Living organisms

glhoward13
Flashcards by glhoward13, updated more than 1 year ago
glhoward13
Created by glhoward13 almost 7 years ago
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Biology Flashcards on Living organisms, created by glhoward13 on 05/06/2014.

Resource summary

Question Answer
How do we know if something is living? If they do everything in MRS GRENC
What do the letter in MRS GRENC stand for? Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition & Control of internal environment.
Definition: Movement Moving whole or part of body
Definition: Respiration Chemical reaction releasing energy from food
Definition: Sensitivity Responding to stimuli in the environment
Definition: Growth Increasing in size or mass.
Definition: Reproduction Producing offspring sexually or asexually.
Definition: Excretion Getting rid of toxic waste products made in the cells.
Definition:Nutrition Obtaining food.
Definition: Control of internal environment. Maintaining constant conditions in and around the cells.
What is a cell wall? Fully permeable and helps maintain cell shape.
What organisms have a cell wall? Plant, Fungi, Bacteria
What is a cell membrane? Controls what molecules leave and enter the cell.
What organisms have a cell membrane? Animal, bacteria, plant & fungi
What is cytoplasm? Site of most chemical reactions.
What organisms have cytoplasm? Fungi, animal, plant & bacteria.
What is a nucleus? Controls cell activity and contains hereditary material.
What organisms have a nucleus? Animal, plant & fungi.
What are chloroplasts? Site of photosynthesis.
What organisms have chloroplasts? Plants.
What are mitochondria? Site of aerobic respiration.
What organisms have mitochondria? Animal, plant & fungi.
What is a vacuole? Contains cell sap & helps maintain cell shape.
What organisms have a vacuole? Plant & fungi.
What are ribosomes? Organelle making protein.
What organisms have ribosomes? Plant, animal, fungi & bacteria.
Name the 6 kingdoms Animal, Plant, Bacteria, Fungi, Virus & Protoctists.
How do animal cells store carbohydrates? As glycogen.
How do plant cells store carbohydrates? As starch or sucrose.
What are plant cell walls made of? Cellulose.
What are fungi cell walls made of? Chitin.
How do fungi store carbohydrates? As glycogen.
What is bacteria cell wall made of? Sugar & Protein.
Bacteria cells don't have a nucleus so where is their hereditary material? It is stored in a single strand of DNA in the centre of the cell.
Why aren't virus considered living? They don't do MRS GRENC, but they can only 'live' and reproduce inside other organisms.
What does the term parasitic mean? Something that can only live/reproduce inside another organism.
What is the smallest of the kingdoms? Virus
What is a pathogen? A disease causing micro-organism.
What kingdoms can pathogens come from? Bacteria, fungi, virus or protoctist.
2 examples of a viral disease. Aids and common cold.
2 examples of a fungal disease. Athletes foot and thrush.
2 examples of a bacterial disease. Salmonella and e-coli.
1 example of protoctist disease. Malaria.
Examples of specialised animal cells: Red blood cell and muscle cell.
Examples of specialised plant cells: Root hair cells & palisade cells.
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