Which option correctly completes the fact: which structure controls what enters and leaves a cell?

✅ C. R group

Option A: NH2 group Option B: COOH group Option C: R group Option D: All of these Correct Answer : R group Read more

✅ D. Both a and b

Option A: Those lysosomes which eat parts of their own cells to generate energy. Option B: Those lysosomes which eat old and worn out cellular organelles. Option C: Lysosomes which help in extracellular digestion Option D: Both a and b Correct Answer : Both a and b Read more

✅ A. 1 cm

Option A: 1 cm Option B: 2 cm Option C: 5 cm Option D: 9 cm Correct Answer : 1 cm Read more

✅ C. Hypothesis

Option A: Accumulated Data Option B: Observation Option C: Hypothesis Option D: Conclusion Correct Answer : Hypothesis Read more

✅ A. DNA

a: DNA | b: ATP | c: Glucose | d: Cellulose Read more

✅ C. Rapid heat production.

Option A: Providing insulation in cold environment. Option B: Providing insulation in hot environment Option C: Rapid heat production. Option D: Controlling heat production. Correct Answer : Rapid heat production. Read more

✅

Option A: There is probably more substrate present than there is enzym Option B: There is probably more enzayme available than there is substrat Option C: There is probably more product present than there is either substrate or enzym Option D: Correct Answer : There is probably more enzayme available than there is substrate Read more

✅ C. Mitochondrion

a: Lysosome | b: Golgi apparatus | c: Mitochondrion | d: Ribosome Read more