Which of the following produce seeds that are enclosed in ovaries?
A.pine trees
B.ferns
C.mosses
D.fungi
E.none of the above
Question 3 of 50
What makes a plant "vascular"?
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Question 4 of 50
Which of the below describes cellulose (more than one may be correct)?
A. is a major component of the cell walls of mosses, ferns, conifers, and flowering plants
B. is a type of alkaloid
C. is a raw material used in phytosynthesis
D. is composed of a chain of glocose molecules
Question 5 of 50
Describe at least 3 features plants have in common with fungi and animals, while describing at least 2 ways that plants are different than fungi and animals.
Question 6 of 50
Both animal and plant cells contain .
Question 7 of 50
What are proteins? Be specific about what they are composed of and what the do.
Question 8 of 50
Which statement(s) is/are true about the nucleus of a plant cell?
A. movement of substances into and out of the nucleus is controlled by pores in the nuclear envelope
B. the nucleus usually contains one or more nucleoli
C. the nucleus contains linear chromosomes composed of DNA and protein
Question 9 of 50
What are the 4 phases during mitosis - in the correct order? ____, ____, ____,
Question 10 of 50
In plants, photosynthesis occurs in organelles called _____________
Question 11 of 50
Organelles called what convert energy stored in sugar into energy stored in ATP? ___________
Question 12 of 50
The DNA in the nucleus of a plant cell is found within threadlike structures called ____________
Question 13 of 50
Stacks of thylakoids in a chloroplast are called ________
Question 14 of 50
According to the _____ _____ model, cell membranes are composed of a double layer of phospholipids with embedded proteins.
Question 15 of 50
Name and describe the three types of plant cells.
Question 16 of 50
An unspecialized cell becomes specialized through the process of ________
Question 17 of 50
What are the 3 types of plant tissues and what are their main functions?
Question 18 of 50
Evaporation of water from plant leaves is called ________
Question 19 of 50
Mutually beneficial relationships between fungi and the roots of vascular plants are illustrated by:
A.epiphytes
B.mycorrhizae
C.thigmotropisms
D.xerophytes
Question 20 of 50
Which of the following store food?
A. corms
B. bulbs
C. tubers
Question 21 of 50 2.0 Points
Describe the structure and function of leaf veins.
Question 22 of 50 2.0 Points
Explain how the structure and modifications of plant roots equip them for their primary function in absorption of water and minerals from the soil?
Question 23 of 50 2.0 Points
What is the function of the xylem and phloem rays of a tree?
Question 24 of 50 2.0 Points
"Wood" consists of
A.primary phloem
B.secondary phloem
C.pith
D.cork
E.vascular and cork cambium
Question 25 of 50 2.0 Points
Bark consists of all plant tissues
A.external to the vascular cambium
B.internal to the vascular cambium
C.produced by the lateral meristems
D.produced by the procambium
Question 26 of 50 2.0 Points
Which of the following occurs when the trunk of a dicot tree develops a lean in response to wind or gravity?
A.compression wood develops on the lower side of the leaning trunk
B.compression wood develops on the upper side of the leaning trunk
C.tension wood develops on the lower side of the leaning trunk
D.tension wood develops on the upper side of the leaning trunk
E.reaction wood develops on both upper and lower sides of the trunk
Question 27 of 50 2.0 Points
Compare and contrast mitosis and meiosis.
Question 28 of 50 2.0 Points
Which of these statements is/are true?
A. In many plants, abscisic acid plays a role in the timing of germination.
B. Imbibition precedes germination.
C. At the start of germination, the radicle growths through the seed coat.
D. A monocot embryo is nourished by a large endosperm.
Question 29 of 50 2.0 Points
An arrangement in which the stamens, sepals, and petals of a flower attach to the receptacle below the ovary is called
A.inferior
B.half-inferior
C.superior
D.actinomorphic
E.zygomorphic
Question 30 of 50 2.0 Points
A nucleic acid is composed of a nitrogenous base along with
A.a sugar and an amino acid
B.a sugar and a phosphate group
C.a phosphate group and a fatty acid
D.a sugar and a fatty acid
E.an amino acid and a phosphate group
Question 31 of 50 2.0 Points
What are the first and second laws of thermodynamics?
Question 32 of 50
The three most important carriers of high-energy electrons for chemical reactions in living organisms are ______ , _______ , and _________ .
Question 33 of 50 2.0 Points
The only organisms that do not rely on photosynthesis are those known as ______.
Question 34 of 50 2.0 Points
The oxygen released in photosynthesis by algae and green plants comes from (pick all that are correct)
A. carbon dioxide
B. water
C. sugars
D. light
Question 35 of 50 2.0 Points
The closure of plant stomata in a C3 plant results in a reductions in _____ and _____ and an increase in _________ .
Question 36 of 50 2.0 Points
Anaerobic organisms carry out ______ and _______ , whereas aerobic oraganisms carry out ______ and ___________ .
Question 37 of 50 2.0 Points
One useful metabolic reaction that plants but not animals can carry out is
A.the conversion of amino acids into proteins
B.glycolysis
C.to metabolize fats to glycerol and acetyl CoA
D.to store energy as fat when extra organic molecules are available
E.to convert fatty acids into glucose
Question 38 of 50 2.0 Points
In nature, plants most frequently encounter oxygen deprivation
A.in winter
B.when their roots are flooded
C.in the hot, dry days of summer
D.when they are infected by aerobic bacteria
E.when they share a habitat with a large number of air-breathing animals
Question 39 of 50 2.0 Points
The spontaneous, passive movement of molecules down a concentration gradient is called ________.
Question 40 of 50 2.0 Points
What is osmosis?
Question 41 of 50 2.0 Points
What is the tension-cohesion theory?
Question 42 of 50 2.0 Points
An organic molecule that is typically produced in one part of a plant and influences the functioning of another part is called a ________ .
Question 43 of 50 2.0 Points
Fruit ripening and leaf abscission are promoted by
A.cytokinins
B.ethylene
C.IAA-oxidase
D.tropisms
E.none of the above
Question 44 of 50 2.0 Points
What is the "triple response"?
Question 45 of 50 2.0 Points
Maternal inheritance in plants occurs via genes carried on ______ and _______ .
Question 46 of 50 2.0 Points
An organism's phenotype depends on
A.its genotype
B.its environment
C.its genotype and its environment
D.neither its genotype or its environment
E.either its genotype or its environment, but not both
Question 47 of 50 2.0 Points
One chromosome of a homologous pair of chromosomes has alleles D and E, while its homologue has alleles d and e. If there is a single crossover between the D and E loci during the first meiotic division, the gametes produced will have which of the following genotypes?
A.DE, DE, de, de
B.De, De, dE, dE
C.DE, DE, De, dE
D.DE, de, De, dE
Question 48 of 50 2.0 Points
Why is the mechanism of DNA replication different for the two strands of the double helix?
Question 49 of 50 2.0 Points
The genetic code is
A.the same in all living organisms.
B.the same in almost all organisms; a few of the codons are different in some single-celled eukaryotes.
C.indentical in eukaryotes; indentical in prokaryotes but different from that of eukaryotes.
D.identical in all living organisms; virus have a different genetic code.
E.the same in almost all organisms; a few single-celled eukaryotes have a very different genetic code.
Question 50 of 50 2.0 Points
The process in which RNA is synthesized from a DNA template is called __________.
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