
BG TEMA 1
Authored by Maria Ye
Biology
12th Grade
Used 7+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Oligoelementos
C, H, O, N, P, S
Mn, Co, Cu, Zn
B, Al, V, Mo, I, Si
Na, K, Mg, Ca, Cl, Fe
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Oligoelementos Variables
Mn, Cu, Co, Zn
B, Al, V, Mo, I, Si
C, H, O, N, P, S
Na, K, Cl, Ca, Mg, Fe
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Características de los bioelementos primarios
Tienen masa atómica pequeña, la capa externa incompleta, dan lugar a moléculas dipolares
Los bioelementos mayoritarios pueden incorporarse a los seres humanos desde el medio externo
Permiten establecer enlaces ricos en energía teniendo la capacidad de oxidar y formar H2O
Elemento indispensable para formar la materia orgánica
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Características del carbono
Tiene la misma afinidad para unirse con el O que con el N
Son oligoelementos indispensables
Son los más electronegativos
Tienen 4 elementos en su periferia formando así enlaces covalentes estables
Sus enlaces forman un tetraedro imaginario (estructura tridimenensional)
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Características del hidrógeno
Liberan energía
Tienen un único electrón
Son indispensables
Pocos organismos son capaces de absorberla del medio
Pueden construir macromoléculas
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Características del oxígeno
Oligoelemento más electronegativo
Son capaces de oxidar
Forman parte de los oligoelementos primarios
Bioelemento más electronegativo
Al romper los enlaces liberan energía y forman H2O
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Características del nitrógeno
Forman H2O
Tiene radicales polares
Facilidad para formar compuestos con el H
Pocos organismos son capaces de abosrberlo del medio
Forman los grupos amino y las bases nitrogenadas
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