Revision for Biology 2a 5.0 / 5 based on 2 ratings ? BiologyUnit 2GCSEAQA Created by: kennedylilyCreated on: 10-01-16 10:39 Name the five parts of a cell that both animal and plant cells have A nucleus, cytoplasm, mitochondria, ribosomes, and a cell membrane 1 of 25 Name three features of a yeast cell A nucleus, cytoplasm and a cell membrane 2 of 25 Where is the genetic material found in a bacterial cell? It floats in the cytoplasm 3 of 25 Where is the genetic material found in an animal cell? In the nucleus 4 of 25 Name three substances that can diffuse through cell membranes Oxygen, glucose and water 5 of 25 Name two substances that can't diffuse through cell membranes Starch and proteins 6 of 25 Give one way that a guard cell is adapted for controlling water loss It becomes flaccid when there is little water, so the stoma close 7 of 25 Give three ways that a sperm cell is adapted for swimming to an egg cell 1. Long tail 2. Streamlined head 3. Lots of mitochondria (for energy) 8 of 25 What is a tissue? A tissue is a group of similar cells that work together to carry out a particular function 9 of 25 What is an organ? An organ is a group of different tissues that work together to perform a certain function 10 of 25 Give three examples of tissues in the human stomach and say what they do 1. Muscular tissue (moves stomach wall for digestion) 2. Glandular tissue (makes digestive juices) 3. Epithelial tissue (covers outside and inside) 11 of 25 Name one organ system found in the human body Digestive system 12 of 25 Give an example of of a plant tissue Mesophyll tissue 13 of 25 Give an example of a plant organ Stems 14 of 25 What is the equation for photosynthesis? Carbon dioxide + water ( + sunlight) -> glucose + oxygen 15 of 25 What is the green substance in leaves that absorbs sunlight? Chlorophyll 16 of 25 Name the three factors that can limit the rate of photosynthesis 1. Light 2. Temperature 2. Levels of CO2 17 of 25 Explain why it's important that a plant doesn't get too hot The enzymes in the plant could become denatured 18 of 25 Why is glucose turned into starch when plants need to store it for later? Starch is insoluble which makes it better for storing - a cell with lots of glucose in would draw in lots of water and swell up 19 of 25 What is a habitat? A habitat is a place where an organism lives 20 of 25 Over the next five cards, name the five environmental factors that can affect the distribution of organisms 1. Temperature 21 of 25 2. 2. Availability of water 22 of 25 3. 3. Availability of oxygen and carbon dioxide 23 of 25 4. 4. Availability of nutrients 24 of 25 5. 5. Amount of light 25 of 25
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