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Transcript
Natural Science: Test 1 Grade 5 Flowers Question 1: 1. Answer the following questions in full. Which part of the flower is responsible for making pollen? Give both names. (2) ________________________________________________________________________ 2. Where is the pollen made and stored? (2) ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 3. In what part of the flower will you find the Ovaries? Give both names. (2) ________________________________________________________________________ 4. Explain in detail where the egg cells of the flower can be found. (3) ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 6. Why are the petals and leaves of a flower important? (2) ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Question 2: Match the words in column A to the correct description in column C. Write only the corresponding letter in column B. A B C Pollen 1. Process of sprouting Ovaries 2. Process of fertilisation Coconut 3. Fruit of a plant Filament 4. Receives pollen Stigma 5. Pistil and Stamen Germination 6. Becomes the fruit of the new plant Gametes 7. Carries the anther Ovules 8. Produces Pollen Anthers 9. Seed of the plant Tomato 10. Carries sperm cells 11.Have embryo inside 1 (10) Natural Science: Test 2 Grade 5 Flowers Question 3: Label the flower and discuss the function of each part. ½ each (9) A A1 A2 B B1 B2 B3 C D E Part Function Part A B2 A1 C A2 D B E Function B1 Draw a detailed picture of the location of pollen in the flower: 2 (4) Natural Science: Test 3 Grade 5 Flowers Question 4: Arrange the following pictures in order to illustrate the process of pollination by writing the letters in the correct order. C A (4) D B 1___________ 1. 2_____________ 3____________ 4__________ Explain pollination in detail by referring to the processes that take place from number 1 to 4 as sequenced above: 1- (4) ____________________________________________________________ ____________________________________________________________ 2- ____________________________________________________________ ____________________________________________________________ 3- ____________________________________________________________ ____________________________________________________________ 4- ____________________________________________________________ ____________________________________________________________ Question 3: Complete this paragraph by filling in the missing words: pollen sprouting fertilisers reproductive organs germination fertilisation pollination ovaries pollinators stamen egg cells (8) ovules pistil The process where the ______________ inside the Ovules gets into contact with the sperm cells inside the __________________, is called _______________. The sperm cells are the _________________________ of the _________________. After ___________________, the female cells will grow into the new plants. The __________ will form the seeds of the new plants and the ____________ will form the fruit of the new plant. Birds and insects are called _______________. Total: /50 3 Natural Science: Test Flowers - 4 Question 1: Grade 5 Answer the following questions in full. 1. Which part of the flower is responsible for making pollen? Give both names. (2) Male part, also known as Stamen. 2. Where is the pollen made and stored? (2) Pollen is made inside the anther part of the Stamen. Pollen sacks are found inside the Anther and pollen grains inside the pollen sacs. The pollen grains hold two sperm cells each inside. 3. In what part of the flower will you find the Ovaries? Give both names. (2) Female part, also known as Pistil. 4. Explain in detail where the egg cells of the flower can be found. (3) Inside the Ovaries are the Ovules and the eggs cells or Ovum are found inside the Ovules. The Ovaries are at the bulbous/bulging end of the Pistil. 6. Why are the petals and leaves of a flower important? (2) Petals and leaves protect the reproductive parts of the flower. Flowers attract insects to the plant and insects are an integral part of the process of pollination. The leaves are also responsible for making food for the plant, through the process of photosynthesis. Question 2: Match the words in column A to the correct description in column C. Write only the corresponding letter in column B. (10) A B C Pollen 10 1. Process of sprouting Ovaries 6 2. Process of fertilisation Coconut 9 3. Fruit of a plant Filament 7 4. Receives pollen Stigma 4 5. Pistil and Stamen Germination 1 6. Becomes the fruit of the new plant Gametes 5 7. Carries the anther Ovules 11 8. Produces Pollen Anthers 8 9. Seed of a plant Tomato 3 10. Carries sperm cells 11.Have embryo inside 4 Natural Science: Test Question 3: 5 Grade 5 Label the flower and discuss the function of each part. ½ each (9) Part Function Part Function A Stamen Male reproductive part of plant B2 Style Holds stigma high for birds/ insects to reach and provides a pipeline for pollen to ovaries A1 Anther Makes pollen and carries sperm cells C Petals Attracts birds/insects to flower, protects reproductive organs A2 Filament Keeps anthers upright and tall for insects/birds to reach D Leaves Protects reproductive organs and makes food for plant— photosynthesis B Pistil Female reproductive part of plant E Stalk Carries water and minerals from soil that have been absorbed by root, to the plant. B1 Stigma Receives the pollen carried by insects or birds Draw a detailed picture of the location of pollen in the flower: (4) Anther Pollen grains Sperm cells Pollen sac Question 4: 1D 1. 2A 3C 4B Explain pollination in detail by referring to the processes that take place from number 1 to 4 as sequenced above: (4) 1— Birds or insects are attracted to flower and drink nectar. The pollen then sticks to their feet. 2— Birds or insects fly away with pollen still sticking to them, finding the next flower for nectar. 3— Birds or insects reach the next flower. The pollen sticks to stigma of the pistil. 4— The pollen is then transported down tubes in the style to the egg cells (ovum) inside the ovaries. This is where fertilisation takes place. Total: /50 5