AQA Additional Science B2.1 Cells and Cell Structure Flashcards

Ilyass Jalloh
Flashcards by Ilyass Jalloh, updated more than 1 year ago
Ilyass Jalloh
Created by Ilyass Jalloh almost 6 years ago
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AQA Additional Science B2.1 Cells and Cell Structure Flashcards

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Question Answer
B2.1 Cells and Cell Structure AQA Additional Science
What is the function of the nucleus in both animal and plant cells ? contains genetic material & tocontrol activities of the cell
Where do chemical processes take place ? in the cytoplasm chemical processes which are controlled by enzymes
What is the function of the cell membrane ? to control the movement of substances into and out of the cell
What is the function of mitochondria in animal & plant cells ? to release energy in respiration
Where does protein synthesis happen in both animal & plant cells ? in the ribosomes
What do both plant and algal cells have ? a cell wall made of cellulose which strengthens the cells
What do plant cells have ? chloroplast -to absorb light energy 4 photosynthesis also contains chlorophyll a permanent vacuole with a cell sap to keep the cell turgid
What does a bacterial cell consist of ? a cytoplasm & a membrane surrounded by a cell wall the genes are in the cytoplasm not in the nucleus
What are the features of yeast ? single celled have a nucleus & a membrane surrounded by a cell wall
What is the function & adaptation of cells ? F : absorb light energy 4 photosynthesis A: full of chloroplast , Regular shaped cells are closely packed in a continuous layer for efficient absorption of sunlight
What is the function of root hair cell ? to absorb water & mineral ions from the soil
How is the Root cell adapted ? Long 'finger-like' process with very thin wall, which gives a large surface area.
What is the function of a sperm cell ? to fertilise an egg cell
How is a sperm cell adapted ? head contains genetic info enzyme 2 penetrate the egg cell membrane middle full of mitochondria 4 energy tail moves sperm to egg
What is the function of Red Blood Cell ? contains haemoglobin to carry oxygen to the cells
How is a Red Blood Cell Adapted ? thin outer membrane allows oxygen to diffuse easily shape increases SA so oxygen is absorbed efficiently no nucleus so full cell is haemoglobin
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