Homework Answers
1. Option e: Parenchyma cells may continue the meristematic activity. Parenchyma is a live-cell and function to perform photosynthesis, storage and make the live ground tissue in the vascular system. Fiber cells are dead at maturity and provide support to the plant. Collenchyma, tracheids also formed dead tissues. Though companion cells are alive they lose the integration of nucleus at later stages. So, other options are wrong.
2. Option b: Collenchyma provides additional support to stems and leaves. Vessels elements ( distinctively found in angiosperms) are water-conducting cells in xylem (made up of xylem tracheids and vessel elements) also called trachea. Plant fiber is made up of cellulose, lignins, chitins, pectins, etc. they provide support plants. Companion cells are found associated with the phloem.
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33. Which of the following cell types will reform an apical meristem if it is cut...
1) Which of the following is correct? A) The earliest forms of cellular life were unicellular....
1) Which of the following is correct? A) The earliest forms of cellular life were unicellular. celled organisms cannot carry out all the functions of life by themseh C) Tissues are composed of specialized organs DI Most cells of multicellular organisms such as plants are not highly specialized E) The organs of flowering plants include roots, stems, and leaves ar organisms such as plants are not highly specialized 2) Which of the following is not an area of active cell...
questions18-27 18. The is a primary meristem that produces parenchyma cells of the cortex. a) procambium...
questions18-27
18. The is a primary meristem that produces parenchyma cells of the cortex. a) procambium b) ground meristem c) protoderm d) phelloderm e) pericycle 19. Which of the following statements about monocot stems is true? a) They have no vascular cambium b) Their vascular bundles are arranged in a ring e) Most of them are woody d) They have a definite cortex and pith c) Their stems generally have conspicuous cork. 20. Older, nonfunctioning xylem tissue in a tree...
Which of the following are flattened stems specialized for photosynthesis? They are found in plant that...
Which of the following are flattened stems specialized for photosynthesis? They are found in plant that live in very dry places. a. rhizomes b. runners d. cladophylls c. tubers e. bracts 19. Which of the following synthesizes proteins for the cell type that transports food? a. sclerenchyma b. parenchyma d. companion cell c. vessel element e. Sieve tube 20. Plants with a dominant sporophyte are successful on land because a. their sporophytes produce gametes that don't dry out in terrestrial...
25. Which of the following is found in the rigid cell walls of a tracheid cell?...
25. Which of the following is found in the rigid cell walls of a tracheid cell? a. cellulose b. lignin d. both a and b c. starch e. both b and c 26. Which of the following is the microgametophyte of bryophytes? a. pollen b. thallus d. sorus c. embryo sac e. none of the above occurs due to the action of apical meristems. a. Primary growth b. Gamete production d. Spore production c. Secondary growth e. Tertiary growth 27.
question#38 31. Which of the following is corransported with Na' in the apical membrane of produ...
question#38
31. Which of the following is corransported with Na' in the apical membrane of produ cells of the kidney! Curea c. glucose b. K d. choline 32. To calculate the transport maximum for substance X wil need to know the GFR and the a. rate of secretion of substance X b. filtered load of substance X c. plasma concentration of substance X d. renal threshold of substance X c. filtration fraction of substance X True/False Label the following statements...
Question 33 (1 point) Which of the following is the most common cause of cell injury?...
Question 33 (1 point) Which of the following is the most common cause of cell injury? a) Immunologic reactions b) Genetic derangements c) Hypoxia d) Chemical and drugs Question 34 (1 point) Which of the following organelles are associated with sorting, modifying and packaging macromolecules? a) Ribosomes b) Golgi Apparatus c) Mitochondria d) Rough endoplasmic reticulum
Which of the following cell types does NOT engulf and degrade pathogens? a. macrophages b. B...
Which of the following cell types does NOT engulf and degrade pathogens? a. macrophages b. B cells c. dendritic cells d. neutrophils e. T cells
33. Which of the following statement is false: a) most mutations are corrected b) scientists are...
33. Which of the following statement is false: a) most mutations are corrected b) scientists are concerned when changes go undetected by repair mechanisms c) apoptosis is an abnormal process d) neoplasma is not synonymous with cancer 34. Any substance that can induce a heritable change of the genotype in a cell as a consequence of alterations or loss of genes or chromosones can be referred to as a: a) Mutagen b) Genotoxic Carcinogen c) Protoncogene d) Metabolite 31. The...
39. Which of the following types of cell suppress the immune system? A) Neutrophils B) Macrophages...
39. Which of the following types of cell suppress the immune system? A) Neutrophils B) Macrophages C) Regulatory cell D)Plasma cell 28. Scientists rely on which of the following to provide critical feedback when revising scientific explanation? A) Null Hypothesis B) Dogma C) Opinion D) Peer review 29.List function of integumentary system A. Protect the body B. Help regulate body temperature C.Excretions of waste D.Helps make vitamin D 26. Which of the following pathway best explain the expected flow of...
33, Addition of an acid to one of the following substances will lead to the formation of a gas. Which one? a) Caco,...
33, Addition of an acid to one of the following substances will lead to the formation of a gas. Which one? a) Caco, b) Car(OH) ) NaS0 ) Ba0 e)none of these 34, What is the shorthand notation for the electronic configuration of vanadi um a) [Arj4s'3db) [ArJ4s 3d (Arj3d' d) (Caj4s'3d e) none of these 35·The relationship between ΔE. AH, p and V is: e) none of these 36. Compounds of three of the following elements are very poisonous....
1) Which of the following is correct? A) The earliest forms of cellular life were unicellular. celled organisms cannot carry out all the functions of life by themseh C) Tissues are composed of specialized organs DI Most cells of multicellular organisms such as plants are not highly specialized E) The organs of flowering plants include roots, stems, and leaves ar organisms such as plants are not highly specialized 2) Which of the following is not an area of active cell...
questions18-27
18. The is a primary meristem that produces parenchyma cells of the cortex. a) procambium b) ground meristem c) protoderm d) phelloderm e) pericycle 19. Which of the following statements about monocot stems is true? a) They have no vascular cambium b) Their vascular bundles are arranged in a ring e) Most of them are woody d) They have a definite cortex and pith c) Their stems generally have conspicuous cork. 20. Older, nonfunctioning xylem tissue in a tree...
Which of the following are flattened stems specialized for photosynthesis? They are found in plant that live in very dry places. a. rhizomes b. runners d. cladophylls c. tubers e. bracts 19. Which of the following synthesizes proteins for the cell type that transports food? a. sclerenchyma b. parenchyma d. companion cell c. vessel element e. Sieve tube 20. Plants with a dominant sporophyte are successful on land because a. their sporophytes produce gametes that don't dry out in terrestrial...
25. Which of the following is found in the rigid cell walls of a tracheid cell? a. cellulose b. lignin d. both a and b c. starch e. both b and c 26. Which of the following is the microgametophyte of bryophytes? a. pollen b. thallus d. sorus c. embryo sac e. none of the above occurs due to the action of apical meristems. a. Primary growth b. Gamete production d. Spore production c. Secondary growth e. Tertiary growth 27.
question#38
31. Which of the following is corransported with Na' in the apical membrane of produ cells of the kidney! Curea c. glucose b. K d. choline 32. To calculate the transport maximum for substance X wil need to know the GFR and the a. rate of secretion of substance X b. filtered load of substance X c. plasma concentration of substance X d. renal threshold of substance X c. filtration fraction of substance X True/False Label the following statements...
Question 33 (1 point) Which of the following is the most common cause of cell injury? a) Immunologic reactions b) Genetic derangements c) Hypoxia d) Chemical and drugs Question 34 (1 point) Which of the following organelles are associated with sorting, modifying and packaging macromolecules? a) Ribosomes b) Golgi Apparatus c) Mitochondria d) Rough endoplasmic reticulum
33. Which of the following statement is false: a) most mutations are corrected b) scientists are concerned when changes go undetected by repair mechanisms c) apoptosis is an abnormal process d) neoplasma is not synonymous with cancer 34. Any substance that can induce a heritable change of the genotype in a cell as a consequence of alterations or loss of genes or chromosones can be referred to as a: a) Mutagen b) Genotoxic Carcinogen c) Protoncogene d) Metabolite 31. The...
33, Addition of an acid to one of the following substances will lead to the formation of a gas. Which one? a) Caco, b) Car(OH) ) NaS0 ) Ba0 e)none of these 34, What is the shorthand notation for the electronic configuration of vanadi um a) [Arj4s'3db) [ArJ4s 3d (Arj3d' d) (Caj4s'3d e) none of these 35·The relationship between ΔE. AH, p and V is: e) none of these 36. Compounds of three of the following elements are very poisonous....
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