Term
| Name the 5 parts of a Human Cell. |
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Definition
1. Nucleus
2. Cytoplasm
3. Cell Membrane
4. Mitochondria
5. Ribosomes |
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Term
| Name the 8 main parts of an Animal Cell. |
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Definition
1. Nucleus
2. Cytoplasm
3. Cell Membrane
4. Mitochondria
5. Ribosomes
6. Cell Wall
7. Permanent Vacuole
8. Chloroplasts |
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Term
Finish the sentence
Yeast is a ______ ______ ________. |
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Definition
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Term
Finish the sentence
Bacterial Cells have __ _______. |
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Definition
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Term
| Where is the Genetic Material in a Bacterial Cell? |
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Definition
| It floats in the Cytoplasm. |
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Term
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Definition
| Contains genetic material that controls the activities of the cell. |
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Term
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Definition
| A gel like substance where most of the chemical reactions happen. Contains enzymes that control these chemical reactions. |
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Term
What is the Cell Membrane? |
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Definition
| Holds the cell together and controls what goes in and out. |
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Term
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Definition
| Where most of the reactions for respiration takes place. Respiration releases energy that the cell needs to work. |
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Term
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Definition
| Where proteins are made in the cell. |
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Term
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Definition
| Made of cellulose. It supports and strengthens the cell. |
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Term
What is the Permanent Vacuole? |
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Definition
| Contains cell sap, a weak solution of sugar and salts. |
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Term
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Definition
| Where photosynthesis occurs which makes food for the plant. Contains a green substance called chlorophyll. |
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Term
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Definition
| Diffusion is the spreading out of particles from an area of high concentration to an area of low concentration. |
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Term
| Name 4 Small Molecules that can diffuse through Cell Membranes. |
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Definition
1. Oxygen
2. Glucose
3. Amino Acids
4. Water
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Term
Name 2 Big Molecules that can't diffuse through Cell Membranes.
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Definition
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Term
Name 3 ways that Palisade Leaf Cells are adapted for Photosynthesis.
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Definition
1. Packed with Chloroplasts (most are nearer the top of the cell - so they're nearer the light).
2. Tall shape (means that a lot of surface area is exposed down the side for absorbing CO2 from the air into the leaf).
3. Thin shape (means a lot can be packed at the top). |
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Term
Name 3 ways that Guard Cells are adapted to open and close Pores. |
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Definition
1. When the plant has lots of water, the guard cells fill up and go plump and turgid. (This makes the stomata open so gases can be exchanged for photosynthesis).
2. When the plant is short of water, the guard cells lose water and become flaccid. (This makes the stomata close so as to stop too much water vapour escaping).
3. Thin outer walls and thick inner walls (Make the opening and closing work). |
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Term
Name 3 ways that Red Blood Cells are adapted to Carry Oxygen. |
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Definition
1. Concave shape (This increases surface area to absorb maximum amount of oxygen).
2. Packed with haemoglobin (Haemoglobin is the pigment that absorbs oxgen).
3. No nucleus (So there is more room for haemoglobin). |
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Term
Name 3 ways that Sperm and Egg Cells are adapted for Reproduction. |
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Definition
1. The egg cell contains huge food reserves (To feed the embryo).
2. The sperm cell has a long tail and a streamlined head (To help it swim to the egg).
3. When a sperm fuses with an egg, the eggs membrane instantly changes its structure (To stop anymore sperm getting in.) |
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Term
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Definition
| A group of similar cells that work together to carry out a particular function. |
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Term
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Definition
| A group of different tissues that work together to carry out a particular function. |
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Term
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Definition
| A group or organs working together to perform a particular function. |
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Term
| What is the equation for Photosynthesis? |
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Definition
| Carbon Dioxide + Water ➙ Glucose + Oxygen |
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Term
| Name the three main parts of a leaf. |
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Definition
1. Mesophyll tissue
2. Xylem and Phloem
3. Epidermal tissue |
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Term
| Name the three limiting factors of Photosynthesis. |
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Definition
1. Light Intensity
2. Percentage of Carbon Dioxide
3. Temperature |
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Term
| How can gardeners Artificially Create the ideal conditions for Photosynthesis? |
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Definition
Greenhouses - Help to trap the sun's heat.
Artificial Light - Used after the sun goes down so the plants can carry on photosynthesising.
Paraffin Heaters - Used to heat the greenhouse but also gives off carbon dioxide as a by-product.
Fertisisers - To provide the minerals need ed for healthy growth. |
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Term
| Name 5 ways that Plants use Glucose. |
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Definition
1. Respiration - the energy released from respiration enables the plant to convert the rest of the glucose into various other useful substances which the plant can use to build new cells and grow.
2. Making Cell Walls - glucose is converted into cellulose for making strong cell walls.
3. Making Proteins - glucose is combined with nitrate ions to make amino acids for proteins.
4. Stored in seeds - glucose is turned into lipids for storing in seeds.
5. Stored as Starch - glucose is turned into starch and stored in roots, stems and leaves. Starch is insoluable making it better for storing than glucose. |
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