1. Observe the table and answer the follow-ing questions.

a) Name the phytohormones which aregrowth promoters in plants?

A: Auxins, Gibberellins, Cytokinins. b) Which hormone used for root initiation? A: Auxins. c) Which hormone do you use if you want

seed less fruits? A: Gibberellins. d) Which hormone is in gaseous state? A: Ethylene.

3. Observe the table and answer the followingquestions.

a) Which stages having the changes in oppo-site direction? A: Prophase and Telophase

b) In which stage all the chromosomes appearin middle of the cell? A: Metaphase

c) What is meant by karyokinesis?

A: division of nucleus

d) How many cells are formed in Mitosis?

A: 2 cells

4. Write about the mal nutrition in children. Let us observe harmful effects of malnutri-tion in children.

Kwashiorkor disease:This is due to protein defi-ciency in diet. Body partsbecome swollen due toaccumulation of water inthe intercellular spaces.Very poor muscle develop-ments, swollen legs, fluffyface difficult to eat, diarrhoea, dry skin are thesymptoms of this disease.

Marasmus: This is due todeficiency of both proteinsand calories. Generallythis disease occurs whenthere is an immediate sec-ond pregnancy or repeat-ed child births. Lean andweak, less developedmuscles, dry skin, diarrhoea, etc., are thesymptoms of this disease. Obesity: This isdue to over eatingand excess of calo-ries in take. It is abig health hazard.Obese childrenwhen grow, they will be target of many dis-eases like diabetes, cardio vascular, renal,gall bladder problems.

email: help@eenadupratibha.netøŒEî¦ô¢Ù 8 íƇvñ÷J 2020

What is Cellular Respiration?4 Marks Questions

Target-2020

TenthBiology

100100

Pesara Prabhakar ReddySubject Expert

Writer

1. A person is suffering from Indigestion.Write the reasons and suggest theremedies for him?

A: Indigestion means difficulty in digestingfood. A more serious form of indigestion iscaused by stomach and duodenal ulcers.

To avoid problems related to digestion by:H having simple, well balanced mealsH eating food in a leisurely mannerH thoroughly masticating the food.H avoiding taking violent exercise soon after

eating foodH drinking plenty of water and having

regular bowel movements.2. A person is suffering from Constipation.

Write the reasons and suggest theremedies for him?

A: Assimilation and expulsion of wastesplays a key role and it is depends uponthe fiber content in the food. Intake of fiberrich food avoids constipation.

3. What is meant by Cellular Respiration? A: Cellular Respiration refers to the pathway

by which cells release energy by breakingthe chemical bonds of glucose molecules.

4. Which cell organelle is called as powerhouse of cell? Why?

A: Mitochondria are called as Power houseof the cell. Mitochondria store the energyin the form of ATP. That is why mitochon-dria are called 'power houses of the cell'

5. Explain about the Energy Currency? A: From the breakdown of glucose the ener-

gy is released and stored up in a specialcompound, known as ATP (adenosinetriphosphate) which is also called asEnergy currency.

6. What is the main difference between theArtery and Pulmonary Artery?

A: Arteries are the blood vessels which orig-inate from the heart and supply blood tovarious organs in the body. They carryOxygenated blood. Pulmonary arteriescarry blood from the heart to the lungsand carry deoxygenated blood.

2 Marks Questions

Sl.No

1.

2.

3.

4.

Hormones

Auxins

Cytokinins

Gibberellins

Ethylene

Uses cell elongation and dif-ferentiation of shootsand roots Promote cell division,promotion of sproutingof lateral buds, delayingthe ageing in leaves,opening of stomata. Germination of seedsand sprouting of buds;elongation of stems;stimulation of flowering;development of seed-less fruits, breaking thedormancy in seeds andbuds. ripening of fruit

A: Alkaloid

Quinine

Nicotine

Morphine,Cocaine

Reserpine

Nimbin

Pyrethroids

Plant

Cinchona officinalis

Nicotiana Tobacum(Tobacco)

Papaver samniferum(opium)

Rauwolfia Sarpentaina(Snake Root)

Azadirachta Indica

Chrysanthemum sps

Part

Bark

Leaves

Fruit

Root

Seeds, Bark

and Leaves

Flower

Uses

Anti malarial drug

Insecticide and stimulant

Painkiller

Medicine for Sanke bite,High B.P

Anti septic

Insecticides

2. Observe the table and answer the following questions. a) Name the alkaloids which are harmful to us?A: Nicotine, Morphine, Cocaine and

Pyrethroids are harmful to us. b) Which Alkaloids used for medicinal pur-

pose?A: Quinine, Reserpine and Nimbin are used

for medicinal purpose. c) Name the alkaloid which is used to pre-

vent malaria?A: Quinine is used to prevent malaria. d) What are the alkaloids which are used to

control the plant diseases? A: Nicotine and Pyrethroids are used to con-

trol the plant diseases.

1. Identify the Wrong pair? A) Blood Pressure - SphygmomanometerB) Platelets - Coagulation of bloodC) Lymphatic system - EdimaD) Human beings - single circulation

2. Write the hormone associated to thediagram?

A) Insulin

B) Adrenaline

C) Thyroxine

D) Testosterone3. Which of the following plant hormone is

in the gaseous state? A) Gibberellins B) CytokininsC) Auxins D) Ethylene

4. This diagram is example for A) BuddingB) FissionC) RegenerationD) Cutting

5. Birth control method in males is A) TubectomyB) VasectomyC) HysterectomyD) Caesarean operation

12

Mark Questions

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Answers: 1-D 2-B 3-D 4-C 5-B.

Sl.No

1.

2.

3.

4.

Stage

Prophase

Metaphase

Anaphase

Telophase

Description Chromosomes con-dense and get coiled. Nuclear membrane dis-appears. Nucleolus disappears.Chromosomes move tospindle equator, spindlefibers attached to cen-tromers. Centromerssplit, separating thechromatids Spindle fibers attachedto centromers contract,pulling chromatidstowards poles. Chromatids elongate,become invisible,Nuclear membranesform around daughternuclei, Nucleolusappear