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Flashcards in 6 - Cellular Level of the Body Deck (75)
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1

Energy for many of the body's processes is supplied by ________

ATP

2

______ is the study of the structure of cells.

Cellology

3

The genetic information of cells is encoded in _______

DNA

4

Most chemical activities fo the cells take place in the ______

Cytoplasm

5

The splitting of a compound into fragments by adding water is called ______

Hydrolysis

6

Special structures in the cell that perform specific functions.

Organelles

7

Mitosis results in _______

Two daughter cells

8

Lou Gehrig disease is also known as _______

Amyotrophic lateral sclerosis

9

Which of the following affects people of African descent?

Sickle cell anemia

10

Genetic information is transferred from DNA to the cytoplasm by ______

RNA

11

The _______ is the control center of the cell.

Nucleus

12

A birth defect due to both parents having an abnormal gene is referred to as ______

Recessive inheritance

13

The human genome contains _____ pairs of chromosomes.

23

14

A ____ cell contains a single set of chromosomes.

Haploid

15

Every cell in the body has ____ genes.

50,000+

16

The smallest membrane-enclosed compartment that can sustain life independent of other entities.

Cell

17

The study of the structure and function of cells.

Cytology

18

Another term for cytology.

Cell physiology

19

A protective barrier and a communicator between the environments inside and outside of the cell.

Plasma membrane

20

When the plasma membrane regulates what substances may enter or exit the cell.

Selectively permeable

21

A process during which molecules or ions spread from an area of low concentration to an area of high concentration until the concentration is the same throughout the cell.

Diffusion

22

When a substance is diffusing across a semipermeable membrane

Passive transport

23

The energy-requiring movement of ions, nutrients and molecules across the plasma membrane from an area of low concentration to an area of high concentration, against the substance's concentration gradient.

Active transport

24

Cell division is sometimes referred to as _______

Proliferation

25

A ______ is a segment of the cell's DNA.

Gene

26

A form of nuclear division in which there are actually two successive divisions without involving and chromosome replication.

Meiosis

27

During meiosis, it results in the formation of 4 daughter cells, each of which are called _______

Haploid

28

The union of an egg and sperm during fertilization yields a ______ egg, with a full set of paired chromosomes.

Diploid

29

The planned death of cells, programmed genetically during different stages of development.

Apoptosis

30

A grooved passage composed of proteins that allow substances to flow in and out of the cell.

Channel