Bio 121 Final Exam Prep

Question 1

Scientific Method(6 steps)

Answer 1

1.Ask a question
2.Conduct basic research
3.Construct a hypothesis
4.Test the prediction
5.Analyze data and draw conclusions
6.Communicate Results

Question 2

Null hypothesis

Answer 2

No difference between groups or there is no relationship between variables

Question 3

Alternative hypothesis

Answer 3

What you think might be happening

Question 4

T-test

Answer 4

the difference between 2 groups or a group and a standard value is statistically significant

Question 5

Pearson correlation

Answer 5

measures the strength of the linear relationship between 2 variables

Question 6

Scatterplot

Answer 6

Use dots to represent values for 2 different numeric variables

Question 7

Bar graph

Answer 7

plots numeric values for levels of a categorical feature as bars

Question 8

Diabetes symptoms

Answer 8

Urinating often, feeling very thirsty, very hungry even after eating, extreme fatigue, blurry vision, cut/bruises that heal slow, unintentional weight loss, tingling, pain or numbness in hands and feet

Question 9

Osmosis

Answer 9

movement of water through a membrane from a region of high water to low water concentration

Question 10

Hypertonic

Answer 10

High Blood sugar

Question 11

Hypotonic

Answer 11

Low Blood Sugar

Question 12

Role of Insulin and its pathway

Answer 12

Helps glucose from food get into your cells to be used for energy , Simple diffusion, facilitated diffusion and Active transport

Question 13

Simple Diffusion

Answer 13

Solute moves down its concentration gradient, from high to low concentration

Question 14

Facilitate Diffusion

Answer 14

Solute needs help from proteins to enter the cell, moving down the gradient, from high to low

Question 15

Active Transport

Answer 15

Moves substances against the gradient from low to high concentration

Question 16

Glycemic Index Factors

Answer 16

measuring how it affects blood sugar levels over time

Question 17

Macromolecules

Answer 17

Carbohydrates, lipid, protein and nucleic acid

Question 18

Testing Carbohydrates

Answer 18

Benedict’s Test( color change), Iodine Test ( starch solution)

Question 19

Testing Lipids

Answer 19

Sudan Iv test( if the red mixes or is clumpy)

Question 20

Testing Proteins

Answer 20

Biuret Test( blue/no protein, purple/ protein)

Question 21

Metabolism

Answer 21

the series of reactions and processes catalyzed by enzymes which together maintain life

Question 22

Crawfish Testing

Answer 22

tested by using the CO2 produced as a bi-product of the metabolic process

Question 23

Cellular Respiration Equation

Answer 23

Glucose & Oxygen(reactants) &raquo_space;Water, Carbon dioxide & Energy(products)

Question 24

Cellular Respiration Testing

Answer 24

Placing crawfish in a solution and seeing if the solution turns colors making the solution more acidic

Question 25

Photosynthesis

Answer 25

Water & Carbon Dioxide(reactants)&raquo_space;+light» Glucose & Oxygen(products)

Question 26

Photosynthesis Texting

Answer 26

Used different types of light to test the absorbance

Question 27

DNA analysis

Answer 27

a scientific tool that can be used for many purpose such as testing to see what kind of animal or person you are testing

Question 28

6 Steps

Answer 28

1.Sample Processing: Bushmeat Samples
2.Digestion & Extraction:
3.Polymerase chain reaction: copies of original DNA strands
4.Gel Electrophoresis: separate DNA strands base on length
5.Sequencing: A=T, G=C
6.Blasting: Find what kind of DNA we have

Question 29

PCR

Answer 29

Polymerase chain reaction, makes copies of DNA fragment from 1 original copy

Question 30

Positive control

Answer 30

Salt, charged sodium ions

Question 31

Negative Control

Answer 31

Sugar phosphate backbone

Question 32

Electrophoresis

Answer 32

method used to separate DNA strands by size and determine the size of the separate strands by comparing them to strands of a known length

Question 33

Bushmeat

Answer 33

is meat from wild animals that are hunted and consumed by humans

Question 34

Bushmeat related to Covid 19

Answer 34

Wild animals hold many diseases. When the people started to kill and eat the animals the humans then became affected by these diseases and that started to get really sick and die. Poaching of elephants can create an increase in cases of COVID 19

Question 35

DNA Processing

Answer 35

Sequencing and Blasting