Worksheetsgrade 7 revision 2
Total questions: 13
Worksheet time: 7mins
29. Electron microscopes use a beam of electrons to produce an image magnified up to ____________ or more
1000
10000
1000000
25. Which structures are found in every living cell?
cell membrane and cytoplasm
chloroplasts and mitochondria
a cell wall and nucleus
chloroplasts and cell wall
What part of a plant cell is used in photosynthesis?
Nucleus
Cytoplasm
Vacuole
Chloroplasts
It control all cell activities..
Lysosomes
Nucleus
ribosomes
Mitochondria
A _________________________________ is an instrument used to magnify objects that are hard to see or invisible to the naked eye.
stethoscope
endoscope
microscope
A ____________________ is an organism that is so small that it is invisible to the naked eye, or microscopic (can only be seen with a microscope).
Plant
microbe/microorganism
molecule
speck
A tiny, nonliving particle that invades and then reproduces inside a living cell.
a. Bacteria
b. Fung
c. Protist
d. Virus
Tissue that works together to perform a function
cell
organ
system organism
d. cell
Getting rid of waste is one of the life processes. What name is given to this process?
excretion
nutrition
ingestion
Which of the following is the correct order of organization in living things from most basic (simple) to most complex?
Organism, cell, tissue, organ, organ system
Organ system, organ, tissue, cell, organism
Cell, tissue, organ, organ system, organism
Cell, organ, tissue, organ, organism, organ system
An animal uses their _____________ to be aware of their surroundings.
Stimuli
Senses
memories
perceptions
What is growth?
staying the same height
staying the same height
running
getting larger and stronger
A plant grows toward the light. The plant's action is an example of
a. Reproduction.
b. Movement.
c. Development
