1. Type of protist that carries on photosynthesis 2. Bacterial cell wall compone
ID: 270769 • Letter: 1
Question
1. Type of protist that carries on photosynthesis 2. Bacterial cell wall component the defines bacteria as gram negative or gram positive 3. Unicellular organisms than moves and engulfs food with pseudopods 4. Haploid generation of the alternation of generation of a plant 5. Structure where the megaspore becomes an egg-producing female gametophyte 6. Sperm -producing male gametophyte in seed plants 7. A tissue in the active growth region of plants 8. Plant vascular tissue that conducts organic solutes 9. Plant group, flower has multiples of four or five parts 10. Plant vascular tissue that transports water and mineral solutes upward through the plan body 11. Non-woody stem 12. Place where one or more leaves attach to a stem 13. Primary phloem and primary xylem enclosed by a bundle sheath 14. Plant's loss of water to the atmosphere 15. Region of the stem between two successive nodes 16. Functions for gas exchange in plants 17. Body cavity lying between the digestive tract and body wall 18. Having a well-organized anterior head with a brain and sensory receptors 19. Type of protist that carries on photosynthesis 20. Bacterial cell wall component the defines bacteria as gram negative or gram positive 21. Unicellular organisms than moves and engulfs food with pseudopods 22. Haploid generation of the alternation of generation of a plant 23. Structure where the megaspore becomes an egg-producing female gametophyte 24. Sperm-producing male gametophyte in seed plants 25. A tissue in the active growth region of plants 26. Plant vascular tissue that conducts organic solutes 27. Plant group, flower has multiples of four or five partsExplanation / Answer
1. Protist includes phyptoplanktons, amoeba, flagellates, algae, diatoms, dinoflagellates, ciliates etc. Photosynthetic protists are algae that contain chloroplasts and synthesize their own food. They are primary producers in aquatic systems.
Right answer: Algae
2. Bacteria are classified as gram positive or gram negative based on peptidoglycan content. Gram positive bacteria have a thick cell wall. Hence, the crystal violet taken up by the peptidoglycan can be decolorized, staining them pink. Gram negative bacteria have thin cell wall. Hence, the peptidoglycan takes up the crystal violet, but is destained by the decoloriser. Hence, it stains pink with saffranin.
Right answer: Peptidoglycan
3.Amoeba is a unicellular protist that has a large surface to volume ratio. It engulfs food by surrounding it and using pseudopods, which are extension of cell membrane. Food is stored in vacuoles.
Right answer: Amoeba
4. The gametophyte is a haploid generation that is formed from spores. Gametophytes produce male and female gamete, which fuse to form zygote. Zygote forms the diploid sporophytes that produce spores.
Right answer: Gametophyte
5. The ovule is the structure, where the female gameptophytes reside that is formed from megaspores. These cells will form the female gametes, which fuse with male gametes to form the zygote and later the sporophytes.
Right answer: ovule
6. Sperm producing male gametophyte in seed plant is called microgametophyte while egg producing female gametophyte is megagametophyte. Male gametophyte in seed plants is present in pollen grains.
Right answer: Microgametophyte.
7. A tissue in active growth region of plants is the meristem. The meristem is undifferentiated and can form different parts of the plants. They are apical, lateral, and intercalary depending on location.
Right answer: Meristem
8. The phloem is involved in carrying organic solvents throughout the plant. It is a vascular tissue that contains sieve tubes, companion cells, phloem fibres, and phloem parenchyma cells.
Right answer: Phloem
9. Dicots or dicotyledonous plants are angiosperms that have two cotyledons in its seeds. Their flowers parts i.e. sepals, petals, stamens, and pistils are based on a plan of four or five, or multiples of them.
Right answer: Dicotyledons
10. Xylem is the vascular tissue in plants that is the transport tissue for water and inorganic solutes upward through the plant body. The water and inorganic solutes are passed from the roots to the leaves.
Right answer: Xylem
11. Non-woody stem is herbaceous. The plants with such stems are called herbaceous plants or herbs. They lack wood in their stem and are soft. Herbaceous vines climb over other plants.
Right answer: Herbaceous
As per Chegg’s rules, only one question needs to be mandatorily answered.
Questions 19-27 are repetition of 1-9.
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