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Science Grade 8 > Cells And Systems Topic 1-3 > Flashcards

Cells And Systems Topic 1-3 Flashcards

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Biology 101 flashcards
1
Q

What are CELLS

A

Smallest unit that can preform the functions of life

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2
Q

What is a CELL MEMBRANE

A

Selectively permeable membrane/ structure enclosing the contents of a cell/ organelle; regulates passage of substances in and out, made of cellulose

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3
Q

What is a CELL WALL

A

Rigid structure surrounding the cell membrane of plants and some unicellular organisms; protects the cell

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4
Q

What is CHLOROPLAST

A

An organelle that contain chlorophyll-green pigment- allowing plants to make carbohydrates through photosynthesis (chemical energy from the sun); only in plants and some unicellular organisms

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5
Q

What is CYTOPLASM

A

Gel-like substance within a cell membrane that contains and supports the structure of the cell

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6
Q

What is MAGNIFY

A

To make an object appear larger by using a microscope or another magnifying instrument

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7
Q

What is a MICROSCOPE

A

Instrument making objects appear larger by bending light through a lens

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8
Q

What is MULTICELLULAR

A

Having many cells

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9
Q

What is the NUCLEUS

A

In a cell, an organelle that controls all the cells activities, like the brain

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10
Q

What is an ORGANELLE

A

Structure within a cell that has a specific function

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11
Q

What is UNICELLULAR

A

Having a single cell

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12
Q

What is a VACUOLE

A

In a cell, fluid filled organelle storing water, food, and waste

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13
Q

What is a WET-MOUNT

A

Type of sample preparation using a microscope slide, cover slip, and water

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14
Q

What is CELLULOSE

A

Tough carbohydrate material that in a large part, makes up the cell wall of many plants and fungi

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15
Q

What is the MITOCHONDRIA

A

Powerhouse of the cell, burns energy that is created to keep the cell running

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16
Q

What is DNA

A

Chemical code created by the nucleus that holds all the “instructions” on how the cell should run and how to “build” a new organism

17
Q

What is a RIBOSOME

A

Reads coded message from DNA, then creates material needed by the cell based on the code it reads

18
Q

What is a ROUGH ER

A

Rough because covered in ribosomes, stuff is synthesized by the cell and shipped off towards the SMOOTH ER

19
Q

What is a SMOOTH ER

A

Breaking down the cell/ ribosome further and/or delivering material to the GOLGI

20
Q

What is a GOLGI

A

Shares information, transporting it to other cells (way of communication), retrieving new info, and the cycle repeats

21
Q

What is a CYTOSKELETON

A

Network of fine fibres intertwined together

Science Grade 8 (1 decks)

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