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80 Cards in this Set
- Front
- Back
- 3rd side (hint)
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True or false? S-cyclin binds to cyclin-dependent kinase to promote movement into the s-phase of the cell. |
True |
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During the development of cancer apoptosis is... A) activated B) enhanced C) inhibited D) balanced with cell death |
C) inhibited |
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True or false? The outer leaflet of the nuclear envelope is studded with ribosomes. |
True |
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Which of the following movements are characteristics of phospholipids in an artificial lipid bilayer? A) flexing hydrocarbon tails B) lateral diffusion C) spinning on their vertical axis D) spinning on their horizontal axis E) flipping from one leaflet of the bilayer to the other |
A) flexing hydrocarbon tails B) lateral diffusion C) spinning on their vertical axis |
Artificial lipid bilayer = one without proteins There is more than one correct answer |
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Where does the Calvin Cycle take place? A) the chloroplast grana B) the mitochondrial matrix C) the chlproplast stroma D) the mitochondrial cristae |
C) the chloroplast stroma |
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Which of the following are NOT components of G-coupled receptors? A) receptor proteins B) G-protein C) enzyme D) microtubules |
D) microtubules |
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An apoptotic body is... A) membrane bound bodies containing organelles derived from a cell B) membrane bound bodies without organelles C) necrotic cells D) Blebs that do not contain organelles |
A) membrane bound bodies containing organelles derived from a cell |
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True or false? The cytoskeleton is responsible for changing cell shape. |
True |
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During the development of a frog from a tadpole, apoptosis is responsible for... A) growth of the legs B) growth of the digits C) loss of the tail D) growth of the tail |
C) loss of the tail |
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True or false? Proteins are delivered to the cytosol, peroxisomes, mitochondria and plastid organelles via the post translational protein transport pathway. |
True |
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Which of the following replicate by binary fission, like prokaryotes? A) lysosomes B) contractile vacuoles C) mitochondria D) chloroplasts |
C) mitochondria D) chloroplasts |
More than one answer |
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Which of the following does NOT occur during programmed cell death? A) membrane blebbing B) cell shrinkage C) loss of peripheral cell structure D) cell swelling E) dissociation from neighbouring cells |
D) cell swelling |
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Which of the following are functions of the rough endoplasmic reticulum? A) protein modification B) protein folding C) synthesis of lipids D) storing pools of calcium ions |
A) protein modification B) protein folding |
More than one answer |
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Which of the following are polymer components of the plasma membrane? A) phospholipids B) glycolipids C) integral proteins D) glycoproteins E) peripheral proteins |
A) phospholipids B) glycolipids C) integral proteins D) glycoproteins E) peripheral proteins |
More than one answer |
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During the development of AIDS, apoptosis of immune cells is... A) decreased B) balanced with cell proliferation C) increased D) advantageous to health |
C) increased |
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Which of the following is NOT a function of the components of the eukaryotic plasma membrane? A) ATP synthesis B) nutrient transport C) cell signalling D) receptor-mediated endocytosis E) control of electrical potentials |
A) ATP synthesis |
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For cell cycle control, proteolysis is imporant in... A) s phase and driving DNA synthesis B) M phase and driving progerssiom through the metaphase-to-anaphase transition C) G1 phase and normal cell function D) G2 and cell growth |
B) M phase and driving progerssiom through the metaphase-to-anaphase transition |
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The secondary cell walls of the plant cells are made up of... A) carbohydrate fibres embedded in a proteoglycan gel B) protein fibres embedded in a proteoglycan gel C) carbohydrate fibres embedded in a polysaccharide gel D) protein fibres embedded in a polysaccharide gel E) mostly protein fibres embedded in a lipid matrix |
C) carbohydrate fibres embedded in a polysaccharide gel |
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True or false? Chromosomes appear as paired chromatids throughout the cell cycle, and are particularly apparent when DNA is being transcribed during interphase. |
False |
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In which of the following organelles do you find an electron transport chain? A) nucleus B) endoplasmic reticulum C) golgi apparatus D) mitochondria E) chloroplast F) central vacuole |
D) mitochondria E) chloroplast |
More than one answer |
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Which of the following terms describes the coupled transport in the plasma membrane that pumps sodium ions out of the cell and potassium ions into the cytosol? A) antiport B) uniport C) symport D) airport E) contrport |
A) antiport |
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.......... RNA is transcribed and assembled in the nucleolus. A) transfer B) ribosomal C) intron D) exon E) reticulum F) cisternal |
B) ribosomal |
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Hetero chromatin is ... A) transcrptionally inactive B) transcriptionally active C) dispersed before cell division D) where ribosomal RNA is processed |
A) transcrptionally inactive |
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Microtubules are.... A) a helical polymer of tubulin monomers B) a tube of tubulin monomers C) a fibre of fibrous proteins D) a component of the leading edge of the cell |
B) a tube of tubulin monomers |
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True or False? The stages of apoptosis include cell shrinking |
True |
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Which of the following terms refers to the process by which cells undergo programmed cell death? A) sclerosis B) apoptosis C) necrosis D) myxomatosis E) osmosis |
B) apoptosis |
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What kind of microscopy would you use to look at ultrathin slices of tissue to examine the different structure of the cristae of mitochondria? A) phase contrast B) differential interference contrast C) scanning electron D) transmission electron |
Transmission electron |
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Which of the following membranes let molecules less than 10000a.m.u (10kDa) pass through by diffusion, i.e. without active transport intermediates? A) the outer membrane of the mitochondria B) the inner membrane of the mitochondria C) the outer membrane of the chloroplast D) the inner membrane of the chloroplast |
A) the outer membrane of the mitochondria C) the outer membrane of the chloroplast |
More than one answer |
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True or false? Cell death is required in removal of non-funtioning immune cells. |
True |
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True or false? Cell death is required in mitosis. |
False |
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True or false? The stages of apoptosis include enzyme leakage into tissues. |
False |
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True or false? Deoxyribonucleic acid includes within its molecular structure sugar phosphate backbones. |
True |
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True or false? Cell death is required in meiosis. |
False |
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True or false? The central vacuole can use osmosis to regulated the water content of a plant cell; if there is too little water in the cytosol of a plant cell, the central vacuole pumps potassium ions across the tonoplast from the cytosol into the vacuole. |
False |
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True or false? When apoptosis is inhibited a tumour can develop. |
True |
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True or false? Chromosomes contain genes that encode different characteristics. |
True |
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True or false? Deoxyribonucleic acid includes within its molecular structure two polynucleotide chains. |
True |
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True or false? Chromosomes consist of DNA alone |
False |
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Which of the following are part of the eukaryotic endomembrane system? A) mitochondria B) smooth endoplasmic reticulum C) golgi apparatus D) nucleolus |
B) smooth endoplasmic reticulum C) golgi apparatus |
More than one answer |
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Which of the following metabolic pathways takes place in the mitochondria matrix? A) calvin cycle B) glycolysis C) kreb's (citric acid) cycle D) hydrogen peroxide degradation |
C) kreb's (citric acid) cycle |
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Which of the following are components of plant cell walls? A) cellulose B) elastin C) pectin D) glycosaminoglycans (GAGs) E) hemicellulose |
A) cellulose C) pectin E) hemicellulose |
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Mannose-6-phosphate is a molecular address label which directs protein to the lysosome. Which of the followinf enzymes would be labled with mannose-6-phosphate? A) peroxides B) ATP symthases C) acid hydrolases D) rubisco ( ribulose 1,5-biphosphate carboxylase) |
C) acid hydrolases |
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Why are phospholipids put together in the membrane of the smooth endoplasmic reticulum? A) because they have stop transfer signals B) because they are hydrophobic C) because they have a signal sequence recognised by the signal recognition particle D) because they are hydrophilic |
B) because they are hydrophobic |
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The area of the cell in which ribosomes are manufactured is called... A) the nucleoplasm B) the ERGIC C) the nucleolus D) the rough endoplasmic reticulum |
C) the nucleolus |
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Secreted hormones, which are released when the cell receives an appropriate signal, would exit the cell via which of the following pathways? A) phagocytosis B) endocytosis C) the constitutive secretory pathway D) the regulated secretory pathway |
D) the regulated secretory pathway |
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True or false? Both the crisrae of the mitochondria and the thylakoid membranes of the chloroplasts carry molecular complexes which host electron transport chains. |
True |
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True or false? The nuclear pores connect to the interior of the golgi apparatus. |
False |
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True or false? Cell death is required in the tissue remodelling. |
True |
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True or false? Chromosomes consists of 2 attached chromatids at the end of the cell cycle |
True |
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True or false? Cell death is required in the removal of cancer cells. |
True |
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True or false? The stages of apoptosis include blebbing of the cell membrane. |
True |
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True or false? The cell wall of plants is similar to the extracellular matrix in that it is constructed of crosslinked protein fibres in pectin gel. |
False |
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True or false? When apoptosis is inhibited cells die. |
False |
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Which of the following types of molecules find it easiest to trsnsfer across a lipid bilayer (with no transport proteins) A) small, non-polar, uncharged molecules e.g carbon dioxide B) large, uncharged, polar molecules e.g amino acids C) small, polar, uncharged molecules e.g water D) ions e.g chloride ion |
A) small, non-polar, uncharged molecules e.g carbon dioxide |
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Which of the following techniques could you use to label components of cells observed with confocal UV (ultraviolet light source) microscope? A) gram staining B) immunofluorescence labelling C) vital fluorescent dyes D) immunogold labelling E) transfection woth green fluorescent protein |
B) immunofluorescence labelling C) vital fluorescent dyes E) transfection with green fluorescent protein |
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True or false? Chromosomes consist of 2 attached chromatids at the start of the cell cycle. |
False |
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True or false? The stages of apoptosis include cell growth |
False |
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True or false? Chromosomes consist of DNA and protein. |
True |
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True or false? Transmission electron microscope images of bacteria show that they also have a nucleus surrounded by s nuclear envelope, but lack multiple chromosomes. |
False |
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Which of the following molecules would have a N terminal sequence by the signal recognition particle (SRP)? A) mitochondrial porins B) receptors destined for the plasma membrane C) enzymes destined for the cytosol D) mannose -6-phosphate |
B) receptors destined for the plasma membrane |
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True and false? Deoxyribonucleic acid includes within its molecular structure protein subunits. |
False |
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True and false? Lysosomes are responsible for adding molecular labels to protein and directing molecules to appropriate transport vesicles. |
False |
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Which of the following sizes of molecules would require active transport, using energy from the hydrolysis of ATP, to cross the nuclear membrane via nuclear pore? A) 5000a.m.u (5kDa) B) 17000a.m.u (17kDa) C) 44000a.m.u (44kDa) D) 70000a.m.u (70kDa) |
D) 70000a.m.u (70kDa) |
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True or false? When apoptosis is inhibited cells may tend to proliferate. |
True |
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Which of the following is are functions of the peroxisome organelle? A) oxidation reaction producing H2O2 B) synthesis of lipids C) oxidative phosphorylation to produce ATP D) electron transport |
A) oxidation reaction producing H2O2 B) synthesis of lipids |
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Which of the following microscope options would you use to look at a histological sample of canerous tissue, strained with eosin? A) transmitted light microscope on a bright field setting B) transmitted light microscope on a Normaski DIC setting C) conventional fluorescent microscope using standard UV filter D) scanning electron microscope with an environmental chamber |
A) transmitted light microscope on a bright field setting |
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True or false? When apoptosis is inhibited a new zygote is formed. |
False |
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Which of the following are destinations of the co-translational protein pathway? A) lysosome B) the cytosol C) peroxisomes D) the plasma membrane |
A) lysosome D) the plasma membrane |
There is more than one answer |
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True or false? Because eukaryotic cells keep their DNA enclosed in a separate compartment i.e. the nucleus, translation of the genetic code cannot start until transcription has finished. |
True |
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True or false? The signal recognition particle (SRP) is responsible for directing mRNA transcripts to ribosomes free in the cytosol and therefore the post translational pathway. |
False |
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True or false? Chromosomes exist in homologous pairs in diploid cells. |
True |
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True or false? Cell death is required in the fertilization of an egg. |
False |
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True or false? Deoxyribonucleic acid includes within its structure two different bases. |
False |
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Which of the following nucleotide bases found in DNA bind with Adenine? A) Thymine B) Cytosine C) Adenine D) Guanine |
A) Thymine |
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True or false? The stages of apoptosis include cell proliferation. |
False |
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True or false? Deoxyribonucleic acid includes within its molecular structure four different bases. |
True |
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True or false? Deoxyribonucleic acid includes within its molecular structure four polynucleotide chains. |
False |
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True or false? Deoxyribonucleic acid includes within its molecular structure two polynucleotide chains. |
True |
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You want to examine the surface topography of a freeze fracture specimen, which should show you the distribution of integral membrane proteins in organelle membranes, which of the following microscopes would you use? A) transmission electron microscope B) scanning electron microscope C) confocal UV (ultraviolet light source) microscope D) digital light microscope |
B) scanning electron microscope |
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In which of the following organelles do you find DNA? A) the nucleus B) mitochondria C) peroxisomes D) chloroplast |
A) the nucleus B) mitochondria D) chloroplast |
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