Cell Biology
What is the smallest cell?
Bacterial Cell
.
Deoxyribonucleic acid
What is the first step in a simple food chain?
Producers (plants)
The two main functions of sweat are...
to remove waste products and to cool the body
One of the fattest organs in the human body
Brain
Name the largest cell in the human body.
Ovum (Egg cell)
What are the 3 components of a DNA nucleotide?
a nitrogenous base, a pentose sugar, and a phosphate group
Give sample example for food chain
Grass-Grasshopper-Frog-Snake-Hawk
The longest part of digestive tract is ...
Small Intestine
The most common blood type is ....
The least common is ...
The most common blood type is O positive. The least common is AB negative.
Who discovered the cell for the first time and when?
Robert Hooke in 1665
The Nature of Enzyme is....
Protein
What are 3 types of ecological pyramids?
Steps of organs of respiration in humans
Nose
Pharynx
Larymx
Trachea
Bronchi-bronchioles
Alveoli
Only organ that can float on water
lungs
Which cell organelle is found only in animal cells?
Centrosome
When a lipid is added to a solution of detergent and water....
the detergent breaks up large globules of the lipid into much smaller globules
What happens to aquatic life in deep lakes when water freezes during the winter months?
Ice is less dense than water
Ice is a bad conductor of heat, it slows down this cycle and the water below the ice slab reaching a freezing temperature requires a long time.
In this way, the lake is not entirely frozen and fish are able to survive
Bonus - 400
400
Which part of your body never stop growing...
2
Nose and Ears
What would happen to a sample of red blood cells if they were placed in a hypotonic solution?
A red blood cell will swell and undergo hemolysis (burst)
Why is it impossible for humans to digest cellulose?
human lack appropriate enzymes (cellulase) to break down this complex substance
What Is The Difference Between Mineral And Organic Fertilizers (удобрения)?
Organic fertilizers are made of living organisms or their by-products
Inorganic fertilizers are made of minerals elements or synthetic chemicals
What is suggested by the presence of white blood cells found in the urine?
a sign of infection
Why does the amount of saliva we produce increase suddenly when we vomit ?
The amount of saliva we produce increases suddenly when we vomit to protect our teeth from the acid in our stomach that comes up