Which type of bioimaging technique is used to view the fine structures inside a chloroplast?
A. Transmission light microscope
B. Compound light microscope
C. X-ray crystallography
D. Scanning electron microscopy
E. Fluorescence microscopy
Ans: A. Transmission light microscope
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Which of the following animals has a gastrovascular cavity?
a. earthworm b. fish c. hydra d. insect e. sponge
Small hairlike structures made up of protein on the surface of bacteria are called:a
capsids. b. fimbriae. c. chromatids. d. plasmids. e. virons.
What is/are characteristic(s) of EPSPs and IPSPs?
a. EPSPs and IPSPs do not influence action potentials. b. EPSPs and IPSPs are graded potentials. c. EPSPs and IPSPs occur via an all-or-none response. d. EPSPs are fast action potentials; IPSPs are slow action potentials. e. EPSPs occur in myelinated axons; IPSPs occur in unmyelinated axons.
The FIRST step in the Krebs cycle is combination of an acetyl group with oxaloacetic acid, leading to the formation of
a) lactic acid. b) pyruvic acid. c) citric acid. d) acetyl CoA.