I have lived in the Toronto area for most of my life. Toronto's Pearson airport (YYZ) might be the largest and busiest airport in Canada, but it still does not take an hour to get from one terminal to another, and you are both landing and departing from Terminal 1, in which you can walk across the relevant parts within far less than an hour.
Regardless of the size of Terminal 1, if there are flight delays, a shortage of airport staff, extremely long queues, or you have a medical emergency or walk the wrong way and get lost, even 2 hours wouldn't be enough, but as everyone is saying, the airline won't sell you this ticket if it's unrealistic for you to catch the last fight (if you miss the flight due to a delay in your arrival time in Toronto or due to some problem at the airport, they will reschedule you to for a subsequent flight and possible provide you with a $20 meal voucher or even a hotel if the flight were later at night but I wouldn't count on those things when you're schedule to land in Toronto at 1:11pm).
Many times, when I had a short connection time (sometimes only 40 minutes or even less, but not necessarily in Toronto), the flight attendants would tell me before the plane even lands to get ready because they received a note with a list of passengers who need to get off the plane quickly to catch their next flight; then when I got off the plane, there was someone ready in a motorized cart, to take me where I needed to be to catch my next flight (and to go to the front of all queues or to go to the "priority" queue).
It is still true that some people will avoid short connections (and yours certainly falls in that category!) despite everything that everyone here has been saying about airlines only doing this if they know it's realistic that you'll catch your last flight, and despite the standard practice for airlines to put you on the subsequent flight for free and to compensate you with meals or hotels in many circumstances. Those people who avoid short connections, do so to avoid stress, or if they like to spend their sweet time during airport transfers, or if they know that they have a habit of finding it difficult to navigate unfamiliar places, or if they know that they can't walk at a normal pace (if this is the case, it would be appropriate for you to click the box that says that you have a disability, and ensure that for the connection you get assistance such as a motorized vehicle or wheelchair with airport staff pushing you), or if they really need to arrive at the final destination on time (i.e. they can't afford to miss the connecting flight and be rescheduled even if it's free).
"There will be checked luggage"
When you check-in at the airport in Denver, simply tell the check-in staff to have the bags "checked-in all the way to Quebec City". They will usually not even need to be told this for an itinerary like yours, but I always remind them. You will get your bags in Quebec City and do not need to pick them up from the airport in Toronto.