Chem Test

Question 1

How many bonds would the molecule P2 have between each element and why?

Answer 1

Triple bond between the 2 P’s

Question 2

Fully explain what immediately happens to the single O in the equation H2+O2 –> H2O+O?

Answer 2

Oxygen needs 2 more neutrons so it immediately takes in H2 and forms H2O

Question 3

Is blood pH acidic or basic?

Answer 3

Slightly Acidic

Question 4

What is the homeostatic of pH

Answer 4

0-7

Question 5

What are the 2 buffers used to maintain this pH range? 1st- H2CO3and 2nd- HCO3-

Answer 5

Carbonic acid and bicarbonate ion

Question 6

The blood has become too acidic. is the pH number too high or too low?

Answer 6

Too low (it will use bicarbonate ion as a buffer)

Question 7

The blood has become too basic. is the pH number too high or too low?

Answer 7

Too high (it will use carbonic acid as a buffer)

Question 8

Why is an —> used instead of an - in chemical equations?

Answer 8

You are not equalling anything you are turning it into the correct formula

Question 9

What particle makes H3O+ different from H2O?

Answer 9

It has an added proton

Question 10

What particle makes OH- different from H2O?

Answer 10

An electron was taken away

Question 11

What is the name of H3O and OH-

Answer 11

hydronium ion and hydroxide ion

Question 12

Is methylamine an acid or base?

Answer 12

Base

Question 13

Which of the following shows the balance of the water solution now that methylamine has been added?

Answer 13

[H+]=[OH-] and [H+]<[OH-]

Question 14

What is the pH of the water and methylamine solution?

Answer 14

pH<7

Question 15

Oxygen-
1. Atomic #
2. Atomic weight
3. how many subatomic particles make up the atomic #
4. how many subatomic particles make up the atomic weight
5. How many valence Electrons does oxygen have
6. how many bonds can it form

Answer 15

1. 8
2. 16
3. Protons
4. Protons and Neutrons
5. 6
6. 2

Question 16

Rough and Smooth Endoplasmic Reticulum

Answer 16

Network of tubes, can have ribosomes attached, make lipids, and proteins

Synthesis

Question 17

Ribosome

Answer 17

Make proteins

Synthesis

Question 18

Mitochondria

Answer 18

Powerhouse, provides energy

Metabolism, synthesis

Question 19

Cell Membrane

Answer 19

Controls movement of material in and out of cell

Transport, respiration

Question 20

Cytoplasm

Answer 20

Gel-like fluid, provides cell structure

Regulation

Question 21

Lysosome

Answer 21

Breaks down cell debris, worn out organelles

Excretion, Transport, Secretion, regulation, synthesis, assimilation

Question 22

Centriole

Answer 22

Structural support during mitosis (asexual reproduction) in animal cells

Reproduction

Question 23

Golgi Apparatus

Answer 23

Stores, modifies and packages proteins

Regulation, transport, assimilation

Question 24

Nucleus

Answer 24

Control center, the “brain”; has DNA

Assimilation, Nutrition, regulation, reproduction

Question 25

Chloroplast

Answer 25

Takes in sunlight, used in photosynthesis in plants Synthesis

Question 26

Vacuole

Answer 26

Storage for cell Regulation, transport, nutrition, metabolism, secretion

Question 27

Cell Wall

Answer 27

Rigid, only found in plants, protects and gives shape Assimilation

Question 28

Respiratory

Answer 28

Provide oxygen to bloodstream to be used in the cells to generate energy from food Respiration

Question 29

Skeletal

Answer 29

Support body, facilitate movement, protect internal organs, storage of minerals and fat, formation of blood cells Assimilation

Question 30

Circulatory

Answer 30

Carries oxygen, nutrients, and hormones to cells, and removes waste products, such as carbon dioxide Excretion, Secretion, Transport, and Regulation

Question 31

Digestive

Answer 31

Breakdown of food into smaller components until they can be absorbed and assimilated into the body Assimilation

Question 32

Endocrine

Answer 32

Produce hormones that regulate metabolism, growth and development, tissue function, sleep, mood, etc. Synthesis, Metabolism, and Regulation

Question 33

Nervous

Answer 33

Transport nerve impulses between parts of the body Transport

Question 34

Muscular

Answer 34

Permits movement of the body, maintains posture and circulates blood throughout the body Secretion and Transport

Question 35

Lymphatic/Immune

Answer 35

Transport lymph, a fluid containing infection-fighting white blood cells, throughout the body to rid the body of toxins, waste, and other unwanted materials Excretion, Secretion, and Transport

Question 36

Reproductive

Answer 36

Ensure survival of the species Reproduction

Question 37

Integumentary (skin)

Answer 37

Protect the body from damage, such as water loss Assimilation

Question 38

Urinary/Renal

Answer 38

Eliminate waste from the body, regulate blood volume and pressure, and regulate blood pH Excretion and Regulation

Question 39

Carbohydrates: 1. Monomer 2. Structure and function 3. How is it obtain

Answer 39

1. Monosaccharides 2. Energy and Structure 3. Through food like Pasta and Bread

Question 40

Lipids: 1. Monomer 2. Structure and function 3. How is it obtain

Answer 40

1. Phospholipids,steroids/cholesterol, triglycerides 2. Cell membrane, cushion, hormones, insulation, long term energy storage 3. Through eating foods that contain Butter and Oil

Question 41

Proteins: 1. Monomer 2. Structure and function 4. Enzymes 5. How is it obtain

Answer 41

1. Amino acids 2. 3. Works in the immune system, muscle development 4. Enzymes 5. Through eating meats and beans

Question 42

Nucleic Acids: 1. Monomer 2. Structure and function 3. How is it obtain

Answer 42

1. DNA, RNA 2. Middle of double helix, DNA- stores genetic info, RNA- makes proteins 3. When you consume fruits like strawberries.

Question 43

What is a monomer?

Answer 43

A building block

Question 44

What is a polymer?

Answer 44

Many linked building blocks

Question 45

Carbon-structure and function of importance: 1. Why is it the backbone of life 2. what are the Bonds

Answer 45

1. it can form 4 bonds, have many different shapes, and long chained branches. 2. Bonds- Single, Double, and Triplet

Question 46

Atoms

Answer 46

Neutrons, electrons, protons

Question 47

Valence electrons

Answer 47

electrons that are located in the outer part of the electron shell of an atom

Question 48

Bonding

Answer 48

When you share or gain electrons with another element

Question 49

Bonds form when atoms share or transfer valence electrons

Answer 49

atom/group of atoms that has an electrical charge

Question 50

Isotopes

Answer 50

Atoms with the same number of proton but a different number of neutrons

Question 51

What is Dehydration Synthesis?

Answer 51

they make and produce water

Question 52

What is Hydrolysis?

Answer 52

they break and use water