Plant Nutrition And Digestive System

Question 1

Any substances that is required for the growth and maintenance of an organism

Answer 1

nutrient

Question 2

Two types of organisms based on the mode of nutrition and their function

Answer 2

Autotroph- produce their own food
Heterotroph - dependent on other organisms to obtain their needed nutrients

Question 3

2 nutritional requirements of plants

Answer 3

Water and carbon dioxide

Question 4

Chemical equation for photosynthesis

Answer 4

6CO2 + 6H2O -> C6H12O6 + 6O2

Question 5

Route for absorption of water through plasmodesmata

Answer 5

Symplast

Question 6

Route for the absorption of water along the cell walls

Answer 6

Apoplast

Question 7

A unit of energy that indicates the amount of energy contained in a food

Answer 7

Calorie

Question 8

Serves as a major energy source for the cells in the body. Obtained thru grains, cereals, breads, fruits, and vegetables

Answer 8

Carbohydrates

Question 9

Can be used as an energy source but is mainly used in building materials for cell structures

Answer 9

Proteins

Question 10

Used to build cell membranes, steroid hormones, and other cellular structures. This is obtained from lils, margarines, butter, fried food, meat, and processed snack

Answer 10

Fats

Question 11

Main stages of food processing in order

Answer 11

1. Ingestion
2. Digestion
3. Absorption
4. Elimination

Question 12

An act of eating or feeding: coupled with the mechanical breakdown of food

Answer 12

Ingestion

Question 13

Breaking down of food into particles. This involves breaking of chemical bonds through the addition of water

Answer 13

Digestion

Question 14

Passage of digested nutrients and fluid across the tube wall and into the body fluids: the cells take up amino acids and simple sugar

Answer 14

Absorption

Question 15

Expulsion of undigested and unabsorbed materials

Answer 15

Elimination

Question 16

This where the food is initially chewed into shreds and mixed the saliva

Answer 16

Oral cavity

Question 17

The region in the back of the throat that serves as the entrance to the esophagus

Answer 17

Pharynx

Question 18

Connects the pharynx to the stomach. It moves the food into the stomach. It is about 25cm (10 inches) long

Answer 18

Esophagus

Question 19

It is a muscular, stretchable sac located just below the diaphragm

Answer 19

Stomach

Question 20

What are the three important functions of the stomach

Answer 20

Mixes and store ingested food

Secretes gastric juice that helps dissolve food

Regulates the passage of food into the small intestine

Question 21

It is a combination of HCL and acid-stable proteases

Answer 21

Gastric juice

Question 22

What do you call the product of your digestive glands in your stomach lining produce stomach acid and enzymes , which mix with the food to form a murky semifluid mass or paste

Answer 22

Chyme

Question 23

The small intestine (6m long) is composed of 3 regions

Answer 23

Duodenum, jejunum, ileum

Question 24

This is the first part if the small intestine. It helps to further digest food coming from the stomach. It absorbs nutrients and water from food to be used by the body.

Answer 24

Duodenum

Question 25

Its main function is to absorb sugar, amino acids, and fatty acids.

Answer 25

Jejunum

Question 26

Absorption of the end products takes place here. The surface area of which is increased by villi and microvilli

Answer 26

Ileum

Question 27

What are the accessory digestive organs?

Answer 27

Pancreas, liver, galbladder, colon, anus

Question 28

What is the function of pancreas?

Answer 28

It converts the food we eat into fuel for the body’s cell

Question 29

Largest solid organ in the body. It removes toxins from the body’s blood supply, maintains healthy blood sugar levels, regulates blood clotting, and performs hundreds of other vital functions.

Answer 29

Liver

Question 30

Small, pear-shaped organ on the right side of your abdomen, just beneath your liver that produces bile.

Answer 30

Gallbladder

Question 31

It concentrates and stores undigested matter by absorbing mineral ions and water. It does not coil up and does not have villi. Many bacteria live and thrive within the area where they help process undigested material into the final excretory product (feces)

Answer 31

Large intestine or Colon

Question 32

Short extension of the large intestine and is the final segment of the digestive tract. It is where the compacted undigested food from the colon are pushed via peristaltic contractions

Answer 32

Rectum or Anus

Question 33

Plants obtain gases in what way?

Answer 33

Through their leaves

Question 34

Plants require oxygen for _____ and carbon dioxide for ______

Answer 34

Respiration, photosynthesis

Question 35

When water flows into the guard cells by osmosis, their turgor ________?

Answer 35

Increases and expands

Question 36

These are epithelial cell structures found in tree leaves and needles that help promote plant growth and exchange carbon dioxide and water with the surrounding environment. These are tiny holes in the epidermis of leaves.

Answer 36

Stomata

Question 37

When does respiration occur? Day or night?

Answer 37

Day and night

Question 38

When does photosynthesis occur? Day or night?

Answer 38

Day

Question 39

What is the product of respiration?

Answer 39

Carbon dioxide

Question 40

Which is faster by 10 or eve 20 times during the day? Photosynthesis or respiration?

Answer 40

Photosynthesis

Question 41

Oxygen and carbon dioxide move by?

Answer 41

Diffusion

Question 42

in what way do earthworms exchange oxygen and carbon dioxide?

Answer 42

Through their skin

Question 43

What is the equation for photosynthesis

Answer 43

Carbon dioxide + water = glucose + oxygen

Question 44

Which gas is released when plant cells respire aerobically?

Answer 44

Carbon dioxide

Question 45

When does respiration happens in plants?

Answer 45

All the time

Question 46

What colour would hydrogencarbonate indicator be at high concentrations of carbondioxide?

Answer 46

Yellow