Q24. How are the vacuoles in animal and plant cells different?
Q25. What is the function of nucleus in a cell?
Q26. Name the animal cell which is long and has thread like branches.
Q27. A hen’s egg can be seen easily. Is it a cell or a group of cells?
Q28. Name one cell which can be seen by unaided eye.
Q29. What is an organ?
Q30. Why nerve cells are long and have branches?
Q31. What regulates the movement of substances into and out of the cell?
Q32. Name the smallest and largest cell in the world.
Q33. What is cell wall? What is its function?
Q34. What advantage does Amoeba derive by changing shape?
Q35. Name a single cell present in the human body which can change its shape.
Q36. Name one organism which has no definite shape, and keeps on changing its shape.
Which unicellular organism has no definite shape?
Name an organism which changes its shape frequently.
Q37. How do scientists observe and study the living cells?
Q38. What is plastid? What is the name of green plastids present in plant cells?
Q39. What are the three main parts of the cell?
Q40. Name two plant organs.
Q41. What are unicellular organisms? Give two examples.
Q42. What are pseudopodia in amoeba? What are the functions of pseudopodia?
Q43. What is a gene? What is its function?