Short actin filaments bind to tetramers of which protein to form the cytoskeleton of erythrocytes?

a. Myosin
b. alpha-actinin
c. Spectrin
d. Ankyrin
e. Arp2/3


Ans: c. Spectrin

Biology & Microbiology

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Cellular respiration occurs in the

a. nucleus. b. chloroplasts. c. flagella. d. mitochondria. e. cell membranes.

Biology & Microbiology

Synapse in which neurotransmitters decrease the chance of an action potential on the postsynaptic cell. _____ 2) Synapse in which neurotransmitters allow sodium to enter the postsynaptic cell. _____ 3) A specific type of neuron that conducts information toward the brain and spinal cord from a sensory receptor. _____ 4) The junction between a neuron and another cell. _____ 5) The short branching projections of a neuron, which provide surface area for sending and receiving signals from other cells. _____

A) Inhibitory synapse B) Synapse C) Sensory neuron D) Synaptic knobs E) Dendrite F) Axon G) Motor neuron H) Interneurons I) Ion channels J) Excitatory synapse

Biology & Microbiology

Which of the following is an example of the use of the binomial system devised by Linnaeus?

A. O157:H7 B. Escherichia coli C. Enterobacteriaceae D. Enterobacteriales

Biology & Microbiology

Which of the following is a nonvascular plant? Select all that apply.A) mossB) gymnospermC) liverwortD) fernE) hornwort

What will be an ideal response?

Biology & Microbiology