Grade 11 STEM Worksheet: Human Body Assessment Prep

Human Body Assessment Prep

Grade 11 STEM Human Body Assessment Prep Advanced 20 Questions 20 Views

Classroom Worksheet

Grade 11 STEM Worksheet: Human Body Assessment Prep

Human Body Assessment Prep

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Grade: Grade 11

Subject: STEM

Topic: Human Body

Time: 20 Minutes

Difficulty: Advanced

Questions: 20

Instructions:
Read each question carefully and answer in complete sentences or with clear calculations where needed. Show your work for any data-based or reasoning questions. The questions increase in difficulty from basic review to advanced application.

Skills Practiced:

Human Body
STEM
Critical Thinking
Problem Solving

1Question

Name the four main tissue types in the human body.

2Question

What is the primary function of the skeletal system?

3Question

Which organ system is responsible for transporting oxygen, nutrients, hormones, and wastes throughout the body?

4Question

Identify the chamber of the heart that pumps oxygenated blood to the body.

5Question

What is the role of red blood cells?

6Question

Explain the difference between arteries and veins.

7Question

What is the function of alveoli in the respiratory system?

8Question

Why is the small intestine important for digestion?

9Question

State the function of enzymes in the body.

10Question

What is homeostasis? Give one example.

11Question

Describe how the nervous system and endocrine system work together to maintain homeostasis.

12Question

A person’s heart rate increases during exercise. Explain why this happens.

13Question

If the diaphragm contracts, what happens to the volume of the thoracic cavity and air movement in the lungs?

14Question

Compare the functions of the kidneys and the liver in maintaining the body’s internal balance.

15Question

Why is the surface area of the small intestine important for absorption?

16Question

A student eats a meal high in carbohydrates. Describe the path of glucose from digestion to use by body cells.

17Question

Explain how the structure of a neuron supports its function.

18Question

How does the body respond to a drop in blood glucose after a long period without food?

19Question

A person has damage to the alveolar walls in the lungs. Predict how this may affect oxygen uptake and explain why.

20Question

A patient has a condition that prevents some heart valves from closing properly. Analyze how this could affect circulation and overall body function.

Answer Key

#	Answer
1	Epithelial tissue, connective tissue, muscle tissue, and nervous tissue.
2	It supports the body, protects organs, enables movement with muscles, stores minerals, and produces blood cells.
3	The circulatory system (cardiovascular system).
4	The left ventricle.
5	Red blood cells transport oxygen using hemoglobin and help carry some carbon dioxide back to the lungs.
6	Arteries carry blood away from the heart, usually under higher pressure; veins carry blood back to the heart and often contain valves to prevent backflow.
7	Alveoli are tiny air sacs where gas exchange occurs between air and blood: oxygen diffuses into the blood and carbon dioxide diffuses out.
8	It is the main site for chemical digestion and nutrient absorption into the bloodstream and lymphatic system.
9	Enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.
10	Homeostasis is the maintenance of stable internal conditions. Example: sweating helps regulate body temperature.
11	The nervous system provides rapid electrical signals for immediate responses, while the endocrine system releases hormones for slower, longer-lasting regulation. Together they coordinate processes such as temperature control, blood glucose regulation, and stress responses.
12	During exercise, muscles need more oxygen and nutrients and produce more carbon dioxide and wastes. The heart rate increases to pump blood faster and meet these higher metabolic demands.
13	The thoracic cavity volume increases, pressure decreases, and air moves into the lungs during inhalation.
14	The kidneys filter blood, remove wastes, regulate water and salt balance, and help control blood pressure. The liver processes nutrients, detoxifies harmful substances, produces bile, stores glycogen, and helps regulate blood sugar.
15	A larger surface area increases the efficiency of absorption. Villi and microvilli greatly expand the surface area so more nutrients can enter the body.
16	Carbohydrates are digested into glucose in the digestive system, absorbed through the small intestine into the bloodstream, transported by the circulatory system, and taken up by body cells for cellular respiration and energy production.
17	A neuron has dendrites to receive signals, a cell body to process information, and a long axon to transmit impulses over distance. Many neurons also have myelin, which speeds up signal transmission.
18	The pancreas detects low blood glucose and releases glucagon. Glucagon signals the liver to break down glycogen into glucose and release it into the blood, restoring glucose levels.
19	Oxygen uptake would decrease because damaged alveolar walls reduce the surface area and efficiency of gas exchange. This makes it harder for oxygen to diffuse into the blood.
20	If heart valves do not close properly, blood can flow backward, reducing the efficiency of pumping. This lowers the amount of blood reaching tissues, which can reduce oxygen and nutrient delivery and cause fatigue, shortness of breath, and poor organ function.