Biology (digestion + heart)

Question 1

What is the primary function of the digestive system?

Answer 1

To break down food into nutrients that the body can use.

Question 2

True or False: The stomach produces hydrochloric acid to aid in digestion.

Answer 2

True

Question 3

Fill in the blank: The small intestine is where most _____ occurs.

Answer 3

digestion and absorption

Question 4

Which organ is responsible for producing bile?

Answer 4

Liver

Question 5

What are the four main stages of digestion?

Answer 5

Ingestion, digestion, absorption, and egestion.

Question 6

What are enzymes?

Answer 6

Enzymes are biological catalysts that speed up chemical reactions in living organisms.

Question 7

True or False: Enzymes are consumed in the reactions they catalyse.

Answer 7

False

Question 8

Fill in the blank: Enzymes are made up of _____.

Answer 8

proteins

Question 9

Which of the following is NOT a factor affecting enzyme activity? a) Temperature b) pH c) Color d) Substrate concentration

Answer 9

c) Color

Question 10

Name one example of an enzyme and its substrate.

Answer 10

Amylase and starch.

Question 11

Short answer: Describe how temperature affects enzyme activity.

Answer 11

As temperature increases, enzyme activity typically increases until it reaches an optimum temperature, after which activity decreases due to denaturation.

Question 12

What is an independent variable?

Answer 12

Something about an experiment that changes (the input)

Question 13

What is a dependent variable?

Answer 13

Something about an experiment that you measure (the output)

Question 14

What are control variables?

Answer 14

Things about an experiment that you ‘control’ and keep the same to make it fair.

Question 15

What are the 4 chambers of the heart?

Answer 15

The right atrium, right ventricle, left atrium and left ventricle.

Question 16

What are the 2 types of blood?

Answer 16

Oxygenated and deoxygenated

Question 17

What are the 3 types of blood vessels?

Answer 17

Arteries, veins and capillaries.

Question 18

What is the main artery on the left side of the heart?

Answer 18

The aorta

Question 19

What stops the blood going backwards?

Answer 19

Valves that open and close to let the blood through but not backwards.

Question 20

How does a heart attack happen?

Answer 20

When all 4 major arteries are blocked.

Question 21

What is an example of a food with a high amount of protein?

Answer 21

An egg or meat

Question 22

What is an example of a food with a high amount of Carbohydrates?

Answer 22

Bread or pasta

Question 23

What are the 2 types of carbohydrates?

Answer 23

Starch and sugars

Question 24

What is an example of a food with a high amount of Vitamins?

Answer 24

A fruit or vegetable

Question 25

What is an example of a food with a high amount of Fat?

Answer 25

An avocado or crisps

Question 26

What is an example of a food with a high amount of minerals?

Answer 26

Milk

Question 27

What is an example of a food with a high amount of Fibre?

Answer 27

Orange or fruits

Question 28

What is an example of a food with a high amount of water?

Answer 28

Fruits or a juice or, just water

Question 29

What does protein do?

Answer 29

It repairs your muscles and helps muscle growth

Question 30

What do carbohydrates do?

Answer 30

Give you a store of energy

Question 31

What do vitamins do?

Answer 31

Give you energy and prevent diseases

Question 32

What does fat do?

Answer 32

Give you slow energy

Question 33

What do minerals do?

Answer 33

Bone growth and system functions

Question 34

What does fibre do?

Answer 34

It helps your bowel function

Question 35

What does water do?

Answer 35

Water Helps regulate your body temperature.

Question 36

What can you use to detect if starch is present in food?

Answer 36

Using iodine drops directly onto the food

Question 37

Does a crisp contain starch?

Answer 37

Yes

Question 38

Does an onion contain starch?

Answer 38

No

Question 39

Does spaghetti contain starch?

Answer 39

Yes

Question 40

Does cereal contain starch?

Answer 40

Yes

Question 41

Does celery contain starch?

Answer 41

No

Question 42

What is the digestive system?

Answer 42

An organ system responsible for digesting and absorbing nutrients from the food you eat.

Question 43

What does the large intestine do?

Answer 43

Absorbs water and processes food?

Question 44

What does the mouth do?

Answer 44

Breaks down the food chemically and mechanically

Question 45

What is the function of the stomach?

Answer 45

Churns, mixes and breakers down food.

Question 46

What is the function of the Small intestine?

Answer 46

To absorb nutrients

Question 47

What is the function of the pancreas?

Answer 47

To make enzymes

Question 48

What is the job of the rectum?

Answer 48

To store Feces

Question 49

What is feces?

Answer 49

Poo

Question 50

What does the anus do?

Answer 50

Pass food out of the body

Question 51

What is another name for the oesophagus?

Answer 51

Gullet

Question 52

What does the oesophagus do?

Answer 52

Get food from the mouth to the stomach

Question 53

What does the liver do?

Answer 53

Produces bile.

Question 54

How is the large intestine adapted?

Answer 54

Its length.

Question 55

How is the mouth adapted?

Answer 55

It has saliva containing enzymes to break food down chemically and teeth to chew, and break things down mechanically.

Question 56

How it the stomach adapted?

Answer 56

It has digestive juices and acid which chemically break the food down even more.

Question 57

How is the small intestine adapted?

Answer 57

It has digestive juices to extract nutrients and its length allows this.

Question 58

How is the pancreas adapted?

Answer 58

It makes enzymes well to break down food on a molecular level.

Question 59

How is the oesophagus adapted?

Answer 59

It has strong muscles in it to push the food towards the stomach (peristalsis)

Question 60

What enzyme is in your saliva?

Answer 60

Amylase

Question 61

Where does an artery carry blood to?

Answer 61

The rest of the body so the oxygen can be used

Question 62

Where do veins carry blood to?

Answer 62

The lungs so that it can be oxygenated.

Question 63

Where do capillaries carry blood to?

Answer 63

They carry blood between the veins and arteries

Question 64

Are arteries under high or low pressure?

Answer 64

High

Question 65

Are veins under low or high pressure?

Answer 65

Low

Question 66

Is a capillary under high or low pressure?

Answer 66

Low

Question 67

Is an artery’s wall thick or thin?

Answer 67

Thick (3 layers)

Question 68

How thick or thin is the wall of a vein?

Answer 68

Thin

Question 69

How thick or thin is the wall of a Capillary?

Answer 69

Quite Thin

Question 70

Does an artery have valves?

Answer 70

No

Question 71

Does a vein have valves?

Answer 71

Yes

Question 72

Does a capillary have valves?

Answer 72

No

Question 73

Where does the pulmonary artery take blood to?

Answer 73

The lungs

Question 74

Where does the vena cava take blood to?

Answer 74

The right atrium

Question 75

Where does the pulmonary vein take blood to?

Answer 75

The left atrium.

Question 76

Where does the aorta take blood to?

Answer 76

The rest of the body

Question 77

What is special about skeletal muscles?

Answer 77

They are the only muscle we can consciously control.

Question 78

What is the skeletal muscle’s job?

Answer 78

Its job is to contract to move parts of the body.

Question 79

What is special about cardiac muscle?

Answer 79

It is only found in the heart

Question 80

Can cardiac muscle be consciously controlled?

Answer 80

No, it is an involuntary muscle

Question 81

What do cardiac muscles do?

Answer 81

They’re responsible for pumping blood around the body

Question 82

Where is the smooth muscle found?

Answer 82

It’s found inside organs like the small intestine

Question 83

Is smooth muscle voluntary?

Answer 83

No- it is an involuntary muscle

Question 84

What is a pair of muscles called?

Answer 84

An antagonistic muscle pair

Question 85

What is a pathogen?

Answer 85

An organism that produces a disease.

Question 86

Name the male reproductive organism in order.

Answer 86

1. Testis 2. Sperm duct 3. Glands 4.Urethra