Suppose that an equal amount of each polysaccharide was placed in a landfill. Which polysaccharide should last the

longest before it is decomposed?



a. chitin
b. amylopectin
c. cellulose
d. glycogen
e. amylose


ANSWER: c

Biology & Microbiology

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If the expression of the PHAN gene is blocked in plants, what will be the likely result?

A) Plants will fail to develop leaves. B) Plants will develop more leaves than usual. C) Plants will develop leaves in very simple shapes. D) Plants will develop leaves in inappropriate places.

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Which of the following proteins allow a plant to mount an immune response against a specific pathogen? Select all correct choices

A. flagellin receptors on the plasma membrane B. avirulence (AVR) proteins formed by pathogens C. resistance (R) proteins in the plant cytoplasm D. chitin receptors on the plasma membrane

Biology & Microbiology

Vascular plant cells generally have the ability to differentiate into various types of tissue–a fact long known to horticulturists who propagate plants by cuttings

This means that plants do not display the strict separation of germline and somatic cells that animals do. Might this be expected to accelerate or decelerate evolution in plants relative to animals?

Biology & Microbiology

What is a major difference between saturated and unsaturated fats?

A) At room temperature, saturated fats are liquid and unsaturated fats are solid. B) Unsaturated fats have a flat molecular structure, but saturated fats are kinked. C) Saturated fat molecules are packed together loosely, but unsaturated fats are tightly packed. D) Unsaturated fats contain carbon-to-carbon double bonds, but saturated fats don't.

Biology & Microbiology