants (and not animals) are able to serve as the base of food chains because...
Priestley and Ingenhousz
Who used "bell jar" experiments to demonstrate that plants "revitalize" air, i.e, they carry out gas exchange?
NADPred and ATP
In photosynthesis, what compounds are produced in the light reactions and then are used to "drive" the dark reactions?
In C4 plants, the initial (i.e., first) fixation of CO2 (to form a C4 compound) occurs in...
respiration by all organisms (including both plants and animals) and combustion of fossil fuels
In the global carbon cycle, processes that add CO2 to the atmosphere include...
In a polypeptide chain, adjacent amino acids are linked together by special bonds called ______ bonds.
Suppose one strand of DNA molecule contains the base sequence GCT; the base sequence directly across from it in the other strand will be...
the folding of a protein helix onto itself to form a very specific 3-D shape is referred to as the ______ structure of the protein.
Suppose RNA is being made along a DNA molecule; if the DNA molecule contains the base sequence ATG, the corresponding base sequence of the RNA will be...
Aristole's mistaken belief that plants are "soil-eaters" was refuted by ____, who experimented with willows and water.
A piece/segment of a DNA molecule (or of a chromosome) that contains the code for 1 protein molecule is called a...
Sexual reproduction always involves a regular alternation between the processes of meiosis and...
Plants (such as cacti) that open their stomata and take in CO2 only at night carry out a special type of photosynthesis called...
List one example of each carbohydrate....
What type of chemical reaction takes place when monosaccharides are linked together to form a disaccharide or a polysaccharide?
What type of chemical reaction occurs to break apart a polysaccharide into its constitute monosaccharides?
move or migrate to the shady side of them.
When auxin interacts with light to cause bending of shoot, light causes auxin to...
What correctly describes the hormonal changes that take place in trees during the autumn, triggering the abscission of leaves...
To tell whether a plant has simple or compound leaves, one must note the presence and position of...
A gardener notices that the marigolds she planted in front of her prized mutant dwarf sweet peas are growing taller than she expected and are obscuring her view of the sweet peas. She can solve this problem and get her sweet peas to grow taller by spraying the sweet peas with...
evaporation of water from the leaves causes a suction which pulls water up through tracheids and vessel members
What usually causes water to move in a plant?
The "active" form of phytochrome (the form whose level/amount acts as a "switch" to trigger a change) is called....
from regions called sources to regions called sinks
What is the normal direction in the movement of food within a plant?
axillary buds on the stem will grow out to form branches as the auxin level in the stem decreases
Suppose a deer comes along and eats the shoot tip of a dicot plant that is growing with an unbranched stem. What is the likely result?
the length of the nighttime period (i.e., uninterrupted darkness)
When plants use phytochrome to determine what time of year it is, what does the phytochrome actually measure?
When insectivorous plants capture insects with their modified leaves, they use the insects primarily as a source of...
Sticking out of the trunk 2 meters above the ground
Suppose that the main axis or trunk of a pine tree increases in height by 20 centimeters per year. You pound a 9-inch nail part-way into the trunk at a height of 2 meters above the ground. so that 3 inches of the nail sticks out from the trunk. If you return to the tree 5 years later, where would you expect to find the nail?
In a woody stem, wood that contains living parenchyma cells and that functions in moving water is called...
A plant like cover that responds to photoperiod and blooms in the middle of the summer is called a _________ plant.
A root that begins its development from stem or leaf tissue (rather than another root) is called an __________ root.
The experiments of Charles & Francis Darwin, Peter Boysen-Jensen, and Frits Went led to the discovery of the first-known plant hormone,...
In a typical root, most of the water absorption occurs through epidermal outgrowths called root...
In a woody stem, water, minerals, and food all move sideways through lines of living cells called vascular...
The conversation of atmospheric nitrogen to a form that plants can use is called nitrogen....