Energy is carried from the light reactions to the carbon reactions by __________.

A. water
B. PGAL
C. chlorophyll
D. oxygen
E. ATP and NADPH


E. ATP and NADPH

Biology & Microbiology

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Which of the following is typical of cancer cells?

a. Products of oncogenes inhibit mitosis. b. Benign tumors invade normal tissue. c. Malignant cells migrate. d. Cancer cells lose the ability to divide. e. The parent cell of the tumor contains a single mutation in a single checkpoint gene.

Biology & Microbiology

The accompanying figure is a micrograph of what kind of tissue?

a. cardiac muscle b. skeletal muscle c. smooth muscle d. cartilage e. dense connective

Biology & Microbiology

Humans who have mutations in the presenilin genes are at a higher risk for developing early-onset Alzheimer's disease

The human presenilin proteins that are made from these genes are responsible for altering other proteins by cleaving (cutting) them at specific positions. Presenilin proteins that are highly similar to the human ones have been identified in C. elegans, a microscopic nematode worm. These nematodes do not get Alzheimer's disease, as they do not have a brain. What would you expect the function of nematode presenilins to be? A) They are responsible for the development of the central nervous system. B) They are responsible for altering other proteins by cleaving them. C) They are responsible for transporting proteins to a new location within cells. D) They are responsible for the synthesis of new proteins.

Biology & Microbiology

When bacterial genes are transferred to another bacterium by a virus, it is called ________.

A. transfection B. conjugation C. transduction D. transformation

Biology & Microbiology