MCAT Biology 2
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MCAT Biology 2
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25 Questions

1. A complex carbohydrate found chiefly in seeds - fruits - tubers - roots and stem pith of plants - notably in corn - potatoes - wheat - and rice. Forms include amylose and amylopectin

2. The part of the small intestine between the duodenum and the ileum

3. Human Chorionic Gonadotropin - a hormone secreted by the trophoblast cells of a blasocyst (i.e. developing embryo) that prolongs the life of the corpus luteum - and thus increases the duration and amount of secreted progesterone. This helps to mainta

4. Gland that secretes pancreatic juice into the duodenum - where it mixes with bile to digest food

5. Volume of blood pumped by one ventricle per minute; stroke volume x heart rate

6. Holds fluid which lubricates joints and decreases friction between joints.

7. Excited electrons are passed from protein to protein in the thylakoid membrane

8. Support sperm formation; development and maintenance of male secondary sex characteristics

9. Lymphocytes that inhibit helper T cells and cytotoxic cells by negative feedback. They also prevent B lymphocytes from transforming into plasma cells. These cells provide the means by which the immune response can be shut down

10. The larger of the two component polypeptides of an immunoglobulin molecule. Heavy chains come in a variety of heavy- chain classes or isotypes - each of which confers a distinctive effector function on the antibody molecule.

11. Connective tissue cells that produce fibrous components of extracellular matrix like collagen and elastin

12. The X- shaped - microscopically visible region representing homologous chromatids that have exchanged genetic material through crossing over during meiosis.

13. Tissue that connects muscle to bone

14. A period after firing when a neuron is returning to its normal polarize state and will only fire again if the incoming message open parentheses impulse) is stronger than usual; returning to arresting state

15. The body system that consists of the heart - blood vessels - and blood - and that carries needed substances to cells and carries waste products away from cells

16. The side by side pairing of homologous maternal and paternal chromosomes at the start of meiosis

17. A flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates

18. Either of a pair of thick - walled tubes that carry urine from the kidney to the urinary bladder

19. Covalent bond formed between amino acids

20. Whiplike tails found in one - celled organisms to aid in movement

21. Bone marrow that is yellow with fat; found at the ends of long bones in adults

22. Causes bends/kinks in the protein - ring structured R group - linking carboxylic acid to amine group.

23. A vessel in Which blood circulates

24. Simplest starch which is a long unbranching chain of glucose molecules has the same alpha linkages as glycogen

25. Mature spermatids that are fully functional and capable of fertilizing a human ovum

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