Q.41: Chromatin consists of -
(a)RNA (b) DNA (C)RNA and histones (proteins) (d)DNA and histones (protei
Q.42: Different types of chromosomes can be recognized by the positions o
following separating the two arms -
(a)Centromere (b) Genes (c) Spindle (d)Nucleus
Q.43: Name of the process that requires energy provided by ATP-
(a)Diffusion (b) Osmosis (c) Active transport (d)Plasmolysis
Q.44 : Cell division present in somatic cells-
(a) mitosis (b) meiosis (c) both (d) none
Q.45. Uncontrolled cell division is called -
(a) meiosis (b) cancer (c) phagocytosis (d) endocytosis
Q46. Why do plants get killed, when excess fertilizers are added to plants
Q47. Which process takes place on adding excess salt to pickles?
Answers
Hi Mate,
41) (b)Deoxiribose Nucleic Acid (pronounced as Deoxiribo Nucleic Acid)
42) (b) Genes
43) (c) Active Transport
44) (d) None
45) -----
46) Plants are killed when excessive fertilizer's are added to it as fertilizer's contain harmful chemicals which also has the capacity to destroy the plants if it is excessive.
Therefore, Plants get killed when we give them excessive fertilizer.
47) The process called Rancidity takes place when we add salt in it. (for more info, refer to class X NCERT Science Textbook)
Hope This Helps You.....☺☺
chromatin consists of (b) DNA and Horton protein
42 ( a) centromere
43 ( c) active transport
44(a) mitosis
45 (b) cancer
46. plants get killed when access fertilizer is added because of many chemical reaction. their photosynthesis got damaged in excess fertilizer.
47. lactic acid is made