plant and animal systems

Question 1

parts of the excretory system

Answer 1

kidneys, aorta, vena cava, ureter, bladder and urethra

Question 2

function of the aorta - excretory system

Answer 2

carriers blood from the heart to the kidney for purification

Question 3

function of the ureter

Answer 3

carry urine from the kidney to the bladder

Question 4

function of the bladder

Answer 4

relax and expand to store urine, contract and flatten to empty urine

Question 5

parts of the kidney

Answer 5

renal artery, renal vein, cortex, medulla and renal pelvis.

Question 6

parts of a nephron

Answer 6

glomerulus, Bowmans capsule, loop of Henle and collecting duct

Question 7

function of the glomererus

Answer 7

then walls allow on small molcules to pass through. e.g smaller molecules through e.g not proteins, blood cells

Question 8

function of the bowmans capsule

Answer 8

surrounds the glomerulus and allows for the filtration of blood from the glomerulus capilleries

Question 9

function of the loop of henle

Answer 9

reabsorption of salts and water into the bloodstream.

Question 10

what does the mouth do

Answer 10

mechanical digestion - chewing from teeth, saliva lubricates food, salivary glands juice contains lingual lipase and amylase. epiglottis and trachea

Question 11

all sphincters in the body

Answer 11

upper esophageal, lower esophagul - entering stomach, pyloric sphincter - exiting stomach, anus

Question 12

function of liver in the digestive system

Answer 12

make and secret bile, process and purify the blood containing new nutrients

Question 13

function of the gall bladder in the digestive system

Answer 13

stores bile

Question 14

function of pancreas in the digestive system

Answer 14

produces pancreatic juices

Question 15

what does pancreatic juice contain

Answer 15

alkaline (bicarbonate), typsin, lipase, amylase, protease

Question 16

what does gastric juices contain

Answer 16

hydrochloric acid, water, mucus, pepsin and lipase.

Question 17

what happens in the duodenum

Answer 17

bile - breaks down fats into fatty acids, pancreatic juices - neutralizes

Question 18

what happens in the jejunum

Answer 18

secretes a small amount of digestive enzymes, absorbs nutrients e.g. vitamins, minerals, carbs, fats and proteins

Question 19

function of the ileum

Answer 19

further absorption of nutrients - bile salts, vitamin b 12

Question 20

function of the large intestine

Answer 20

aborbing water, electrolytes, absorbing vitamins and propelling forces towards rectum, absorb salts, fermentation. bacteria protect our gut and producing vitamins