Mecanismos de ação de herbicidas.

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Other
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University
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Medium

Jesley Bandeira
Used 4+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Qual é o principal sintoma visual causado pela inibição da síntese de carotenóides?
Epinastia
Branqueamento das folhas
Necrose das bordas
Engrossamento radicular
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Herbicidas inibidores da GS causam acúmulo de qual composto tóxico nas células?
Ácido pirúvico
Nitrito
Amônio (NH₃)
Peróxido de hidrogênio
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Qual estrutura celular é diretamente afetada por herbicidas que inibem microtúbulos?
Mitocôndria
Núcleo
Fuso mitótico
Tilacoide
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
O glufosinato inibe qual enzima?
ALS
ACCase
GS (glutamina sintetase)
PPO
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
A ausência de carotenóides leva à degradação de qual pigmento?
Antocianina
Clorofila
Flavonoide
Ficobilina
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Os ácidos graxos de cadeia muito longa são essenciais para a formação de:
Hormônios auxínicos
Ceras e cutícula
Ribossomos
Amido
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Um sintoma típico de inibidores de microtúbulos é:
Folhas albinas
Raízes curtas e grossas
Morte rápida por necrose
Folhas enrugadas
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