seodata.dev

keyword

passive processes that move substances across membranes:

Monthly search volume and cost-per-click data for "passive processes that move substances across membranes:" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=passive+processes+that+move+substances+across+membranes:&country=us" +--------------+------------------+ | volume | 140 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-12 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
definition of passive transport 4,400 $0 12/20
describe passive transport 4,400 $0 11/20
passive transport definition 4,400 $0 11/20
passive transport meaning 4,400 $0 11/20
what is passive transport 3,600 $0 13/20
what is a passive transport 3,600 $0 12/20
example of passive transport 3,600 $0 11/20
passive transport types 1,900 $0 11/20
types of passive transport 1,900 $0 11/20
passive transport definition biology 1,000 $0 14/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=passive+processes+that+move+substances+across+membranes:&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt