1. Photoautotrophs can synthesize sugar using inorganic source of carbon and sun
ID: 271006 • Letter: 1
Question
1. Photoautotrophs can synthesize sugar using inorganic source of carbon and sunlight an energy source Bacterial cell walls are composed of polysaccharide similar to cellulose. 3. 2. Chemoheterotrophs synthesize sugar by ingesting inorganic sources of carbon and u the energy released from oxidation of reduced compounds. 4. Endosymbiosis is the likely explanation for the evolution of the nuclear membrane. 5. All members of the kingdom Fungi reproduce both sexually and asexually. 6. A cephalized animal has sense organs concentrated at its dorsal end. 7. A poikilohydric organism is one whose temperature varies with changes in the environment. 8. Although plants excrete oxygen and animals excrete carbon dioxide, both plants and animals generally excrete a nitrogenous waste. 9. The apoplast of plants is analogous to the intercellular fluid of animals. 10. Ectothermic organisms are also homoeothermic. 11. To conserve heat, plants and animals living arctic regions would tend to be more compact and rounder than those living in tropical regions. 12. Gametes are produced in gametophytes that are part of a gametangial plant. 13. Antheridia and archegonia are spore-producing structures on the sporophyte plant 4. Trees, including specimens such as maple, oak or spruce, are the haploid sporophy portion of a life cycle. gametophytes. continuous vessels 5. Both conifers and flowering plants are heterosporous, producing two kinds cof i. The first vascular plants had a central core of vascular tissue made of fibers andExplanation / Answer
1) true: photoautotrophs synthesise food from sunlight(energy source) and Co2(inorganic carbon)
2)false: bacterial cell wall majorly made up of peptidoglycan which have N-acetyle glutamic acid and N-acetyl murine as major componants
3)True: chemo autotrophs synthesise food from inorganic carbon with the energy released when the reduction of organic compounds takes place
4) False: Endosymbiotic theory is not about the evolution of nuclear membrane, but it is related to evolution of membrane bound semi autanomous organisms like mitochondria and chloroplast.
5) False: all members of fungi not use both reproductive mechanisms. some fungi show only assexual reproduction
6)True: cephalised organisms have dorsally oriented sence organs
7)True: poikilothermic animals cannot maintain body temparature so they change their themparature according to the environment.
8)False: plants excreate oxygen and excess water through transpiration, metabolic wastes are not excreated more than excresion of other metabolic wastes they store inside plants parts as tanin, resins, gums of any other form of secondary metabolites.
9)True: in the plants apoplast contains cell wall depositions it gives mechanical support to the cytoplast. its is equalent to animal intercellular fluid as both involved in same osmotic balence.
10) False: ectothermic organisms cannot maintain their body temparature but homeothermic organisms can maintain their body temparatures.
11)True: living in compact nature or in groups they lose less heat to the environment.
12) True: a spore germinates to became a gamitophyte which produce gamits in their gamitangia.
13) False: archegonium and anthredium are not sporophytes but those are gamitophytes which produces gamits.
14)False: they have diplotic dominant lyfe cycle.
15) True: both are heterosporous plants that means they produce two (male and female) morphologically different spores.
16) False: Vessels and fibers in the vasculare system are considered to be advanced structure than tracheids.
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