Answer:
The Viking tubing is meant to be the cell membrane. Glucose manages to move out of the bag and into the surrounding water but starch does not. Not all substances can pass through the cell membrane; some molecules, like starch are too large. The cell membrane is called selectively permeable because of this.
Explanation:
Answer:
- 1) Somewhere it billion years ago it was considered that there were no air , no earth , no sky , no sun , not even light . The universe was a highly dense and infinitesimally small lump . Suddenly,There was a big explosion.The"Big Bang ".And then was light . That probably was the beginning____ The beginning of matter,The beginning of light and the time !!.
- 2) The big crunch is a hypothetical scenario for the ultimate fate of the universe.
<h2>Hope this helps u :)</h2><h2>Not cheated nor copied answer .</h2>
Answer:
ubiquitin targets CDKs
Explanation:
Cyclins are named such because they undergo a constant cycle of synthesis and degradation during cell division. When cyclins are synthesized, they act as an activating protein and bind to Cdks forming a cyclin-Cdk complex. This complex then acts as a signal to the cell to pass to the next cell cycle phase.
Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.
Answer:
1. Gametophyte
2. Sporophyte
Explanation:
The life cycle of the Liverwort and mosses which are placed in the Bryophytes is divided into the sporophytic and the gametophytic phase.
Gametophyte
The gametophyte is the dominant phase of the life cycle which appears like the ribbon, green in color and posses the gamete producing structure- the antheridium and the archegonium.
Sporophyte
The gametes fuse to form the embryo and from that is produced the sporophyte structure, an umbrella-like structure called a sporangium. This sporangium produces the spores which later will form the gametophyte.