Quiz
Cellular and Molecular Biology Lesson 1 of 5 - Cells
Perguntas do quiz (31)
1___ Is the substance that is more of, the dissolve-r.
- ASolvent
- BSolute
- CSteve Martin
2____ is the substance that is being dissolved (usually less of).
- ASolvent
- BSolute
- CSteve Martin
3Diffusion is______________
- AThe passive movement of molecules along a concentration gradient
- BThe active movement of molecules along a concentration gradient
- CDis-arming of nuclear weapons
- DSteve Martin
4A concentration gradient ________________
- Amoves from regions of high concentration to low concentration
- Bmoves from regions of low concentration to high concentration
- Cis like a grading curve
- Da scale of concentrations
- ESteve Martin
5hypertonic
- Ais Steve Martin
- Bis the higher concentration solution
- Cis the lower concentration solution
- Dis neither higher nor lower concentration
- Eis a kid on pixie stix
6hypotonic
- Ais Steve Martin
- Bis the lower concentration solution
- Cis the higher concentration solution
- Dis neither higher nor lower concentration
- Ea hippo's tonic and gin
7hyper- = ?
- Ahaving a lot of something
- Bhaving nothing
8hypo- = ?
- ANot a lot of something
- BA big deal
9Osmosis is
- Athe active movement of water molecules through a membrane
- Bthe passive movement of water through a permeable membrane
- Cthe passive movement of water through a semi-permeable membrane
- Ddiffusion of water from one place to another
- ESteve Martin
10Osmosis is the movement of water from the
- Ahypotonic to the hypertonic
- Bhypertonic to the hypotonic
- Cgood to the bad
- Dbig to the small
- Ehard to the soft
11Which has a nucleus?
- Aeukaryote
- Bprokaryote
- Cthe rock lobster
12Which is not usually as complex or as large as the other?
- Aprokaryote
- Beukaryote
13An Organelle is ___________
- Aa membrane bound substructure in the cell.
- Ban organ
- Crare in cells
- Donly found in prokaryotes
- Ehard to define
14Which of these is not an organelle?
- Aribosome
- Bvacuole
- Cvesicle
- Dplastid
15Which of these organelles have their own DNA?
- Aplastid
- BEndoplasmic Reticulum
- Cgolgi body
- Dvesicle
- Emitochondria
16the Chloroplast is the most famous plastid type.
- AVerdadeiro
- BFalso
17Plastids are found in both plant and animal cells.
- AVerdadeiro
- BFalso
18Mitochondria:
- Aposses their own DNA inherited from the maternal line
- Bare energy factories for the cell, and produce ATP
- Chave an inner and an outer membrane
- Dare unique only to animal cells
19Plastids have their own DNA.
- AVerdadeiro
- BFalso
20In terms of DNA and/or RNA, replication is:
- Awhen the cell copies itself
- Bthe creation of mRNA
- CThe synthesis of a duplicate copy of DNA from a template pair of strands
21During replication, the double stranded DNA is separated by ____
- ADNA helicase
- BRNA helicase
- Czipper gene
- Dzipper enzyme
22The step from DNA to RNA is called
- ATranscription
- BTranslation
- CReplication
23What does DNA stand for?
- ADeoxyribonucleic acid
- BDeoxixribonucleic acid
- CDeoxinucleic acid
24What is tRNA?
- Asmall RNA molecules containing 75 to 95 nucleotides and carriers of amino acids and participate in protein synthesis.
- Bthe transcriptional blue print for a protein that is used to code the proteins structure
- Cused to make copies of DNA during replication
25Which of these occur inside the nucleus?
- Areplication
- Btranscription
- Ctranslation
26________: long chains of DNA wrapped around each other. DNA exists like this only during limited periods of the cells life, and DNA is not really usable in this bundled structure.
- AChromosome
- BChromatin
- CChromatid
27_______: how DNA usually exists within the cell, in a loose, usable state within the nucleus. DNA + Structural Proteins (such as histones).
- AChromasome
- BChromatin
- CChromatid
28Comes from a word that means "color"
- A"chromo"
- B"some"
29Comes from a word that means "body"
- A"Chromo"
- B"Some"
30A structural protein that DNA is wrapped around in the nucleus:
- Ahistone
- Bhistamine
- Chelicase
31_______: is an element/part of a chromosome, and is usually joined to another of itself by the centromere of a chromosome.
- Achromatin
- Bchromatid
Informações
- Descrição
- Notes Taken From Khan Academy Videos for Cellular and Molecular Biology series.
- Autor
- erica_dietlein
- Idioma
- English
- Visualizações
- 153
- Etiquetas
- Avaliação
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