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Flashcards in 1st Test Deck (33):
1

Bicarbonate ions are important because

they buffer the blood against pH swings

2

The main organelle that contains enzymes to break down alcohol

peroxisomes

3

cholesterol is not made from

steroid hormones

4

These cells do not reproduce in people older than small children

cardiac muscle cells

5

proteins that help with muscle movement

actin and myosin

6

Negative feedback mechanisms control

blood sugar levels and body temp

7

Turner's syndrome is resulted from what chromosomal problem

XO

8

Hooking glucose molecules together is which type of chemical reaction

synthesis

9

What provides an identification pattern for immune system cells to check?

Glycocalyx

10

Enzymes do what to the amount of activation energy

decrease

11

enzymes decrease the activation energy needed by

stretching the bonds in the substrate

12

For the birthing process you need?

brain or spinal cord, neurons to detect stretching, and smooth muscle to push

13

a person's mass is made up of 96% of elements except

calcium

14

Uric acid crystals in the cytoplasm are called

inclusions

15

lowest amount of hydrogen ions

bleach

16

which cell types have cilia in humans

cells lining the respiratory tract

17

what is the order (from smallest to largest) in parts of a body

subatomic particle, atom, molecule, organelle, cell, tissue, organ, organ system

18

used by cells to pump sodium out of the cell and potassium into the cell

active transport

19

the state of relative constancy in the body's internal enviornment

homeostasis

20

what can cause a protein to lose some of its secondary and tertiary structure making it lose its function

very high temp, blood pH getting too low or high

21

corn oil can be made into margarine by breaking the carbon double bonds by

hydrogenating (adding hydrogen) it

22

what radioisotope would be used to kill certain cancerous tumors

cobalt-60

23

DNA replicated during which part of the cell cycle

S phase

24

Atomic symbol "C" stands for

carbon

25

the cells in the intestine can't absorb enough nutrients because

microvilli are missing or deformed

26

an organic molecule that acts as a cofactor

vitamin

27

the ability for cells with the same genetic info to be able to differentiate into very different cells, both structurally and functionally, is due to

selective gene expression

28

what type of bond is there between the oxygen atom and a hydrogen atom that connects two water molecules

hydrogen bond

29

Adopted children from 3rd world countries can grow taller then their relative back home because

the diet in the U.S allows maximum growth based on height genes

30

If someone studies the tissue of the heart as well its branching cells and intercalated disks, then they are studying

microscopic anatomy

31

when DNA is duplicated, one strand is separated from the other strand by the enzyme

helicase

32

how do you find out the number of neutrons in an atom if you have the mass number and the atomic number

you subtract the atomic number from the mass number

33

which of the stages of mitosis occurs just before cytokineses and is when the chromosomes begin to uncoil

telophase