7th Science Spiral Review 9/22

What is the basic structural and functional unit of all living things? 

• atom
• cell
• molecule
• human

Which are small organelles that make proteins?

• ribosome

• chloroplast

• mitochondria

• nucleolus

• nucleus

Which organelle is the cell's control center, directing all cell activities and storing the cell's DNA?

• ribosome

• chloroplast

• mitochondria

• nucleolus

• nucleus

Which organelle helps plant cells make food through the process of photosynthesis?

• ribosome

• chloroplast

• mitochondria

• nucleolus

• nucleus

Which cell parts are found in plant cells, but NOT in animal cells?

• nucleus

• cell wall

• cell membrane

• mitochondrion

• chloroplast

Which of the following is the correct order of organization in living things from most basic (simple) to most complex?

• tissue

•   cell

• organ system

• organ

• organism

The particles move in diffusion from a region of ​ (a)   concentration to a region of ​ (b)   concentration.

• high
• low
• medium

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Plants need ________from the air for photosynthesis

• oxygen
• soil
• carbon dioxide
• sugar