big to small exam Flashcards

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1
Q

what are the chemical elements in all proteins

A

hydrogen, oxygen, carbon and nitrogen

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2
Q

which statement is true

starch is a monomer of glucose
amino acids all look identical
lipids contain nitrogen
sucrose is a carbohydrate

A

sucrose is a carbohydrate

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3
Q

the definition of a gene is

A

the part of DNA that codes for a specific characteristic

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4
Q

what are the 4 bases of DNA

CGAU CATO CTAG CGAH

A

CTAG

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5
Q

which is the most complex organisation level

organ, organ system, tissue or cell

A

organ system

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6
Q

where does the respiration of the cell happen

A

mitochondria

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7
Q

which is the smallest unit of measurement

metre, micrometre, nanometre or millimetre

A

nanometre

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8
Q

what happens in chloroplasts

A

light is used to convert carbon dioxide and water into glucose

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9
Q

where are the chromosomes located in a cell

A

the nucleus

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10
Q

which is the food test for protein

benedicts test
emulsion test
biuret test
iodine test

A

biuret test

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11
Q

define a tissue

A

it is many similar cells performing a particular function together

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12
Q

describe the food test for glucose
3MARKS

A

you place a small sample of food into test tubes, then add enough benedicts solution for the foot to appear blue. then place the tubes in hot water for 5 minutes and if there is glucose present it will turn blue to brick red.

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13
Q

compare and contrast an animal & plant cell, give similarities and differences
3MARKS

A

the similarities between a plant cell and an animal cell are that they both contain a cell membrane, mitochondria, ribosomes, a nucleus and a cytoplasm. the differences are that the plant cell contains a cell wall, chloroplasts and a vacuole which the animal cell does not contain.

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14
Q

what am i

i am multicellular
my cells contain chloroplasts and i have a cellulose cell wall
my cells contain a permenant vacuole

A

plants

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15
Q

what am i

i am much smaller than most
i am unicellular
i have no nucleus

A

bacteria

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16
Q

what am i

i am multicellular
i dont contain chloroplasts
store carbohydrates as glycogen
i have no cell wall

A

animals

17
Q

what am i

im hard to categorise, some say i look like animal cells yet my friends have chloroplasts and i can cause serious harm

A

protoctistas