Cells Cycle And Stem Cells Flashcards

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1
Q

Diffusion

A

The net random movement of particles from an area of low concentration to an area of high concentration.

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2
Q

Mitosis

A

Normal body cell divided by mitosis

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3
Q

Meiosis

A

The type of cell division that produces sex cells(sperm and egg cells)

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4
Q

Osmosis

A

Osmosis is the movement of water molecules from an area of high water concentration (weak/dilute solution) to an area of low water concentration (strong/concentrated solution) through a partially permeable membrane.

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5
Q

Rate pf diffusiom

A

Dissolved substances have to pass through the cell membrane to get into or out of a cell. Diffusion is one of the processes that allows this to happen. Diffusion occurs when particles spread. … Particles diffuse down a concentration gradient, from an area of high concentration to an area of low concen

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6
Q

Chromosome

A

The cell’s nucleus contains chromosomes made from long DNA molecules. The diagram shows the relationship between the cell, its nucleus, chromosomes in the nucleus, and genes. Nucleus, chromosome and gene

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7
Q

Cytoplasm

A

A jelly-like material that contains dissolved nutrients and salts and structures called organelles. It is where many of the chemical reactions happen.

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8
Q

Mitrochondria

A

Organelles that contain the enzymes for respiration, and where most energy is released in respiration.

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9
Q

Ribosomes

A

A tiny organelle where protein synthesis occurs.

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10
Q

Choloroplast

A

Organlles that contains the green pigment, chlorophyll, which absorbs light energy for photosynthesis. Contains the enzymes needed for photosynthesis

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11
Q

Nucleus

A

Contains genetic material, including DNA, which controls the cell’s activities

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12
Q

Cell wall

A

Made from cellulose fibres and strengthens the cell and supports the plant

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13
Q

Permanent vacoule

A

Filled with cell sap to help keep the cell turgid.

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14
Q

Prokaryiotic cell

A

A simple cell that does not have a nucleus – the DNA is free in the cytoplasm

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15
Q

Eukaryotic cell

A

A type of cell that nucleus

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16
Q

Resolution

A

The fineness of detail that can be seen in an image - the higher the resolution of an image, the more detail it holds. In computing terms, resolution is measured in dots per inch.