A plant has 24 chromosomes in microspore mother cell The number of chromosome in its endosperm will be 12 24 36 48 8. The documents can be viewed or downloaded individually, or complete sections can be downloaded in a zip file with the All zipped links. Reproduction through spore formation takes place in a. They are in PowerPoint format and should be run as a slideshow. A zygote is formed during the process of fertilization. If you do not have Microsoft Word installed see for advice on how to view them. The process by which plants give rise to new plants without seeds is called a.
The role of double fertilization in angiosperms is to produce endosperm cotyledons endocarp hormones 2. This period is high time for every student to start their preparation seriously so that they can score well in their final examinations. You also get idea about the type of questions and method to answer in your Class 7th examination. Fertilisation, pollination, germination, seed dispersal, seed formation. Also label the missing part that you draw. All plants reproduce by either sexual or asexual reproduction. To get the water to a suitable temperature for germination.
Explain the reason for the growth of these plants. To kill germs in the water. The students should practice the questions database to get better marks in examination. If there are 4 cells in anthers what will be the number of pollen grains? To remove carbon dioxide from the water. How is it adapted for dispersal by water? Each set contains approximately 20 questions.
The cell which results after fusion of the gametes is called a. Male reproductive part of a plant is a. Germination, pollination, seed dispersal, fertilisation, seed formation. Why was the water boiled? Sections 6 and 7 are drawn from Chapters 30-39. Reproduction in yeast takes place by a.
When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking 'Get score'. If you do not have PowerPoint installed you can download PowerPoint Viewer free. . The functional megaspore develops after three successive mitotic division into embryo ovule zygote embryosac 5. We recommend that you download the PowerPoints and run them from your disk. To remove oxygen from the water. Students and parents can download free a collection of all study material issued by various best schools in India.
Here we have covered Important Questions on Reproduction in Plants for Class 7 Science subject. The documents are offered in Word format. Most of the questions are for self-assessment. Endosperm is formed during the double fertilization by ovum an male gamete two polar nuclei and one male gamete one polar nuclei and one male gamete two polar nuclei and two male gamete 9. Choose the best answer from the four options given. In flowering plants a mature gametophyte is derive from a pollen mother cell by two mitotic divisions three mitotic divisions a single meiotic divisions one meiotic an two mitotic divisions 7.
She wondered where they had come from as nobody had planted them there. The Central Board of Secondary Education conducted Board Examinations are only a few months away from now. Science Important Questions Class 7 are given below. Pollination, seed formation, fertilisation, germination, seed dispersal. These questions are more demanding and test Interpretation of data I , Hypothesis formulation and design H , Experimental design E , Application of biological information A , Comprehension of scientific articles C as well as simple recall R. Male gametes in angiosperms are formed by the division of microspore microspore mother cell generative cell vegetative cell 3.
The information can be found in the pages of and. Percentage score will be displayed along with right answers. By which method of reproduction did the algae spread so rapidly? Double fertilization involves ferilization of the egg by two male gametes fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube fertilization of the egg an the central cell by two sperms brought by the same pollen tube fertilization of the egg an the central cell by two sperms brought by different pollen tubes 4. The board has also announced the date of the exams. The female reproductive part of a plant is a.
To help their students in the proper way, school teachers and mathematics experts are giving good advice to the. When they are on the go for scoring more marks for the main subjects, their performance level and the marks got greatly reduced in English. Which of them can be used to grow a new rose plant? Answers to Multiple Choice Questions 1. Reproduction through the vegetative parts of a plant is known as a. The flowers which contain either only the pistil or only the stamens are called a. None of the above 8. Correct answers are indicated as well as explanations of the reasons for rejecting the alternatives.