std 5 chapter 1 - growing plants

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std 5 science chapter 1
Write true or false. 
1.sunlight is not necessary for seed germination. 
A. False

2.pupalia is dispersed by animals. 
A. True

3.maize has one cotyledon. 
A. True

4. The seeds of balsam are dispersed by wind. 
A. False

Fill in the blanks. 
1. Mushroom, ferns and mosses reproduce through special structures called _______
A. Spores

2._______ reproduction is a type of reproduction in which the plant reproduces from its body parts other than seeds. 
A. Vegetative

3._______ can propagate by stem cuttings. 
A.Bud

4.A new plant can grow from the ______ of the mother plants like the radish and turnip plants. 
A. Root

Choose the odd one out from each group on the basis of hints given in brackets. 
1.wheat,  rice  , bajra,  maize ( types of crops) 
A. Wheat

2.urea, compost, cow dung, decayed vegetable matter ( fertilizer type) 
A. Urea

3. Insecticides, pesticides, fertilizer, granaries (Agriculture input) 
A. Granaries
 
Practice set
1. Multiple choice questions (MCQs) 
a. Which of the following is not a Rabi crop? 
A. Maize

2.why is manure better than fertilisers? 
A. All of these

3.which one of the following does not damage crop? 
A. Manure

D. One of these fruits is dispersed by water. Which one is it. 
A. Lotus
a) root and stem (function) 
A. Root perform function of absorbing water and nutrients from soil. 
Stem transports water and nutrients to different parts of plant. 

b) Jowar and wheat ( growing months) 
A. Jowar is kharif crop grown in june- October wheat is rabi crop grown in November - April

c) potato and sweet potato ( Reproduction from other parts) 
A. Potato are grown from buds sweet potato are grown from roots of mother plant. 

d) manure and fertiliser (source) 
A. Manure is made from cow dung, lead and decaying plant animals and vegetable fertilise is made from chemicals such as nitrate and urea. 
 
e) a coconut seed and a dandelion seed (dispersal) 
A. A coconut seed is despersed by water. A dandelion seed is dispersed by wind. 

Q4. Read the following two statements and choose the correct option. 
Statement 1- very large - scale storage of grains is done in silos. 
Statement 2 - grains must be stored in moisture - laden rooms. 
A- statement 1 is correct but statement 2 is incorrect. 

Q5. Short answer type questions
a) which two types of fertilisers are usually mixed by farmers to increase nutrients in the soil? 
A-farmer use organic and chemical fertiliser to provide nutrients to crops. 

b) what is the function of cotyledons? 
A. Cotyledons hold food that seedling consumes as it grows. 

c) what are silos? 
A. Silos are used by farmers to store grains as large scale. 

d) what are the conditions necessary for germination? 
A. Water, air and sunlight is necessary for seed germination. 

e) Give examples of plants that reproduce by spores. 
A. Mushrooms, ferns and mosses reproduce by spores. 





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