Biology 2A

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Name five parts of a cell that both plant and animal cells have. What three things do plant cells have that animals cells don't?
5 things: Nucleus, Cytoplasm, Cell membrane, Mitochondria and Ribosomes. Plant cells: Cell Wall, Permanent Vacuole and Chloroplasts.
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Where is the genetic material found in: a) Bacterial cells b) Animal cells
a) It floats in the cytolasm as they don't have a nucleus b) They are found in the nucleus.
2 of 20
What is diffusion?
Diffusion is the spreading out of particles from an area of high concentration to an area to an area of low concentration.
3 of 20
Name three substances that can diffuse through cell membranes, and two that can't.
Do diffuse- Oxygen, Glucose, Amino Acids, Water Don't Diffuse- Starch, proteins.
4 of 20
Give three ways that a palisade leaf cell is adapted for phytosynesis.
Packed with chloroplasts, lots of surface area, thin shape so can all be packed at top of cell.
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Give three ways that a sperm cell is adapted for swimming to an egg cell.
Has a long tail and streamlined head to help it swim. There's a lot of mitochondria in the cell to provide energy needed.
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What is a tissue and what is an organ?
A tissue is a group of similar cells that work together to carry out a particular function. An organ is a group of similar cells that work together to carry out a particular function.
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Give three examples of tissues in the human stomach.
Muscular Tissue, Glandular Tissue, Epithelial Tissue.
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What's these stomach muscles job?
MT- Moves the stomach wall to churn up the food. GT- Makes digestive juices to digest food. ET- Covers the outside and inside of the stomach.
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Give examples of plant tissues and organs.
Tissues- Xylem and Phloem, Epidermal and Mesophyll Organs- Stem, Roots and Leaves
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Name one organ system found in the human body
Digestive system
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Whats the equation for photosynesis
carbon dioxide + water glucose + oxygen
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What is the green substance in leaves that absorbs sunlight?
Inside the chloroplasts, it's the chorophyll.
13 of 20
Name three factors that can limit photosynesis.
Light, Temperature and amount of CO2
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Explain why it's important that a plant doesn't get too hot?
The enzymes that are used for photosynesis and other reactions, if they get too hot they can become damaged.
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Why is glucose turned into starch when plants need to store it for later?
It's stored for when photosynesis isn't happening e.g during the winter, it's stored as starch because it's insoluble- cell with lots of glucose would draw lots of water in and cause cell to swell
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What are four other ways that plants can use the glucose prodcued by photosynesis.
For respiration, making cell walls, making proteins and stored in seeds.
17 of 20
What is a habitat?
A place where an organism lives.
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Give five eviromental factors that can effect the distribution of organisms.
Temperature, avaliability of water, avaliability of oxygen and carbon dioxide, avaliability of nutrients and amount of light.
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How do you work out the population size?
work out mean (total number of organisms divided by number of quadrats) and then multiply the mean by the total area.
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Other cards in this set

Card 2

Front

Where is the genetic material found in: a) Bacterial cells b) Animal cells

Back

a) It floats in the cytolasm as they don't have a nucleus b) They are found in the nucleus.

Card 3

Front

What is diffusion?

Back

Preview of the front of card 3

Card 4

Front

Name three substances that can diffuse through cell membranes, and two that can't.

Back

Preview of the front of card 4

Card 5

Front

Give three ways that a palisade leaf cell is adapted for phytosynesis.

Back

Preview of the front of card 5
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