genetics
What is the basic unit of heredity?
Gene
What is the basic structural and functional unit of the nervous system?
neuron
How many chambers does the heart have?
4
What makes plants green?
chlorophyll
Which organelle is called the “powerhouse of the cell”?
mitochondria
How many chromosomes are in a human somatic cell?
46
Which part of the brain controls balance and coordination?
cerebellum
What is the oxygen-carrying protein in red blood cells called?
hemoglobin
What do plants need for photosynthesis?
light, water, carbon dioxide
What type of cells do bacteria have?
prokaryotic
What is the process called in which gametes are formed?
Meiosis
What is the connection between two neurons called?
synapse
Do arteries carry blood to or from the heart?
from the heart
In which organelle does photosynthesis take place?
chloroplast
Which organelle makes proteins in the cell?
ribosomes
What do we call a person who has one dominant and one recessive allele?
Heterozygous
What covers and protects nerve cells and makes signals travel faster?
myelin sheath
Which blood vessels have the thinnest walls?
capillaries
What are the two main types of plant tissues that transport substances?
xylem and phloem
Name at least two shapes of bacteria.
coccus, bacillus, spirillum
If we cross Aa × aa, what percentage of children will show the recessive trait?
50 %
Which part of the brain controls body temperature?
Hypothalamus
Which side of the heart pumps blood to the body?
left
Which plant tissue is responsible for growth and can divide throughout the plant’s life?
meristems
Which type of microorganism causes chickenpox (varicella) – virus or bacteria?
virus