Unit 2 Quiz Answers WORD

This figure summarises the life cycle of a seed plant. The blue circles named A and B represent the sexually mature individual of each phase of the life cycle. 1) What is this life cycle called? 2) Plant B is in the diploid phase. What is another name for this plant? 3) If A is the haploid phase, in which phase would you find sepals? Write just the letter of the individual corresponding to the correct phase  4) If B is the haploid phase, in which phase would you find synergids? Write just the letter of the individual corresponding to the correct phase 5) If B is the diploid phase, in which phase would you find the nucellus? Write just the letter of the individual corresponding to the correct phase 6) If A is the diploid phase, in which phase would you find the sperm cells? Write just the letter of the individual corresponding to the correct phase 7) If A is the diploid phase, in which phase would you find selection on flower colour? Write just the letter of the individual corresponding…

Identify the floral characteristics of Citrofortunella microcarpa (calamansi): Aestivation of calyx- ______ Aestivation of corolla- _______ Number of carpels- ____ spiral or whorled- ______ Form/type of ovules- ______

9 (a) FIGURE 9A shows the structure of Polytrichum sp. D FIGURE 9A (i) Life cycle of Polytrichum sp. shows an alteration of generations. Identify generation C and D. (ii) Based on alternation of generations, give TWO differences between Polytrichum sp. and angiosperms . (iii) State whether D generation of Polytrichum sp. is male or female. Give ONE reason to support your answer.

True or false. 1.) The ovary becomes the seed when matures 2.) Pollination is the transfer of pollen grains from the stamen to the stigma 3.) Double fertilization in plants produces two zygotes. 4.) The anther contains the female sex cells of the plants. 5.) Epigeal germination occurs when the cotyledon remains below the ground.

Give the PLOIDY of the following (ex: haploid, diploid, etc…)1. oospore2. prothallus 3. androcyte4. archegonium5. endosperm6. microsporocyte7. antherozoids 8. oosphere9. megaspore10. protenema

VOLTE1¹67 3:41fb. : +91 97532 46070 21 जुलाई, शाम 5:38 → Class XII 1. Draw a 2. Explain 7. Seed (B) Fruit Jawahar Navodaya labelled Subject: Biology laya Vidyalaya Buranabad ujjain -2 diagram of Embryo Insects. sac 2and microsporagium. Megasporogeneris. Pollen grains Embryo Development. by Pollination. 3. Draw a labelled diagram of female reproductory system. 4. List hormones of pregnancy and their role. 5. Project Report (Topic given) 6. Make a Chart / Model from any, subject or topic. from Chapter 2 and 3. on Do survey diffcunt pollinating Agent within your Economic valuu. ⇓ C. 4. O ט

Bougainvillea, Sunflower, and hibiscus are Insertion of flower (if solitary) or insertion of inflorescence?

Microsporogenesis, Callose wall Diploid (2n) nucleus Haploid (1n) nuclei Microspores Meiosis I Meiosis ir Microsporocyte Tetrad Vegetative nucleus Microspore nucleus Vacuole Generative cell Yegetative nucleus Pollen Mitosis I Pollen Mitosis II Sperm 'cells Released Polarised Bicellular Tricellular microspore microspore pollen pollen Microgametogenesis

The male gametophyte of the moss looks identical to the female from the naked eye, but the photo below (I.s. at 4x and then at 40 x) shows that the tip contains the structures where male gametes are produced.

Please answer question 4

1. anticlinal, periclinal, etc.2. apical-cell, histogen, tunica-corpus, etc.3. anticlinal, periclinal, etc.

The best answer describing angiosperm fertilization is: O a single sperm fertilizes an egg a single sperm fertilizes the antipodal cells O a single sperm fuses with the two polar nuclei one sperm fertilizes the egg, one fuses with the two polar nuclei to create 3N tissue one sperm fertilizes the egg, one fuses with the antipodal cells to create 3N tissue

8. Label the pollen sac and pollen grains in Figure 5. below. Figure 5. Lilium mature anther c.s. Photo by Carolyn Alling 9. How does the mature anther differ from the immature one with pollen tetrads?. Examine the pollen grains, or immature male gametophytes. Find a pollen grain with two nuclei. The pollen grain is not a binucleate cell, but rather a two-celled structure. The larger cell is the vegetative cell, or tube cell. The smaller cell, which floats freely in the cytoplasm of the tube cell, is the lens-shaped generative cell (see text Figure 19-16, page 468). If you look carefully, you will be able to distinguish the protoplast of the generative cell from that of the tube cell. 10. Find a pollen grain in Figure 6 below in which you can clearly see both the generative and tube cells and label them. Figure 6. Lilium mature anther c.s. 7 128 Photo by Carolyn Alling

1. anticlinal, periclinal, etc.2. apical-cell, histogen, tunica-corpus, etc.3. anticlinal, periclinal, etc.4. why?

In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as _________ A) Dichogamy B) Herpogamy C) Haterogamy monogamy D) None of these

1.a.) In "alternation of generations" or the haplo-diplontic life cycle, what is the name of the cell that makes the male spore? 1.b.) Compared to mosses and liverworts, gymnosperms have fewer cells in the ______ stage

Some pollen grains will not germinate in vitro. They will germinate only on compatible stigma.  Why?

8.a)What is the main driving force for the movement of water in plants? e)State four benefits of asexual reproduction in plants.

PLEASE ANSWER NUMBER 1,2,3, and 4 QUESTIONS: (with brief explanation only)   1. A difference between seedless vascular plants and plants with seeds is that?   A. the gametophyte generation is conspicuous in the seedless plants, whereas the sporophyte is dominant in the seeded plants. B. the spore is the agent of dispersal in the first, whereas the seed functions in dispersal in the second. C. the gametophyte is photoautotrophic in seedless plants but dependent on the sporophyte generation in the other group. D. the embryo is unprotected in the seedless plants but retained within the female reproductive structure in the other group.   2. Biologist hypothesize that the first land plants had a low, sprawling growth habitat. Which of the following is part of the logic behind that theory?   A. The low sprawling growth gave them greater surface area exposed to light for photosynthesis. B. This was prior to plants’ development of adaptations to defend themselves from predators, so by growing…

Lab 5: Land Plants Traits 8. Produce flowers in whorls for reproduction 9. Can be Monoecious or Dioecious 1. Non-vascular land plant Vascular land plant 2. 10. One cotyledon and multiples of 3 petals or 3. Seed-bearing sepals 4. Alternation of generations Dominant 1n gametophyte Dominant 2n sporophyte 11. Two cotyledons multiples of 4 or 5 petals or 5. sepals 6. 12. Parallel leave venation and scattered vascular 7. Produce strobili within cones for tissue reproduction 13. Pennate leave venation and ringed vascular tissue Traits Таха 1 2 4 6 7 8 9 10 11 12 13 Outgroup Phylum Bryophyta Phylum Pterophyta Phylum Coniferophyta Phylum Cycadophyta Class Monocotyledonae Class Eudicotyledonae Labels: Gymnosperm; Angiosperm; Supergroup Archaeplastida 3.

The sporophyte generation in higher plants include which of the following: 1) seta 2) plant embryo 3 ) anther 4) embryo sac 5) seed cone 6) fruit 7) pollen grain 8.) needle-like leaves 9) protonemata     2. Which characterize Gnetum gnemon? 1 ) netlike venation 2) tracheary elements (vessels and tracheids 3) naked ovules 4) linear, entire leaves 5) dioecious flowers 6) parallel venation 7) vessels 8. broad, entire leaves 9) tracheids 10) ovary walls 11) monoecious flowers

9-10. What groups of gymnosperms have flagellated sperms?11. This is sometimes called the Age of Cycads.12. Cycads contribute to soil fertilization due to their symbiotic relationship withthese organisms.13. These are water conducting cells of gymnosperms.14-15. Mention two gymnosperms with medicinal values.

A disease spreads that only effects the haploid cells of a plant, killing them. What would happen to an angiosperm? |- it would not be able to reproduce Il - the photosynthetic stage of the organism would die III - the sporophyte stage would be effected IV- organs containing sperm and egg would be effected O a) I and IV O b) II OC) I, II, III and IV O d) Il and II

TRUE FALSE About the flower 1°) it is a set of modified leaves 2°) is basically unisexual 3°) it contains ovules 4°) it is characteristic of angiosperms O O O O O O O O

A B C D G E F H a) On the diagram, which labeled structure represents the mature male gametophyte? I b) Which labeled structure represents the female megasporangium, prior to the production of spores? c) On the diagram, which labeled structure represents the immature male gametophyte? F d) Which labeled structure represents the mature female gametophyte? J

Postlab: Bryophytes, Seedless Vascular Plants & Gymnosperms 1. What is the conspicuous form of the bryophytes? Is this form haploid or diploid? 2. The part that produces the male gametes is called the....? 3. The part that produces the female gametes is called the... 4. Spores are produced by which cell division process? 5. What is the conspicuous form of the seedless vascular plants? Is it haploid or diploid? 6. What are microspores? Where are they produced in gymnosperms? 7. Megaspores give rise to which structure in gymnosperms? 8. How are most gymnosperms pollinate d? 9. In gymnosperms, the material that nourishes the embryo derives from what tissue? 10. How can you visually differentiate a male from a female cone in pines?

#6 Match the reproductive structure to the correct generation and type of cell division that produces it in plants. 1.spores (match spores to one of the letters below) A. Made by sporophytes, through meiosis  B. Made by gametophytes, through mitosis C. made by gametophytes, through meiosis  D. Made by sporophytes, through mitosis 2. gametes (match gametes to one of the letters below) A. Made by sporophytes, through meiosis  B. Made by gametophytes, through mitosis C. made by gametophytes, through meiosis  D. Made by sporophytes, through mitosis

Journal: https://www.researchgate.net/publication/259179077_In_Vitro_Regeneration_and_Multiplication_of_Jackfruit_Artocarpus_heterophyllus_L The journal on the cultivation of one of any tropical plants in Asia by using micropropagation methods. QUESTION: Describe the scientific inquiry activity described in the paper- the work done to get new results not previously reported in the scientific literature What basic background materials had to be gathered? What tangible hardware or equipment was needed What new data or information were generated by the experiment