In eukaryotic cells, ribosomes have two locations: scattered free in the ________, and bound on the surface of the ________.

What will be an ideal response?


cytoplasm; rough endoplasmic reticulum

Biology & Microbiology

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Which glands regulate blood calcium levels and can number between two and six copies of the gland in any given individual?

a. thalamus b. pituitary c. parathyroid d. adrenal

Biology & Microbiology

In bryophytes, the rhizoids

a. serve as attachment structures. b. obtain nutrients. c. obtain water. d. lure possible prey. e. are involved in reproduction.

Biology & Microbiology

For most sexually reproducing organisms, Mendel's laws

A) cannot strictly account for the patterns of inheritance of many traits. B) explain the biological mechanisms behind why certain genes are dominant or recessive. C) help us understand the global geographic patterns of genetic disease. D) can predict whether offspring will be male or female with 100% accuracy.

Biology & Microbiology

Part of the reason for the charge difference inside and outside a neuron's membrane is:

A) positively charged proteins outside the membrane. B) positively charged proteins inside the membrane. C) excess potassium outside the membrane. D) excess sodium inside the membrane. E) negatively charged proteins inside the membrane.

Biology & Microbiology