17796481
Descripción
Fichas por Azlan Naeem, actualizado hace más de 1 año
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Creado por Azlan Naeem
hace más de 5 años
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| Pregunta | Respuesta |
| What is growth in animals? | An increase in the number and size of cells. |
| Give examples of specialised animal cells. | 1. Ciliated Cells 2. Red Blood Cells 3. Sperm cells 4. Egg cells |
| What is the function of a ciliated cell? How is its structure related to its function? | Cilia cells stop lung damage by sweeping mucus out of the airways. it has tiny hairs called cilia which help it do its job and is found in the air passageways down to the lungs. |
| What is the function of a Red Blood Cell? How does its structure relate to its function? | Red Blood Cells carry oxygen from the lungs to the body and CO2 from the body back to lungs. Its biconcave shape allows it to have a large surface area which contains haemoglobin to carry as much oxygen as possible. Also it has no nucleus which helps make space for more oxygen |
| What is the function of the sperm cells and how is its structure related to its function? | Sperm cells carry the father's genetic information (DNA) to the egg cell. It is found in the testis of males. It has a long tail which allows it to swim to the egg and the acrosome's shape allows it to get into the jelly coat of the egg cell and also contains the nucleus so the nucleus can go staight into the egg cell. |
| Why is cell differentiation important to the development of specialised cells? | Multicellular organisms need many different types of cells to carry out different functions. Differentiation allows cells to become specialised and carry out different functions to allow the organism to live |
| Suggest 2 ways in which the plotted line on a percentile growth chart might alert medical professionals to do additional checks on the growth and development of a baby. | ▪baby might be close to higher end of the curve could suggest baby is growing too quickly or gaining weight too quickly ▪ if baby is towards bottom of the curve they might need more fat in their diet to grow more |
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