Which of the following cytoskeleton proteins has a right-handed double helix structure with 13 protein subunits per turn
Actin microfilaments
1 of 20
Water passes quickly through cell membranes because
It moves through aquaporins in the membrane
2 of 20
Which of the following best describes the cross-section structure of the microtubules in the basal body of a cilia or flagella
9 triplets structure
3 of 20
The process of capturing energy by breaking down complex molecules into simpler molecules is called
Catabolism
4 of 20
Which of the following provides "walk ways" for organelles to follow in cytoplasmic streaming that can be observed in plant cells
Actin microfilaments
5 of 20
Which of the following is true of the evolution of cell membranes
All components of membranes evolve in response to natural selection
6 of 20
Which of the following types of movement DOES NOT involve interactions between dynein or kinesin motor proteins and microtubules
Formation of pseudopodia
7 of 20
Who described the "Fluid Mosaic Model" of cell membrane structure
Singer and Nicholson
8 of 20
All the reactions in Glycolysis take place in the
Cytosol
9 of 20
Which of the following are connected to Desmosome junction proteins
Intermediate filaments
10 of 20
Which of the following is NOT an intracellular compartment
Chromosome
11 of 20
Before entering the Kreb's cycle, pyruvate must be converted to
Acetyl CoA
12 of 20
Mammalian blood contains the equivalent of 0.15M NaCl. Seawater contains the equivalent of 0.45M NaCl. What will happen if red blood cells are transferred to seawater
Water will leave the cells, causing them to shrivel and collapse.
13 of 20
What best describes the cross-section structure of the microtubules in a cilia or flagella shaft (not the basal body)
9 doublets + 2 singlet structure
14 of 20
Which of the following cytoskeleton proteins has pairs of globular heads with intertwined tails that form the thick bipolar filaments in muscle sarcomeres
Myosin (Type II)
15 of 20
Which of the following statements is NOT CORRECT
Smooth endoplasmic reticulum is studded with ribosomes
16 of 20
Which of the following is unlikely to be found in a phagocytic vesicle in a macrophage
A healthy living cell
17 of 20
In the standard genetic code the start codon is
AUG
18 of 20
The simple order of steps for protein synthesis is
DNA - mRNA - Protein
19 of 20
Before protein synthesis can occur
tRNA must be charged by binding to their appropriate amino acid
20 of 20
Other cards in this set
Card 2
Front
Water passes quickly through cell membranes because
Back
It moves through aquaporins in the membrane
Card 3
Front
Which of the following best describes the cross-section structure of the microtubules in the basal body of a cilia or flagella
Back
Card 4
Front
The process of capturing energy by breaking down complex molecules into simpler molecules is called
Back
Card 5
Front
Which of the following provides "walk ways" for organelles to follow in cytoplasmic streaming that can be observed in plant cells
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