Question

10. When a few drops of iodine solution are added to rice water, the solution turns blue black in colour. This indicates that rice water contains. *
1 fats
2 complex proteins
3 strach
4 simple proteins
11.The exit of unabsorbed food material is regulated by. *
1 liver
2 anus
3 small intestine
4 anal sphincter
12.What are the products obtained by anaerobic respiration in plants. *
lactic acid +energy
carbon dioxide +water +energy
ethanol +carbon dioxide +energy
pyruvate
13.The breakdown of pyruvate to give carbon dioxide, water and energy takes place in. *
cytoplasm
mitochondria
chloroplasts
nucleolus
14.Glycolysis process occurs in which part of the cell. *
cytoplasm
nucleolus
mitochondria
chloroplasts
15.Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps? *
ethanol +carbon dioxide +energy
lactic dioxide +water +enwrgy
carbon dioxide +water +energy
pyruvate
16.Name the pores in a leaf through which respi rarity exchange of gases rakes place. *
lenticels
vacuoles
xylem
stomata
17.The respiratory pigment in human beings is. *
carotene
chlorophyll
haemoglobin
mitochondria
18.Which plant tissue transport water and minerals from the roots to the leaf. *
xylem
phloem
parenchyma
collenchyma
19.The movement of food in phloem is called. *
transpiration
translocation
respiration
evaporation
20.A blood vessel which pumps the blood from the heart to the entire body. *
artery
capillary
vein
haemoglobin
21.Name a circulatory fluid in the human body other than blood. *
platelets
RBC
lymph
plasma
22.Name the tube which connects the kidneys to the urinary bladder. *
urethra
nephron
tubule
ureter
23.Where is the dirty blood in our body filtered? *
heart
lungs
ureter
kidneys
24.The procedure used for cleaning the blood of a person by separating urea from it is called. *
osmosis
filtration
dialysis
double circulation
25.Single circulation i.e.,blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following. *
hyla, rana, draco
whale dolphin, turtle
labeo, chameleon, salamander
none of these​

Answer 1

Answer:

1) starch      

2) anal sphincter

3) ethanol+carbon dioxide

4) mitochondria

5) cytoplasm

6) lactic dioxide+ water

7) stomata

8) haemoglobin

9) xylem

10) translocation

11) artery

12)plasma

13)ureter

14) kidneys

15)dialysis

16) labeo , chameleon , salamander

Explanation: