PLS HELP
1) Which item has a function that is similar to that of a cell membrane?
A. swimming pool
B. car door
C. water hose
D. airplane engine
2)How does the human brain relate to the nucleus of a cell?
A. They each support their structures.
B. They are each the control center.
C. They are both necessary for all plants and animals to survive.
D. They are each found in an animal's body.
3)Photosynthesis is to chloroplasts as cellular respiration is to ____________________.
A. cytoplasm
B. lysosomes
C. nucleus
D. mitochondria
4)If the chloroplasts in a plant cell were destroyed, what would be the result?
A. The plant cell would no longer have control of what enters it.
B. The plant cell would no longer be able to convert sunlight into sugar.
C. The plant cell would no longer be able to produce proteins.
D. The plant cell would no longer be able to protect the other structures inside of it.
5)Which statement below describes one function of the nucleus?
A. It traps energy from the sun.
B. It makes copies of chromosomes.
C. It gets rid of wastes inside the cell.
D. It produces the energy.
Answers
2)b
3)d
4)b5
1) B. Car door.
As cell membrane decides which components goes inside the cell or which gets out based on the character semi-permeability of itself; it acts like a car door which opens or closes for specific somebody to enter or to go out of the car.
2) B. They are each control centre.
As the nucleus of a cell controls the working and functioning of a cell, the human brain controls the functioning of the whole body.
3) D. Mitochondria.
As photosynthesis takes place in chloroplast, cellular respiration takes place in mitochondria.
4) B. The plant cell would no longer be able to convert sunlight into sugar.
This is solely because without chloroplast photosynthesis is impossible to occur.
5) B. It makes copies of chromosomes.
During cell division, nucleus is the one in which the chromosomes of a cell gets copied.