Science Exam
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What are the 3 differences between the plant cells and animal cells? | Chloroplast,the vacuole and the cell wall.
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| What does the nucleus do? | It is the control center of the cell and it holds the cells DNA
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| what are the 5 phases of mitosis? | prophase,metaphase, anaphase, telophase and interphase.
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| What is significant about Prophase? | Double stranded chromosomes can be seen with a microscope and spindle fibres begin to form.
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| what is the famle and male flower reproductive organ? | Female-Pistil
Male-Stamen
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| What does the lysosomes do? | The Lysosomes digest the food in the cell.
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| What is another word for Static Electricity | Electrostatics
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| What are the properties of a gamma ray? | No mass, no charge and its made of energy
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| what are the properties of an alpha ray? | Four times the mass of one proton, two times the charge and its made of matter and it has a positive charge?
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| What are the properties of a beta Particles. | Same mass as an electron, same charge and its made of energy.
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| What are three ways to charge an item? | Contact friction and induction?
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| What is the nickname for lysosomes? | Suicide Sacks
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| How many electrones are on the second ring of the Bohr Rutherford model? | Eight
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| Why is static electricity more of a problem in winter then in summer. | The air is drier and more build up in electrons on different types of meterials.
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| What is the function of pollination? | For the purpose of reproduction in flowers.
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| What is the difference between gymnosperms and angiosperms? | Angiosperm is a flowering plant while gymnosperm seeds are inside cones.
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| What is the haploid and diploid number of a human? | Haploid 23
Diploid 46
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| What is Binary fission? | A type of sexual reproduction, it does not contain a true nucleus.
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| what animals does binary fission occur in? | bacteria
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| What are two points of the cell theory? | All living organisims are composed of one or more cells
All cells come from prervious existing cells.
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| What are three types of asexual reproductionin a fungus? | spore formation, budding and fragmentation.
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| whats the significants about Anaphase? | The spindle fibres begin to contract and shorten allowing the chromosomes to break apartand moving to either ends of the cell.
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| Whats the significanse about Telophase | Final stage of mitosis,A nuclear membran forms around each set of chromosomes and the spindle fibres begin to disappear
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| Whats the significanse about Meta Phase | When the tugging action of the spindle fibres pull the chromosomes into a straight line across the cell.
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| Whats the significanse about Interphase | (where the cell spends 10hrs of its life) The cells grows, replicates its DNA and gets prepared for the first step of mitosis.
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| What is fragmentation | When a small fragment breaks away from another plant and sprouts onto another plant or in the ground
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| What is Budding | Once a nucleus forms first then a small bud begins to form on the cell wall. That bud containing the nucleus grows larger and larger and larger until a plant forms.
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| What is Spore Formation | A reproductive cell that forms through mitosis
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Created by:
mcintyre
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