optativa
Authored by DENIA Cuello
Biology
2nd Grade
Used 1+ times
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19 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Son utilizados por humanos desde la época prehistoria.
Fibras textiles
Fibras naturales
Fibras artificiales
Textiles
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Se obtiene a partir de celulosa pura derivada de borra de algodón.
Poliester
Acenato
Rayón
Lino
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Formada por sustancias químicas, elaborada por los seres vivos.
Fibras naturales
Fibras textiles
Lino
Rayón
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Se emplea para eliminar manchas que contienen algodón.
Pepsinogeno
Amilasas
Rayón
Vicosas
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Extrajo por primera vez la clorofila.
Willstatter
Von Baeyer
Richard Martin
Fischer
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sintetizo la anilina del alquitrán de carbón de hulla.
Von Hofmann
Perkin
Karrer
Robert
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Realizó la síntesis del colorantes rojo en la sangre de los vertebrados.
Perkin
Karrer
Von
Fischer
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