1304017
| Questão | Responda |
| WHAT IS MITOSIS? | cell devision that happens in body cells resulting in two genetically identical cells |
| WHERE DOES MITOSIS OCCUR? | all over the body |
| How many cell divisions in MITOSIS? | 1 |
| WHAT DOES MITOSIS CREATE? | all cells apart from GAMETES (sex cells) |
| MITOSIS - HOW MANY CHROMOSOMES? WHICH TYPE? | 46 (diploid) |
| Explain diploid | a cell that has a nucleus with two sets of chromosomes; body cells |
| How many cells does mitosis produce? | 2 |
| What is the function of mitosis? | cellular reproduction, growth |
| WHAT IS MEIOSIS? | cell division that occurs to form sex cells resulting in four genetically identical cells |
| WHERE DOES MEIOSIS OCCUR? | sex organs |
| How many cell divisions in MEIOSIS? | 2 |
| WHAT DOES MEIOSIS CREATE? | gametes (sex cells - male and female) |
| MEIOSIS - HOW MANY CHROMOSOMES? WHICH TYPE? | 23 (haploid) |
| Explain haploid | a cell that has a nucleus with only one set of chromosomes; a sex cell |
| How many cells does meiosis produce? | 4 |
| What is the function of meiosis? | sexual reproduction |
| VOCAB BUILDING: DNA replication | DNA makes an exact copy of itself Note - this happens before cell division |
| VOCAB BUILDING: chromatid | one-half of two identical copies of a replicated chromosome |
| VOCAB BUILDING: homologous chromosomes | chromosome pairs of approx. the same length with genes for same characteristics Note - 23 pairs in body cells |
| VOCAB BUILDING: parent cell | a cell that divides to produce two or more daughter cells |
| VOCAB BUILDING: daughter cell | cells formed when a cell undergoes cell division |
| VOCAB BUILDING: nuclear membrane | membrane that surrounds genetic material (also called nuclear envelope) |
| VOCAB BUILDING: asexual reproduction | reproduction without gametes, using mitosis |
| VOCAB BUILDING: multicellular | organism consisting of more than one cell |
| VOCAB BUILDING: organ system | group of related organs |
| VOCAB BUILDING: nervous system | coordinates the actions of animal and transmits signals between cells (consists of spine, brain and nerves) |
| VOCAB BUILDING: endocrine system | organ system of glands, each secreting different types of hormones directly into the bloodstream |
| VOCAB BUILDING: circulatory system | organ system that transports substances around the body (consists of heart, blood vessels and blood) |
| VOCAB BUILDING: digestive system | organ system that processes food consists of gullet, stomach, small and large intestine |
| VOCAB BUILDING: respiratory system | organ system that brings in oxygen and gets rid of carbon dioxide consists of lungs and windpipe etc. |
| VOCAB BUILDING: gametes | sex cells male gametes are sperm female gametes are eggs |
| VOCAB BUILDING: haploid | describes a cell that has a nucleus with only one set of chromosomes; a sex cell |
| VOCAB BUILDING: zygote | usually a diploid cell resulting from the fusion of a sperm and an egg (two haploid cells) |
| VOCAB BUILDING: fertilisation | joining of female and male gametes to make a new individual |
| VOCAB BUILDING: mitochondria | a small rod shaped structure that releases energy during aerobic respiration |
| VOCAB BUILDING: acrosome | the organelle over the head of sperm that contains digestive enzymes |
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