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Responde às seguintes questões com base nos vídeos: “Constituição e estrutura da molécula
de DNA”; “ Síntese proteica” e “ Constituição dos cromossomas”.
1- O que é o DNA?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
2- Onde se encontra o DNA nos Procariontes?
_____________________________________________________________________________
3- Qual a forma do DNA nos Procariontes?
_____________________________________________________________________________
4 – Onde se encontra o DNA nos Eucariontes?
_____________________________________________________________________________
5-Qual a forma do DNA nos Eucariontes?
_____________________________________________________________________________
6 – Como é constituído o DNA?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
7 – O que é o Nucleótido?
_____________________________________________________________________________
Escola Básica e Secundária José Saramago
Curso Profissional de Técnico Vitivinícola – 11º ano
Ficha de Trabalho- Módulo IV- Disciplina: Biologia
Nome _______________________________________ nº_____ Turma ____
Data: ___/ ___/ ______ Prof.: ___________________ Classificação: _____________________
8 – Como é constituído o Nucleótido?
_____________________________________________________________________________
_____________________________________________________________________________
9 – Quais as 4 bases azotadas que existem no DNA?
_____________________________________________________________________________
_____________________________________________________________________________
10 – Em que sentido se dá o crescimento de uma cadeia polinucleotídica?
_____________________________________________________________________________
11 – Qual a forma do DNA?
_____________________________________________________________________________
12 – Por quantas ligações de hidrogénio se liga a Adenina à Timina?
_____________________________________________________________________________
13 – Por quantas ligações de hidrogénio se liga a Guanina à Citosina?
_____________________________________________________________________________
14 – Qual a razão das bases azotadas se localizarem no interior da dupla hélice?
_____________________________________________________________________________
_____________________________________________________________________________
15 – Qual a razão do grupo fosfato e da pentose se localizarem na parte externa da dupla
hélice?
_____________________________________________________________________________
_____________________________________________________________________________
16 – Como se consideram as 2 cadeias polinuleotídicas que constituem a molécula de DNA?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
17 – O que é o codão ou tripleto?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
18 – O que são Histonas?
_____________________________________________________________________________
_____________________________________________________________________________
19 – O que são filamentos de cromatina?
_____________________________________________________________________________
20 – Onde se encontram os filamentos de cromatina?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
21 – Como são constituídos os cromossomas?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
22 – O que acontece na replicação semiconservativa?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
23 – Porque se considera o código genético universal?
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
24. Copia o quadro do PowerPoint sobre as principais diferenças entre RNA e DNA?

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Ficha 1.docx

  • 1. Responde às seguintes questões com base nos vídeos: “Constituição e estrutura da molécula de DNA”; “ Síntese proteica” e “ Constituição dos cromossomas”. 1- O que é o DNA? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 2- Onde se encontra o DNA nos Procariontes? _____________________________________________________________________________ 3- Qual a forma do DNA nos Procariontes? _____________________________________________________________________________ 4 – Onde se encontra o DNA nos Eucariontes? _____________________________________________________________________________ 5-Qual a forma do DNA nos Eucariontes? _____________________________________________________________________________ 6 – Como é constituído o DNA? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 7 – O que é o Nucleótido? _____________________________________________________________________________ Escola Básica e Secundária José Saramago Curso Profissional de Técnico Vitivinícola – 11º ano Ficha de Trabalho- Módulo IV- Disciplina: Biologia Nome _______________________________________ nº_____ Turma ____ Data: ___/ ___/ ______ Prof.: ___________________ Classificação: _____________________
  • 2. 8 – Como é constituído o Nucleótido? _____________________________________________________________________________ _____________________________________________________________________________ 9 – Quais as 4 bases azotadas que existem no DNA? _____________________________________________________________________________ _____________________________________________________________________________ 10 – Em que sentido se dá o crescimento de uma cadeia polinucleotídica? _____________________________________________________________________________ 11 – Qual a forma do DNA? _____________________________________________________________________________ 12 – Por quantas ligações de hidrogénio se liga a Adenina à Timina? _____________________________________________________________________________ 13 – Por quantas ligações de hidrogénio se liga a Guanina à Citosina? _____________________________________________________________________________ 14 – Qual a razão das bases azotadas se localizarem no interior da dupla hélice? _____________________________________________________________________________ _____________________________________________________________________________ 15 – Qual a razão do grupo fosfato e da pentose se localizarem na parte externa da dupla hélice? _____________________________________________________________________________ _____________________________________________________________________________ 16 – Como se consideram as 2 cadeias polinuleotídicas que constituem a molécula de DNA? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 17 – O que é o codão ou tripleto? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 18 – O que são Histonas? _____________________________________________________________________________ _____________________________________________________________________________
  • 3. 19 – O que são filamentos de cromatina? _____________________________________________________________________________ 20 – Onde se encontram os filamentos de cromatina? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 21 – Como são constituídos os cromossomas? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 22 – O que acontece na replicação semiconservativa? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 23 – Porque se considera o código genético universal? _____________________________________________________________________________ _____________________________________________________________________________ _____________________________________________________________________________ 24. Copia o quadro do PowerPoint sobre as principais diferenças entre RNA e DNA?