NY State Lab Quiz

During the lab experiment a student took his resting pulse rate, counting 23 beast in 20 seconds. The student exercise for several minutes. The student's pulse was taken immediately after the exercise. The graph shows the changes in pulse rate. What was the students resting pulse rate in beats per minute?

• 23 beats per minute

• 63 beats per minute

• 46 beats per minute

• 69 beats per minute

A student lifted weights after school and found that his muscles started to burn. He couldn't continue to lift the weights after prolonged exercising. This muscle fatigue is due to

• the heart beating too fast and tiring out

• the lungs accumulating oxygen

• lack of oxygen and build up of waste in the muscles

• lack of carbon dioxide in the muscles

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Base answers to 3 and 4 on the information below:

A student is opening and closing clothespins as part of a lab activity. The student begins to experience muscle fatigue, and the rate at which the student is opening and closing the clothespins slows. The fatigue is due to

• a decrease in pulse rate of the students.

• a decrease of metabolic waste products in the muscles

• an increase in the pulse rate of the student

• an increase in the metabolic wastes products in the muscles

Tags

NGSS.HS-LS1-7

NGSS.HS-LS1-3

In order for the muscle fatigue to end, the muscle cells must be provided with

• nitrogen

• carbon dioxide

• amino acids

• oxygen

Tags

NGSS.HS-LS1-7

The histogram includes data from a total of how many students?

• 6

• 7

• 20

• 27

In an experiment to determine the effect of exercise on pulse rate, a student checks his pulse rate before and after exercising for several minutes. The purpose for checking his pulse rate before exercising is that it

• is needed to justify the sample size

• serves as the conclusion for the experiment

• serves as the control for the experiment

• is needed to formulate the hypothesis

A student hypothesized that drinking tea would cause an increase in his pulse rate. He measured is pulse 20 minutes after drinking tea. It was 86 beats per minute. An error of this experiment is

• he did not formulate a hypothesis

• he did not collect the data after he drank coffee

• he did not collect his pulse rate before drinking his tea

• he used two control groups

In the lab activity Making Connections, an experiment was designed to test the effect of exercise on the ability to squeeze a clothespin. The number of times the clothespin was squeezed served as the

• control

• hypothesis

• independent variable

• dependent variable

What is a reliable way to test the following statement made by a student that suggests-watching exciting sports on television will increase pulse rate

• have 100 students watch exciting sports and record their pulse rates

• have 100 students watch exciting sports and record their pulse rate before watching and after watching exciting sports

• have 100 students watch exciting sports and 100 students sleep

• record the pulse rate after watching exciting sports to see if pulse rate increased

Tags

NGSS.HS-LS1-3

What is the average pulse of these 5 students 
Student A is 70 beats/min
Student B is 74 beats/mins 
Student C is 83 beats/mins
Student D is 60 beats/mins
Student E is 78 beats/min

• 73 beats/min

• 74 beats/min

• 85 beats/min

• 75 beats/min