B4

Question 1

Aotra

Answer 1

Artery that leaves the heart from the left ventricle and carries oxygenated blood to the body

Question 2

Arteries

Answer 2

Blood vessels that carry blood away from the heart. They usually carry oxygenated blood and have a pulse

Question 3

Atria

Answer 3

Upper vhamber of the heart

Question 4

Capillaries

Answer 4

Smallest blood vessels. They run between individual cells and have a wall that is only one cell thick

Question 5

Coronary arteries

Answer 5

Blood vessels that supply oxygentaed blood to the heart and muscles

Question 6

Double circulatory system

Answer 6

Circulation of blood from the heart to the lungs is seperated from the circulation of blood from the heart to the rest of the body

Question 7

Epidermal

Answer 7

Name given to cells that make up the epidermis or outer layer of an organism

Question 8

Guard cells

Answer 8

Surround the stomata in the leaves of a plant and control their opening and closing

Question 9

Hemoglobin

Answer 9

Red pigment that carries oxygen around the body in the red blood cells

Question 10

Palisade mesophyll

Answer 10

Upper layer of the mesophyll tissue in plant leaves made up of closely packed cells that contain many chloroplasts for photosynthesis

Question 11

Phloem

Answer 11

Living transport tissue that carries dissolved food and sugars around the plant

Question 12

Plasma

Answer 12

Clear yello liquid part of the blood that carries dissolved substances and blood cells around the body

Question 13

Platelets

Answer 13

Fragments of cells in the blood that play a vital role in ghe clotting mechanism of the blood

Question 14

Pulmonary artery

Answer 14

Large blood vessels that takes deoxygenated blood from the lungs back to the left atrium of the heart

Question 15

Red blood cells

Answer 15

Boivoncave cells that contain the red pigment haemoglobin and carry oxygen around the body in the blood

Question 16

Spongy mesophyll

Answer 16

Lower layer of mesophyll tissue in plant leaves that contains some chloroplasts and many large air spaces give a big surface area for the exchange of gases

Question 17

Statins

Answer 17

Drugs uses to lower blood cholesterol levels and improve the balance of high to low density lipoproteins in the blood

Question 18

Stent

Answer 18

A metal mesh placed in a blocked or partially blocked artery. They are used to open up the blood vessel by the indlation of a tiny balloon

Question 19

Translocation

Answer 19

Mivement of sugars from the leaves to the rest of the plant through the phloem

Question 20

Trasnpiration

Answer 20

Loss of water vapour deom the leaves of plants through the stomata when they are opened to allow gas exchange for photosynthesis. It involves evaporation from the surface of the cells and diffusion through the stomata

Question 21

Urea

Answer 21

Waste product formed by the breakdown of excess amino acids in the liver

Question 22

Veins

Answer 22

Blood vessels that carry blood away from the heart. They usually carry deoxygenated blood and have valves to prevent backflow of blood

Question 23

Vena cave

Answer 23

Large vein that brings deoxygenated blood from the body into the heart

Question 24

Ventricles

Answer 24

Chambers of the heart that contract to force blood out of the heart

Question 25

White blood cells

Answer 25

Clood cells involved in the immune system of the body. They enguld pathogens and make antibodies and antitoxins

Question 26

Xylem

Answer 26

Non living transport tissue on plants that transports water from the roots to the leaves and shoots