Question

16. How is pinnately compound leaf different from palmately compound leaf?
17. Explain with suitable example the different types of phyllotaxy?
18. Describe the modification of stem with suitable examples?
19. Define the term inflorescence. Explain the different types of it?
20. Why xylem and phloem called complex tissues?
21. Difference b/w (i) Monocot root and Dicot root (ii) Monocot stem and dicot stem
22. What is the function of nephridia?
23. What are the cellular components of blood?
24. How many spermiathecae are found in earthworm?
25. What is the position of ovaries in Cockroach?
26. How many segments are present in abdomen of cockroach?
27. What is the function of parenchyma, collenchymas, Sclerenchyma?
28. What are the meristematic tissues? Explain the different types of meristem?
29. What is cell theory? Who proposed it?
30. Explain the fluid mosaic model?
31. What is the difference b/w prokaryotic and eukaryotic cell?
32. Name two organelles that are double membrane bound. What are the characteristics of these two organelles?
33. Name of feeding organ in phylum mollusca?
34. Describe the different regions of root?
35. What is the difference b/w peristomium and prostomium?
36. Draw well labeled diagram of digestive system of cockroach?
37. What is the difference b/w endocrine and exocrine glands?
38. Discuss about alimentary canal of earthworm?
39. Difference between prokaryotic cells and Eukaryotic Cells along with diagrams?
40. Describe the Watson and crick model of DNA in detail?​

Answer 1

Answer:

16)In pinnately compound leaf the no of leaflets are present on a common axis the rachis which represent midrib of leaf as in neem. In case of palmately compound leaf the leaflets are attached at a common point

17) NCERT page no-71 11th class

18) Stems of various plants have umdergone modification to perform different function. In ginger and banana the underground stem is called rhizome. The tips of the underground stem in potato become swollen due to accumulatiom of food.

19) 11th NCERT page 71,72

22) The nephridium is an invertebrate organ which occur in pairs and perform a function simmilar to the vertebrate kidney. It removes metabolic waste from animals body...

Hey.. please ask each question singally...

Answer 2

25.Cockroaches has large two ovaries located at second and sixth abdominal segment
31. Prokaryotes are generally unicellular has only one. Cell like bacteria algae and it has no nuclear membrane but eukaryotes are multicellular has many cell like cell of plants and animals and has nuclear materials and membrane
37. Endocrine glands secrete hormones directly without ducts and exocrine glands secrete hormones through ducts