Homework Answers
Solutions:
23. Option(c) Xylem with lignin
Explanation:
*Green algae are closely related to plants on the basis of several characters:
*Both of their chloroplast structure is same containing both chlorophyll a & chlorophyll b
*Their chloroplasts are similar in structure and function.
*Their chloroplasts synthesize starch as a storage product.
*Plants possess vascular tissues like xylem and phloem (vascular tissues are specialized for transporting nutrients and water).
*In plants, lignin in xylem provides mechanical support for the plants . In green algae, vascular tissues are not necessary since the entire body is in contact with the water and the water simply enters the algae.
24. Option (a) palisade parenchyma (mesophyll) cells
Explanation:
*Mesophyll is the internal ground tissue located between the two epidermal cell layers of leaf and is composed of two kinds of tissue: the palisade parenchyma and the spongy parenchyma.
*Palisade parenchyma cells help in photosynthesis and contain more chloroplasts than the cells of spongy parenchyma.
*Spongy parenchyma cells allow exchange of gases like Carbon dioxide required for photosynthesis.
*Companion cells are found in the phloem of plants. It regulates the activity of the adjacent sieve element and take part in loading and unloading of sugar into the sieve element.
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23. Which of the following is not shared by both green algae and plants? a. chlorophylls...
Draw a phylogeny of the plants that includes the following taxa: Green algae Liverworts Mosses Hornworts...
Draw a phylogeny of the plants that includes the following taxa: Green algae Liverworts Mosses Hornworts Lycophytes Ferns & horsetails Gymnosperm Angiosperm And the following adaptations: Sporophyte Cuticle Stem cells Xylem & phloem Lignin Seeds Flowers Lastly, indicate which of the taxa are classified as, non-vascular, vascular, bryophytes, seed, and flowering plants.
Land plants are distinguished from charophyte green algae by A. having chloroplasts B. performing photosynthesis C....
Land plants are distinguished from charophyte green algae by A. having chloroplasts B. performing photosynthesis C. having relatively waterproof skin d. all of the above E. none of the above
48. The thick secondary cell walls of sclerenchyma cells are chemically distinct from parenchyma and collenchyma...
48. The thick secondary cell walls of sclerenchyma cells are chemically distinct from parenchyma and collenchyma cells. Sclerenchyma cells contain all of the following EXCEPT a. lignin. b. cellulose c. hemicellulose d. pectin e. dextrin 49. Which of the following contains dissolved sugars? a. Xylem b. Phloem c. Stoma d. Mesophyll e. Stipules 50. Insectivorous plants: a. typically grow in nutrient-rich soil enhance a poor supply of CO2 through capturing prey c. use modified leaves to trap their prey d....
Which of these cells in a plant are dead at maturity? Choose all that apply. A....
Which of these cells in a plant are dead at maturity? Choose all that apply. A. Phloem fibers B. Guard cells C. endodermis D. Companion cells E. Palisade mesophyll cells F. Sieve tube elements G. Pericycle cells H. Xylem fibers I. Xylem vessel elements
Land plants: CA. Share a common ancestor with green algae - U B. Are descended from...
Land plants: CA. Share a common ancestor with green algae - U B. Are descended from green algae C. Have chloroplasts as do most green algae D. A and C E. B and C
please choose the right answer Question 36 You decide green algae should be classified as plants....
please choose the right answer
Question 36 You decide green algae should be classified as plants. Which of the following is most likely NOT a reason why you would do this? a. Two of these are not reasons to call algae plants. b. They have genes similar to genes in land plants. c. They are single-celled organisms. d. They have cellulose in their cell walls. e. They have chlorophyll.
Photosynthesis and Chloroplasts You will read that only plants, algae, and some bacteria are photosynthetic. There...
Photosynthesis and Chloroplasts You will read that only plants, algae, and some bacteria are photosynthetic. There is an exception to this, however. One species of sea slug has found a way to steal chloroplasts, store them in glands lining its digestive tract, and live on the sugar that is produced (Milius, 2010). The sea slug has even commandeered the genes to help repair these chloroplasts to keep them working for 9 months—longer than the algae would (Fang, 2015)! What if...
Which of the following statement is true about C3 and C4 plants? Multiple Choice A C3...
Which of the following statement is true about C3 and C4 plants? Multiple Choice A C3 plants are more successful in hot climates than C4 plants. B In C4 cells, CO2 is fixed at night to decrease water loss.C C3 plants deliver CO2 to the Calvin cycle using bundle sheath cells sheltered from leaf air spaces. D In C3 plants, O2 competes with CO2 for the active site of RuBP carboxylase. E C3 plants have chloroplasts in the both the...
1. Red algae are A B. C. protists plants fungi animals prokaryotes D. Brown algae area...
1. Red algae are A B. C. protists plants fungi animals prokaryotes D. Brown algae area A. B. C. protists plants fungi animals prokaryotes E. gave rise to the entire terrestrial plant A single species of freshwater lineage. A. B. C. red algae brown algae green algae fungus prokaryote D. E. Green algae split into 2 clades: A. B. c. D. chromalveolata and stramenopila rhizaria and cercozoa alveolata and stramenopila excavata and opisthokonta chlorophytes and charophytes 5. The green algae...
Question 1 1) Embryophytes are 1. Land Plants 2. phylogenetically one lineage of green algae 3....
Question 1 1) Embryophytes are 1. Land Plants 2. phylogenetically one lineage of green algae 3. a non-monophyletic group 4. sister taxa a to Chlorophytes 5. plants that nurture a multicelled embryo inside the maternal tissue A) 1, 2 & 5 B) 1,3,& 4 C) 1, 2, 4. & 5 D) 2.3.& 4 E) All of the above Question 2 1 pts 2) Embryophytes and Charophytes and united by which shard features? 1. Rings of cellulose-synthesizing proteins 2. Structure of...
48. The thick secondary cell walls of sclerenchyma cells are chemically distinct from parenchyma and collenchyma cells. Sclerenchyma cells contain all of the following EXCEPT a. lignin. b. cellulose c. hemicellulose d. pectin e. dextrin 49. Which of the following contains dissolved sugars? a. Xylem b. Phloem c. Stoma d. Mesophyll e. Stipules 50. Insectivorous plants: a. typically grow in nutrient-rich soil enhance a poor supply of CO2 through capturing prey c. use modified leaves to trap their prey d....
Land plants: CA. Share a common ancestor with green algae - U B. Are descended from green algae C. Have chloroplasts as do most green algae D. A and C E. B and C
please choose the right answer
Question 36 You decide green algae should be classified as plants. Which of the following is most likely NOT a reason why you would do this? a. Two of these are not reasons to call algae plants. b. They have genes similar to genes in land plants. c. They are single-celled organisms. d. They have cellulose in their cell walls. e. They have chlorophyll.
1. Red algae are A B. C. protists plants fungi animals prokaryotes D. Brown algae area A. B. C. protists plants fungi animals prokaryotes E. gave rise to the entire terrestrial plant A single species of freshwater lineage. A. B. C. red algae brown algae green algae fungus prokaryote D. E. Green algae split into 2 clades: A. B. c. D. chromalveolata and stramenopila rhizaria and cercozoa alveolata and stramenopila excavata and opisthokonta chlorophytes and charophytes 5. The green algae...
Question 1 1) Embryophytes are 1. Land Plants 2. phylogenetically one lineage of green algae 3. a non-monophyletic group 4. sister taxa a to Chlorophytes 5. plants that nurture a multicelled embryo inside the maternal tissue A) 1, 2 & 5 B) 1,3,& 4 C) 1, 2, 4. & 5 D) 2.3.& 4 E) All of the above Question 2 1 pts 2) Embryophytes and Charophytes and united by which shard features? 1. Rings of cellulose-synthesizing proteins 2. Structure of...
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