Quarter 1 Biology Exam Study Guide

Question 1

List all of the characteristics shared by all living things.

Answer 1

Cells, Reproduce, Homeostasis, Grow and Develop, Respond, Evolution, Metabolism, and DNA

Question 2

Describe homeostasis.

Answer 2

A characteristic of a system that regulates its internal environment and tends to maintain a stable, relatively constant condition of properties.

Question 3

Put following in order from smalllest to largest;

tissue, organ, organism, cell, organ system

Answer 3

cell, tissue, organ, organ system, organism

Question 4

List the 3 parts of the atom.

Answer 4

Protons, Neutrons, and Electrons

Question 5

What is the charge of each part of the atom?

Answer 5

Protons (+) Neutrons (neutral) Electrons (-)

Question 6

Where is each part in relation to the whole atom?

Answer 6

The protons and neutrons are in the middle with the nucleus, and electrons are on the outside floating around the cell.

Question 7

What is an ionic bond? Example.

Answer 7

When elctrons are moved from one place to another.

Example; table salt

Question 8

What is an ion?

Answer 8

Atoms with a charge one with more elctrons or one with more protons. Formed by ionic bonds.

Question 9

What is a covalent bond? Example.

Answer 9

Shares electrons.

Example; water

Question 10

What are valence electrons?

Answer 10

Involved in forming bonds, outer shell.

Question 11

What is the octet rule?

Answer 11

Atoms tend to form bonds to equal 8 valence electrons.

Except; hydrogen

Question 12

What does polar molecule mean?

Answer 12

Partial positive and partial negative charge.

Question 13

Where do hydrogen bonds form?

Answer 13

water

Question 14

Properties of Water

Answer 14

Surface Tension, Adhesion, Cohesion, Resist temp. change, pH, ice floats

Question 15

Proteins monomer

Answer 15

amino acids (chons)

Question 16

Carbohydrates monomer

Answer 16

glucose (cho)

Question 17

Lipids monomer

Answer 17

tryglycerides (cho)

Question 18

Nucleic Acids monomer

Answer 18

nucleotides (chonp)

Question 19

Monomer

Answer 19

one that can be bonded

Question 20

Polymer

Answer 20

many

Question 21

Saturated Fats

Answer 21

single bonds

Question 22

Unsaturated Fats

Answer 22

double bonds

Question 23

Enzymes

Answer 23

speed up chemical reaction

Question 24

What biomolecule are enzymes made up of?

Answer 24

Proteins

Question 25

What are 3 basic components of cell theory?

Answer 25

1) all living things are made up of cells. 2) a cell is the smallest unit in a living thing. 3) all cells come from other cells.

Question 26

Selective Permeability | Which does it let in easily?

Answer 26

only lets some in and out | O2 and CO2

Question 27

Diffusion

Answer 27

random movement of particles from an area of high concentration to an area of low concentration

Question 28

Passive Transport | What are the 3 types?

Answer 28

cell doesn't use energy | Diffusion, Facilitated Diffusion, Osmosis

Question 29

Concentration Gradient

Answer 29

change in concentration from one area to another

Question 30

Facilitated Diffusion | How is this different from simple diffusion?

Answer 30

diffusion of specific particles through transport proteins found in the membrane diffusion moves down facilitated moves up

Question 31

Osmosis

Answer 31

diffusion of water through a selectively permeable membrane

Question 32

Active Transport | What sre 3 types?

Answer 32

uses energy | Protein Pumps, Endocytosis, Exocytosis

Question 33

Endocytosis

Answer 33

taking bulky material into cell

Question 34

Exocytosis

Answer 34

forces material out of cell in bulk

Question 35

Independent

Answer 35

cause

Question 36

Dependent

Answer 36

affect