Struggling on how to format flashcards. Any tips?

I've been an on-and-off user of Anki for a few years but I've always had trouble trying to format my questions and answers (sometimes it's harder than the process of memorising itself!) and I wanted to see if anyone had any pointers for me based on examples I'll give of the way I write flashcards.

Typically, I use Basic. I used to use Cloze and Basic but I had heard of people having problems with visual cues from the length of the Cloze card giving the answer away, or there being too much context such that the answer didn't have much effort involved when it came to recall, so I dropped it.

My current cards are formatted something like, at longest:

"Do **prokaryotic** cells have a **nucleus**?"

"No"

As seen, I tend to bold important terms, sometimes italicising if I wish to provide extra emphasis, althoufh I don't usually underline.

These styles of cards tend to be alright, at least from what I've heard other people say about them in their own experience, but the main problem I'm struggling with is that I'm almost reverting to cards that could be described as too minimal, and I'm not confident that I know how to fix them. An example of these cards would be:

" 'Biology definition:' "

" 'The study of life...' "

I initially veered towards writing some cards like this because it seemed to me like this was some sort of pinnacle of atomicity; the question and answer are both as short as possible. It also seems like it forces recall in the purest sense without relying on any other visual cues, even those as subtle as the shape of the question on my screen - it's just the question and nothing else that tells me what I need to remember. They're also very easy to reverse.

However, I've heard that this is bad practice and I feel like my recall isn't doing too well when it's styled like this so I'm not so sure on whether or not these are good cards. Maybe they're terrible. I don't know. Are questions meant to be longer? How do I make them longer whilst not betraying atomicity, and without adding unnecessary fluff that makes recall less challenging and therefore less likely to engrain the memory? Am I going about this the right way or not?

If anyone has any tips, please let me know.